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Home › Products › Gene function › Fluorescent proteins › Fluorescent protein plasmids › Red fluorescent proteins › DsRed-Express and DsRed-Express2 fluorescent proteins

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DsRed-Express and DsRed-Express2 fluorescent proteins

Plasmid vectors for expression of DsRed-Express and DsRed-Express2 fluorescent proteins

DsRed-Express and DsRed-Express2 are so called because they are rapidly maturing variants of Discosoma sp. red fluorescent protein (DsRed). They also demonstrate enhanced solubility (DsRed-Express2 with the higher solubility), reduced green emission, and faster maturation rate than the original DsRed or DsRed2.

DsRed-Express and DsRed-Express2 are so called because they are rapidly maturing variants of Discosoma sp. red fluorescent protein (DsRed). They also demonstrate enhanced solubility (DsRed-Express2 with the higher solubility), reduced green emission, and faster maturation rate than the original DsRed or DsRed2. Additionally, DsRed-Express fluorescent proteins display a reduced tendency to aggregate (Bevis and Glick 2002). DsRed-Express2 fluorescent protein has been used for whole-cell and stem cell applications (Strack et al. 2008). You may also be interested in mCherry or tdTomato fluorescent proteins.

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Cat. # Product Size Price License Quantity Details
632540 pIRES2 DsRed-Express2 Vector 20 ug Inquire for Quotation

License Statement

ID Number  
72 Living Colors Fluorescent Protein Products: Not-For-Profit Entities: Orders may be placed in the normal manner by contacting your local representative or Takara Bio USA, Inc. Customer Service. Any and all uses of this product will be subject to the terms and conditions of the Non-Commercial Use License Agreement (the “Non-Commercial License”), a copy of which can be found below. As a condition of sale of this product to you, and prior to using this product, you must agree to the terms and conditions of the Non-Commercial License. Under the Non-Commercial License, Takara Bio USA, Inc. grants Not-For-Profit Entities a non-exclusive, non-transferable, non-sublicensable and limited license to use this product for internal, non-commercial scientific research use only. Such license specifically excludes the right to sell or otherwise transfer this product, its components or derivatives thereof to third parties. No modifications to the product may be made without express written permission from Takara Bio USA, Inc. Any other use of this product requires a different license from Takara Bio USA, Inc. For license information, please contact a licensing representative by phone at 650.919.7320 or by e-mail at licensing@takarabio.com. For-Profit Entities wishing to use this product are required to obtain a license from Takara Bio USA, Inc. For license information, please contact a licensing representative by e-mail at licensing@takarabio.com. Not-For-Profit Non-Commercial Use License: A copy of the pIRES2 DsRed-Express2 Vector product License Agreement can be found by clicking here.
69 DsRed Express2 is covered by US patent 8,679,749.
*

pIRES2 DsRed-Express 2 is a eukaryotic expression vector that encodes DsRed-Express2, a variant of Discosoma sp. red fluorescent protein contains the internal ribosome entry site (IRES) of the encephalomyocarditis virus (EMCV) between the MCS and red fluorescent protein DsRed-Express2 coding region. This permits both the gene of interest (cloned into the MCS) and the DsRed-Express2 gene to be translated from a single bicistronic mRNA.

Notice to purchaser

Our products are to be used for Research Use Only. They may not be used for any other purpose, including, but not limited to, use in humans, therapeutic or diagnostic use, or commercial use of any kind. Our products may not be transferred to third parties, resold, modified for resale, or used to manufacture commercial products or to provide a service to third parties without our prior written approval.

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Map of the fluorescent pIRES2 bicistronic expression vectors

Map of the fluorescent pIRES2 bicistronic expression vectors
Map of the fluorescent pIRES2 bicistronic expression vectors.

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Expression of two proteins from a single mRNA transcript

Expression of two proteins from a single mRNA transcript
Expression of two proteins from a single mRNA transcript. A fluorescent protein is translated from an internal ribosome entry site (IRES).

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632540: pIRES2 DsRed-Express2 Vector

632540: pIRES2 DsRed-Express2 Vector
632538 pDsRed-Express2-C1 Vector 20 ug Inquire for Quotation

License Statement

ID Number  
72 Living Colors Fluorescent Protein Products: Not-For-Profit Entities: Orders may be placed in the normal manner by contacting your local representative or Takara Bio USA, Inc. Customer Service. Any and all uses of this product will be subject to the terms and conditions of the Non-Commercial Use License Agreement (the “Non-Commercial License”), a copy of which can be found below. As a condition of sale of this product to you, and prior to using this product, you must agree to the terms and conditions of the Non-Commercial License. Under the Non-Commercial License, Takara Bio USA, Inc. grants Not-For-Profit Entities a non-exclusive, non-transferable, non-sublicensable and limited license to use this product for internal, non-commercial scientific research use only. Such license specifically excludes the right to sell or otherwise transfer this product, its components or derivatives thereof to third parties. No modifications to the product may be made without express written permission from Takara Bio USA, Inc. Any other use of this product requires a different license from Takara Bio USA, Inc. For license information, please contact a licensing representative by phone at 650.919.7320 or by e-mail at licensing@takarabio.com. For-Profit Entities wishing to use this product are required to obtain a license from Takara Bio USA, Inc. For license information, please contact a licensing representative by e-mail at licensing@takarabio.com. Not-For-Profit Non-Commercial Use License: A copy of the pDsRed-Express2-C1 Vector product License Agreement can be found by clicking here.
69 DsRed Express2 is covered by US patent 8,679,749.
*

pDsRed-Express2-C1 encodes DsRed-Express2, a variant of Discosoma sp. red fluorescent protein. It can be used to construct fusions to the C-terminus of DsRed-Express2 which retain the fluorescent properties of the native DsRed-Express2 protein. Its expression can be monitored by flow cytometry, and its intracellular localization can be determined by fluorescence microscopy. pDsRed-Express2-C1 can also be used as a cotransfection marker; the unmodified vector will express DsRed-Express2.

Notice to purchaser

Our products are to be used for Research Use Only. They may not be used for any other purpose, including, but not limited to, use in humans, therapeutic or diagnostic use, or commercial use of any kind. Our products may not be transferred to third parties, resold, modified for resale, or used to manufacture commercial products or to provide a service to third parties without our prior written approval.

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Schematic for fluorescent fusion protein vectors

Schematic for fluorescent fusion protein vectors

Schematic for fluorescent fusion protein vectors. Panel A. N-terminal fluorescent protein (FP) vector. Panel B. C-terminal fluorescent protein vector.

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Robust expression of DsRed-Express2 in mouse bone marrow hematopoietic stem and progenitor cells

Robust expression of DsRed-Express2 in mouse bone marrow hematopoietic stem and progenitor cells

Robust expression of DsRed-Express and DsRed-Express2 in mouse bone marrow hematopoietic stem and progenitor cells. Mononuclear bone marrow cells were transduced with retroviral vectors encoding DsRed-Express (Panel A), DsRed-Express2 (Panel B), or EGFP (Panel C), and fluorescent cells were sorted 87 hr later. Red and green fluorescence signals were detected using the PE and FITC filter sets, respectively. The lines represent gates defined by analyzing untransduced cells.

632537 pDsRed-Express2-N1 Vector 20 ug Inquire for Quotation

License Statement

ID Number  
72 Living Colors Fluorescent Protein Products: Not-For-Profit Entities: Orders may be placed in the normal manner by contacting your local representative or Takara Bio USA, Inc. Customer Service. Any and all uses of this product will be subject to the terms and conditions of the Non-Commercial Use License Agreement (the “Non-Commercial License”), a copy of which can be found below. As a condition of sale of this product to you, and prior to using this product, you must agree to the terms and conditions of the Non-Commercial License. Under the Non-Commercial License, Takara Bio USA, Inc. grants Not-For-Profit Entities a non-exclusive, non-transferable, non-sublicensable and limited license to use this product for internal, non-commercial scientific research use only. Such license specifically excludes the right to sell or otherwise transfer this product, its components or derivatives thereof to third parties. No modifications to the product may be made without express written permission from Takara Bio USA, Inc. Any other use of this product requires a different license from Takara Bio USA, Inc. For license information, please contact a licensing representative by phone at 650.919.7320 or by e-mail at licensing@takarabio.com. For-Profit Entities wishing to use this product are required to obtain a license from Takara Bio USA, Inc. For license information, please contact a licensing representative by e-mail at licensing@takarabio.com. Not-For-Profit Non-Commercial Use License: A copy of the pDsRed-Express2-N1 Vector product License Agreement can be found by clicking here.
69 DsRed Express2 is covered by US patent 8,679,749.
*

pDsRed-Express2-N1 is a mammalian expression vector that encodes DsRed-Express2, a variant of Discosoma sp. red fluorescent protein (DsRed). pDsRed-Express2-N1 can be used to construct fusions to the N-terminus of DsRed-Express2. The fusion construct retains the fluorescent properties of the native DsRed-Express2 protein, and its expression can be monitored by flow cytometry and its cellular localization can be determined by fluorescence microscopy. pDsRed-Express2-N1 can also be used as a cotransfection marker; the unmodified vector will express DsRed-Express2 in mammalian cells.

Notice to purchaser

Our products are to be used for Research Use Only. They may not be used for any other purpose, including, but not limited to, use in humans, therapeutic or diagnostic use, or commercial use of any kind. Our products may not be transferred to third parties, resold, modified for resale, or used to manufacture commercial products or to provide a service to third parties without our prior written approval.

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Schematic for fluorescent fusion protein vectors

Schematic for fluorescent fusion protein vectors

Schematic for fluorescent fusion protein vectors. Panel A. N-terminal fluorescent protein (FP) vector. Panel B. C-terminal fluorescent protein vector.

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Robust expression of DsRed-Express2 in mouse bone marrow hematopoietic stem and progenitor cells

Robust expression of DsRed-Express2 in mouse bone marrow hematopoietic stem and progenitor cells

Robust expression of DsRed-Express and DsRed-Express2 in mouse bone marrow hematopoietic stem and progenitor cells. Mononuclear bone marrow cells were transduced with retroviral vectors encoding DsRed-Express (Panel A), DsRed-Express2 (Panel B), or EGFP (Panel C), and fluorescent cells were sorted 87 hr later. Red and green fluorescence signals were detected using the PE and FITC filter sets, respectively. The lines represent gates defined by analyzing untransduced cells.

632536 pDsRed-Express2-1 Vector 20 ug Inquire for Quotation

License Statement

ID Number  
72 Living Colors Fluorescent Protein Products: Not-For-Profit Entities: Orders may be placed in the normal manner by contacting your local representative or Takara Bio USA, Inc. Customer Service. Any and all uses of this product will be subject to the terms and conditions of the Non-Commercial Use License Agreement (the “Non-Commercial License”), a copy of which can be found below. As a condition of sale of this product to you, and prior to using this product, you must agree to the terms and conditions of the Non-Commercial License. Under the Non-Commercial License, Takara Bio USA, Inc. grants Not-For-Profit Entities a non-exclusive, non-transferable, non-sublicensable and limited license to use this product for internal, non-commercial scientific research use only. Such license specifically excludes the right to sell or otherwise transfer this product, its components or derivatives thereof to third parties. No modifications to the product may be made without express written permission from Takara Bio USA, Inc. Any other use of this product requires a different license from Takara Bio USA, Inc. For license information, please contact a licensing representative by phone at 650.919.7320 or by e-mail at licensing@takarabio.com. For-Profit Entities wishing to use this product are required to obtain a license from Takara Bio USA, Inc. For license information, please contact a licensing representative by e-mail at licensing@takarabio.com. Not-For-Profit Non-Commercial Use License: A copy of the pDsRed-Express2-1 Vector product License Agreement can be found by clicking here.
69 DsRed Express2 is covered by US patent 8,679,749.
*

pDsRed-Express2-1 encodes DsRed-Express2, a variant of Discosoma sp. red fluorescent protein. pDsRed-Express2-1 is a promoterless vector that can be used to monitor transcription from different promoters and promoter/enhancer combinations inserted into the multiple cloning site (MCS) upstream of the promoterless DsRed-Express2 gene. Without the addition of a functional promoter, this vector will not express DsRed-Express2.

Notice to purchaser

Our products are to be used for Research Use Only. They may not be used for any other purpose, including, but not limited to, use in humans, therapeutic or diagnostic use, or commercial use of any kind. Our products may not be transferred to third parties, resold, modified for resale, or used to manufacture commercial products or to provide a service to third parties without our prior written approval.

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Vector map for promoterless fluorescent protein vectors AcGFP1-1, DsRed2-1, DsRed-Express-1, HcRed1-1 and ZsGreen1-1

Vector map for promoterless fluorescent protein vectors AcGFP1-1, DsRed2-1, DsRed-Express-1, HcRed1-1 and ZsGreen1-1

Vector map for promoterless fluorescent protein vectors pAcGFP1-1, pDsRed2-1, pDsRed-Express-1, pHcRed1-1 and pZsGreen1-1.

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Robust expression of DsRed-Express2 in mouse bone marrow hematopoietic stem and progenitor cells

Robust expression of DsRed-Express2 in mouse bone marrow hematopoietic stem and progenitor cells

Robust expression of DsRed-Express and DsRed-Express2 in mouse bone marrow hematopoietic stem and progenitor cells. Mononuclear bone marrow cells were transduced with retroviral vectors encoding DsRed-Express (Panel A), DsRed-Express2 (Panel B), or EGFP (Panel C), and fluorescent cells were sorted 87 hr later. Red and green fluorescence signals were detected using the PE and FITC filter sets, respectively. The lines represent gates defined by analyzing untransduced cells.

632535 pDsRed-Express2 Vector 20 ug Inquire for Quotation

License Statement

ID Number  
72 Living Colors Fluorescent Protein Products: Not-For-Profit Entities: Orders may be placed in the normal manner by contacting your local representative or Takara Bio USA, Inc. Customer Service. Any and all uses of this product will be subject to the terms and conditions of the Non-Commercial Use License Agreement (the “Non-Commercial License”), a copy of which can be found below. As a condition of sale of this product to you, and prior to using this product, you must agree to the terms and conditions of the Non-Commercial License. Under the Non-Commercial License, Takara Bio USA, Inc. grants Not-For-Profit Entities a non-exclusive, non-transferable, non-sublicensable and limited license to use this product for internal, non-commercial scientific research use only. Such license specifically excludes the right to sell or otherwise transfer this product, its components or derivatives thereof to third parties. No modifications to the product may be made without express written permission from Takara Bio USA, Inc. Any other use of this product requires a different license from Takara Bio USA, Inc. For license information, please contact a licensing representative by phone at 650.919.7320 or by e-mail at licensing@takarabio.com. For-Profit Entities wishing to use this product are required to obtain a license from Takara Bio USA, Inc. For license information, please contact a licensing representative by e-mail at licensing@takarabio.com. Not-For-Profit Non-Commercial Use License: A copy of the pDsRed-Express2 Vector product License Agreement can be found by clicking here.
69 DsRed Express2 is covered by US patent 8,679,749.
*

pDsRed-Express2 is a prokaryotic expression vector that encodes DsRed-Express2, a variant of Discosoma sp. red fluorescent protein. pDsRed-Express 2 is primarily intended to serve as a source of DsRed-Express 2 cDNA. The flanking MCS regions make it possible to excise the DsRed-Express2 coding sequence and insert it into other expression vectors of choice. The vector can also be used in bacteria to produce DsRed-Express2 protein.

Notice to purchaser

Our products are to be used for Research Use Only. They may not be used for any other purpose, including, but not limited to, use in humans, therapeutic or diagnostic use, or commercial use of any kind. Our products may not be transferred to third parties, resold, modified for resale, or used to manufacture commercial products or to provide a service to third parties without our prior written approval.

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632535: pDsRed-Express2 Vector

632535: pDsRed-Express2 Vector

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Basic fluorescent protein vector map

Basic fluorescent protein vector map

Basic fluorescent protein vector map. Use this bacterial expression vector as a source of the fluorescent protein gene. Note: There is a stop codon at the 5' end of the 3' MCS. The 3' MCS should not be used for cloning.

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Robust expression of DsRed-Express2 in mouse bone marrow hematopoietic stem and progenitor cells

Robust expression of DsRed-Express2 in mouse bone marrow hematopoietic stem and progenitor cells

Robust expression of DsRed-Express and DsRed-Express2 in mouse bone marrow hematopoietic stem and progenitor cells. Mononuclear bone marrow cells were transduced with retroviral vectors encoding DsRed-Express (Panel A), DsRed-Express2 (Panel B), or EGFP (Panel C), and fluorescent cells were sorted 87 hr later. Red and green fluorescence signals were detected using the PE and FITC filter sets, respectively. The lines represent gates defined by analyzing untransduced cells.

632437 rDsRed-Express Protein 100 ug USD $464.00

Affinity purified recombinant Discosoma sp. red fluorescent protein (rDsRed-Express). rDsRed-Express can be used as a standard for protein gels, Western blots, fluorometry, and fluorescence activated cell sorting (FACS). It can also be used as a control for DsRed-Express expression studies and for microinjection into cells and tissues. At its N-terminus, rDsRed-Express contains a 6xHN epitope tag, used for purification of the protein by metal ion affinity chromatagraphy (IMAC) with our TALON Resin. An enterokinase (EK) site, located between the tag and DsRed-Express, makes it possible to remove the 6xHN polypetide if desired. The 6xHN tag does not interfere with the protein's characteristic spectral properties.

Notice to purchaser

Our products are to be used for Research Use Only. They may not be used for any other purpose, including, but not limited to, use in humans, therapeutic or diagnostic use, or commercial use of any kind. Our products may not be transferred to third parties, resold, modified for resale, or used to manufacture commercial products or to provide a service to third parties without our prior written approval.

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632430 pDsRed-Express-C1 Vector 20 ug Inquire for Quotation *

pDsRed-Express-C1 encodes DsRed-Express, a variant of Discosoma sp. red fluorescent protein (DsRed). DsRed-Express contains nine amino acid substitutions (as compared to DsRed1), which improve the solubility, accelerate the maturation, and decrease the level of residual green emission. pDsRed-Express allows genes cloned into the multiple cloning site (MCS) downstream of the DsRed-Express coding sequence to be expressed as fusions to the C-terminus of DsRed-Express. The unmodified vector will express DsRed-Express in mammalian cells.

Notice to purchaser

Our products are to be used for Research Use Only. They may not be used for any other purpose, including, but not limited to, use in humans, therapeutic or diagnostic use, or commercial use of any kind. Our products may not be transferred to third parties, resold, modified for resale, or used to manufacture commercial products or to provide a service to third parties without our prior written approval.

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Schematic for fluorescent fusion protein vectors

Schematic for fluorescent fusion protein vectors

Schematic for fluorescent fusion protein vectors. Panel A. N-terminal fluorescent protein (FP) vector. Panel B. C-terminal fluorescent protein vector.

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Hygromycin DsRed-Monomer and AcGFP1 expression vectors

Hygromycin DsRed-Monomer and AcGFP1 expression vectors

Hygromycin DsRed-Monomer and AcGFP1 expression vectors. Vector maps of our DsRed-Monomer and pAcGFP1 Hyg-N1 (Panel A) and Hyg-C1 (Panel B) mammalian expression vectors for fusion applications. Each vector contains a hygromycin selection cassette. These vectors can be used together with our standard N1/C1 vectors containing the neomycin selection cassette to establish double stable cell lines expressing two different Living Colors proteins.

632429 pDsRed-Express-N1 Vector 20 ug Inquire for Quotation *

pDsRed-Express-N1 encodes DsRed-Express, a variant of Discosoma sp. red fluorescent protein (DsRed). DsRed-Express contains nine amino acid substitutions (as compared to DsRed1), which improve the solubility, increase the maturation rate, and decrease the level of residual green emission. pDsRed-Express allows genes cloned into the multiple cloning site (MCS) upstream of the DsRed-Express coding sequence to be expressed as fusions to the N-terminus of DsRed-Express. The unmodified vector will express DsRed-Express in mammalian cells.

Notice to purchaser

Our products are to be used for Research Use Only. They may not be used for any other purpose, including, but not limited to, use in humans, therapeutic or diagnostic use, or commercial use of any kind. Our products may not be transferred to third parties, resold, modified for resale, or used to manufacture commercial products or to provide a service to third parties without our prior written approval.

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Schematic for fluorescent fusion protein vectors

Schematic for fluorescent fusion protein vectors

Schematic for fluorescent fusion protein vectors. Panel A. N-terminal fluorescent protein (FP) vector. Panel B. C-terminal fluorescent protein vector.

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Hygromycin DsRed-Monomer and AcGFP1 expression vectors

Hygromycin DsRed-Monomer and AcGFP1 expression vectors

Hygromycin DsRed-Monomer and AcGFP1 expression vectors. Vector maps of our DsRed-Monomer and pAcGFP1 Hyg-N1 (Panel A) and Hyg-C1 (Panel B) mammalian expression vectors for fusion applications. Each vector contains a hygromycin selection cassette. These vectors can be used together with our standard N1/C1 vectors containing the neomycin selection cassette to establish double stable cell lines expressing two different Living Colors proteins.

632423 pDsRed-Express-DR Vector 20 ug Inquire for Quotation *

pDsRed-Express-DR is a promoterless vector that encodes DsRed-Express-DR, a destabilized variant of Discosoma sp. red fluorescent protein, DsRed-Express. DsRed-Express-DR contains a PEST degradation domain at its C-terminus, so it is rapidly turned over in mammalian cell culture. Because if its short half-life, DsRed-Express-DR is well suited for monitoring the activity of promoters and promoter/enhancer combinations cloned into the multiple cloning site, located upstream of the human codon-optimized DsRed-Express-DR gene. Without the addition of a functional promoter, this vector will not express DsRed-Express-DR.

Notice to purchaser

Our products are to be used for Research Use Only. They may not be used for any other purpose, including, but not limited to, use in humans, therapeutic or diagnostic use, or commercial use of any kind. Our products may not be transferred to third parties, resold, modified for resale, or used to manufacture commercial products or to provide a service to third parties without our prior written approval.

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Vector map for destabilized fluorescent protein vectors pDsRed-Express-DR, pHcRed1-DR, and pZsGreen1-DR

Vector map for destabilized fluorescent protein vectors pDsRed-Express-DR, pHcRed1-DR, and pZsGreen1-DR
Vector map for destabilized fluorescent protein vectors pDsRed-Express-DR, pHcRed1-DR, and pZsGreen1-DR. These fluorescent protein variants display rapid turnover rates.
632413 pDsRed-Express-1 Vector 20 ug Inquire for Quotation *

pDsRed-Express-1 is a promoterless mammalian expression vector that can be used to monitor transcription from different promoters and promoter/enhancer combinations inserted into MCS. It encodes DsRed-Express, a variant of Discosoma sp. red fluorescent protein (DsRed). DsRed-Express contains nine amino acid substitutions which improve the solubility of the protein, reduce the time from transfection to detection of red fluorescence, and decrease the level of residual green emission. When DsRed-Express is expressed in mammalian cell cultures, red-emitting cells can be detected by either fluorescence microscopy or flow cytometry 8–12 hours after transfection. Although DsRed-Express most likely forms the same tetrameric structure as wild-type DsRed, DsRed-Express displays a reduced tendency to aggregate. The DsRed-Express coding sequence is human codon-optimized for high expression in mammalian cells.

Notice to purchaser

Our products are to be used for Research Use Only. They may not be used for any other purpose, including, but not limited to, use in humans, therapeutic or diagnostic use, or commercial use of any kind. Our products may not be transferred to third parties, resold, modified for resale, or used to manufacture commercial products or to provide a service to third parties without our prior written approval.

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Vector map for promoterless fluorescent protein vectors AcGFP1-1, DsRed2-1, DsRed-Express-1, HcRed1-1 and ZsGreen1-1

Vector map for promoterless fluorescent protein vectors AcGFP1-1, DsRed2-1, DsRed-Express-1, HcRed1-1 and ZsGreen1-1

Vector map for promoterless fluorescent protein vectors pAcGFP1-1, pDsRed2-1, pDsRed-Express-1, pHcRed1-1 and pZsGreen1-1.

632412 pDsRed-Express Vector 20 ug Inquire for Quotation *

pDsRed-Express is a prokaryotic expression vector that encodes DsRed-Express, a variant of Discosoma sp. red fluorescent protein (DsRed). pDsRed-Express is primarily intended to serve as a source of DsRed-Express cDNA. The flanking MCS regions make it possible to excise the DsRed-Express coding sequence and insert it into other expression vectors of choice. The vector can also be used in bacteria to produce DsRed-Express protein.

DsRed-Express contains nine amino acid substitutions which improve the solubility of the protein, reduce the time from transfection to detection of red fluorescence, and decrease the level of residual green emission. When DsRed-Express is expressed in mammalian cell cultures, red-emitting cells can be detected by either fluorescence microscopy or flow cytometry 8–12 hours after transfection. Although DsRed-Express most likely forms the same tetrameric structure as wild-type DsRed, DsRed-Express displays a reduced tendency to aggregate. The DsRed-Express coding sequence is human codon-optimized for high expression in mammalian cells.

Notice to purchaser

Our products are to be used for Research Use Only. They may not be used for any other purpose, including, but not limited to, use in humans, therapeutic or diagnostic use, or commercial use of any kind. Our products may not be transferred to third parties, resold, modified for resale, or used to manufacture commercial products or to provide a service to third parties without our prior written approval.

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632412: pDsRed-Express Vector

632412: pDsRed-Express Vector

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Basic fluorescent protein vector map

Basic fluorescent protein vector map

Basic fluorescent protein vector map. Use this bacterial expression vector as a source of the fluorescent protein gene. Note: There is a stop codon at the 5' end of the 3' MCS. The 3' MCS should not be used for cloning.

631980 pEF1alpha-IRES-DsRed-Express2 Vector 10 ug Inquire for Quotation

License Statement

ID Number  
69 DsRed Express2 is covered by US patent 8,679,749.
72 Living Colors Fluorescent Protein Products: Not-For-Profit Entities: Orders may be placed in the normal manner by contacting your local representative or Takara Bio USA, Inc. Customer Service. Any and all uses of this product will be subject to the terms and conditions of the Non-Commercial Use License Agreement (the “Non-Commercial License”), a copy of which can be found below. As a condition of sale of this product to you, and prior to using this product, you must agree to the terms and conditions of the Non-Commercial License. Under the Non-Commercial License, Takara Bio USA, Inc. grants Not-For-Profit Entities a non-exclusive, non-transferable, non-sublicensable and limited license to use this product for internal, non-commercial scientific research use only. Such license specifically excludes the right to sell or otherwise transfer this product, its components or derivatives thereof to third parties. No modifications to the product may be made without express written permission from Takara Bio USA, Inc. Any other use of this product requires a different license from Takara Bio USA, Inc. For license information, please contact a licensing representative by phone at 650.919.7320 or by e-mail at licensing@takarabio.com. For-Profit Entities wishing to use this product are required to obtain a license from Takara Bio USA, Inc. For license information, please contact a licensing representative by e-mail at licensing@takarabio.com. Not-For-Profit Non-Commercial Use License: A copy of the pEF1alpha-IRES-DsRed-Express2 Vector product License Agreement can be found by clicking here.
*

pEF1α-IRES-DsRed-Express2 is a bicistronic mammalian expression vector that allows the simultaneous, constitutive expression of a protein of interest and the red fluorescent protein DsRed-Express2. Expression of the bicistronic transcript is driven by the human elongation factor 1 alpha (EF1α) promoter.

Notice to purchaser

Our products are to be used for Research Use Only. They may not be used for any other purpose, including, but not limited to, use in humans, therapeutic or diagnostic use, or commercial use of any kind. Our products may not be transferred to third parties, resold, modified for resale, or used to manufacture commercial products or to provide a service to third parties without our prior written approval.

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Robust expression of DsRed-Express2 in mouse bone marrow hematopoietic stem and progenitor cells

Robust expression of DsRed-Express2 in mouse bone marrow hematopoietic stem and progenitor cells

Robust expression of DsRed-Express and DsRed-Express2 in mouse bone marrow hematopoietic stem and progenitor cells. Mononuclear bone marrow cells were transduced with retroviral vectors encoding DsRed-Express (Panel A), DsRed-Express2 (Panel B), or EGFP (Panel C), and fluorescent cells were sorted 87 hr later. Red and green fluorescence signals were detected using the PE and FITC filter sets, respectively. The lines represent gates defined by analyzing untransduced cells.

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631980: pEF1alpha-IRES-DsRed-Express2 Vector

631980: pEF1alpha-IRES-DsRed-Express2 Vector

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Expression of AcGFP1 driven by the EF-1 alpha promoter in stem cell lines is higher than expression driven by the CMV promoter

Expression of AcGFP1 driven by the EF-1 alpha promoter in stem cell lines is higher than expression driven by the CMV promoter

Expression of AcGFP1 driven by the EF-1 alpha promoter in stem cell lines is higher than expression driven by the CMV promoter. The mouse embryonic stem cell lines E14 (Panel A) and D3 (Panel B) were transduced by Lenti-X lentivirus, expressing AcGFP1 either under the control of the CMV promoter or the Elongation factor alpha (EF-1 alpha) promoter. The expression level of AcGFP1 in infected cells five days postinfection was monitored by FACS analysis using the FL1 channel. The expression of AcGFP1 driven by the EF-1 alpha promoter in both stem cell lines was considerably higher compared to the CMV promoter. This is mainly due to a considerably lower rate of silencing of the EF-1 alpha promoter in stem cells compared to the CMV promoter as published (Wang, et al. (2008) Stem Cells Dev 17:279–289).

632559 pLVX-DsRed-Express2-C1 Vector 10 ug Inquire for Quotation

License Statement

ID Number  
69 DsRed Express2 is covered by US patent 8,679,749.
72 Living Colors Fluorescent Protein Products: Not-For-Profit Entities: Orders may be placed in the normal manner by contacting your local representative or Takara Bio USA, Inc. Customer Service. Any and all uses of this product will be subject to the terms and conditions of the Non-Commercial Use License Agreement (the “Non-Commercial License”), a copy of which can be found below. As a condition of sale of this product to you, and prior to using this product, you must agree to the terms and conditions of the Non-Commercial License. Under the Non-Commercial License, Takara Bio USA, Inc. grants Not-For-Profit Entities a non-exclusive, non-transferable, non-sublicensable and limited license to use this product for internal, non-commercial scientific research use only. Such license specifically excludes the right to sell or otherwise transfer this product, its components or derivatives thereof to third parties. No modifications to the product may be made without express written permission from Takara Bio USA, Inc. Any other use of this product requires a different license from Takara Bio USA, Inc. For license information, please contact a licensing representative by phone at 650.919.7320 or by e-mail at licensing@takarabio.com. For-Profit Entities wishing to use this product are required to obtain a license from Takara Bio USA, Inc. For license information, please contact a licensing representative by e-mail at licensing@takarabio.com. Not-For-Profit Non-Commercial Use License: A copy of the pLVX-DsRed-Express2-C1 Vector product License Agreement can be found by clicking here.
*

This lentiviral expression vector encodes a DsRed-Express2 fluorescent protein tag. The protein is a rapidly maturing tetrameric fluorescent protein from Discosoma sp. that has minimal cytotoxicity, high solubility, and exhibits strong and stable expression in mammalian cells. Inserting a cDNA in the MCS downstream of the DsRed-Express2 coding sequence joins your protein of interest to the C-terminus of the tag, and allows the fusion protein to be tracked and studied in transduced cells. To package the vector into high-titer, replication-incompetent lentivirus, we recommend using the Lenti-X Packaging Single Shots (VSV-G) and the Lenti-X 293T Cell Line. The resulting lentivirus can then be used to transduce virtually any mammalian cell type.

Notice to purchaser

Our products are to be used for Research Use Only. They may not be used for any other purpose, including, but not limited to, use in humans, therapeutic or diagnostic use, or commercial use of any kind. Our products may not be transferred to third parties, resold, modified for resale, or used to manufacture commercial products or to provide a service to third parties without our prior written approval.

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Robust expression of DsRed-Express2 in mouse bone marrow hematopoietic stem and progenitor cells

Robust expression of DsRed-Express2 in mouse bone marrow hematopoietic stem and progenitor cells

Robust expression of DsRed-Express and DsRed-Express2 in mouse bone marrow hematopoietic stem and progenitor cells. Mononuclear bone marrow cells were transduced with retroviral vectors encoding DsRed-Express (Panel A), DsRed-Express2 (Panel B), or EGFP (Panel C), and fluorescent cells were sorted 87 hr later. Red and green fluorescence signals were detected using the PE and FITC filter sets, respectively. The lines represent gates defined by analyzing untransduced cells.

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Lentiviral vectors with fluorescent proteins

Lentiviral vectors with fluorescent proteins

Lentiviral vectors with fluorescent proteins. Lenti-X vectors contain sequence elements that facilitate lentiviral packaging and/or boost transgene expression, including the LTRs, packaging signal (Ψ), Rev response element (RRE), and central polypurine tract/central termination sequence (cPPT/CTS) from HIV-1; and the woodchuck hepatitis virus post-transcriptional regulatory element (WPRE). Vectors can express your protein fused at its N- or C- terminus to either a green (AcGFP1) or red (DsRed-Monomer) fluorescent protein tag, or coexpress it as a separate protein along with ZsGreen1 (shown), mCherry, or tdTomato.

632560 pLVX-DsRed-Express2-N1 Vector 10 ug Inquire for Quotation

License Statement

ID Number  
69 DsRed Express2 is covered by US patent 8,679,749.
72 Living Colors Fluorescent Protein Products: Not-For-Profit Entities: Orders may be placed in the normal manner by contacting your local representative or Takara Bio USA, Inc. Customer Service. Any and all uses of this product will be subject to the terms and conditions of the Non-Commercial Use License Agreement (the “Non-Commercial License”), a copy of which can be found below. As a condition of sale of this product to you, and prior to using this product, you must agree to the terms and conditions of the Non-Commercial License. Under the Non-Commercial License, Takara Bio USA, Inc. grants Not-For-Profit Entities a non-exclusive, non-transferable, non-sublicensable and limited license to use this product for internal, non-commercial scientific research use only. Such license specifically excludes the right to sell or otherwise transfer this product, its components or derivatives thereof to third parties. No modifications to the product may be made without express written permission from Takara Bio USA, Inc. Any other use of this product requires a different license from Takara Bio USA, Inc. For license information, please contact a licensing representative by phone at 650.919.7320 or by e-mail at licensing@takarabio.com. For-Profit Entities wishing to use this product are required to obtain a license from Takara Bio USA, Inc. For license information, please contact a licensing representative by e-mail at licensing@takarabio.com. Not-For-Profit Non-Commercial Use License: A copy of the pLVX-DsRed-Express2-N1 Vector product License Agreement can be found by clicking here.
*

This lentiviral expression vector encodes a DsRed-Express2 fluorescent protein tag. The protein is a rapidly maturing tetrameric fluorescent protein from Discosoma sp. that has minimal cytotoxicity, high solubility, and exhibits strong and stable expression mammalian cells. Inserting a cDNA in the MCS upstream of the DsRed-Express2 coding sequence joins your protein of interest to the N-terminus of the tag, and allows the fusion protein to be tracked and studied in transduced cells. To package the vector into high-titer, replication-incompetent lentivirus, we recommend using the Lenti-X Packaging Single Shots and the Lenti-X 293T Cell Line. The resulting lentivirus can then be used to transduce virtually any mammalian cell type.

Notice to purchaser

Our products are to be used for Research Use Only. They may not be used for any other purpose, including, but not limited to, use in humans, therapeutic or diagnostic use, or commercial use of any kind. Our products may not be transferred to third parties, resold, modified for resale, or used to manufacture commercial products or to provide a service to third parties without our prior written approval.

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Robust expression of DsRed-Express2 in mouse bone marrow hematopoietic stem and progenitor cells

Robust expression of DsRed-Express2 in mouse bone marrow hematopoietic stem and progenitor cells

Robust expression of DsRed-Express and DsRed-Express2 in mouse bone marrow hematopoietic stem and progenitor cells. Mononuclear bone marrow cells were transduced with retroviral vectors encoding DsRed-Express (Panel A), DsRed-Express2 (Panel B), or EGFP (Panel C), and fluorescent cells were sorted 87 hr later. Red and green fluorescence signals were detected using the PE and FITC filter sets, respectively. The lines represent gates defined by analyzing untransduced cells.

Back

Lentiviral vectors with fluorescent proteins

Lentiviral vectors with fluorescent proteins

Lentiviral vectors with fluorescent proteins. Lenti-X vectors contain sequence elements that facilitate lentiviral packaging and/or boost transgene expression, including the LTRs, packaging signal (Ψ), Rev response element (RRE), and central polypurine tract/central termination sequence (cPPT/CTS) from HIV-1; and the woodchuck hepatitis virus post-transcriptional regulatory element (WPRE). Vectors can express your protein fused at its N- or C- terminus to either a green (AcGFP1) or red (DsRed-Monomer) fluorescent protein tag, or coexpress it as a separate protein along with ZsGreen1 (shown), mCherry, or tdTomato.

632521 pRetroX-IRES-DsredExpress Vector 20 ug Inquire for Quotation *

The pRetroX-IRES-DsRedExpress vector is a bicistronic retroviral expression vector containing DsRed-Express as a marker for transfection/infection efficiency. A gene of interest is inserted into the MCS located upstream of the encephalomyocarditis virus (EMCV) internal ribosomal entry site (IRES). The IRES sequence allows the protein of interest and DsRed-Express to be independently translated from the same mRNA transcript. DsRed-Express is a human codon-optimized variant of the Discosoma sp. red fluorescent protein (DsRed) that has been engineered for faster maturation.

Notice to purchaser

Our products are to be used for Research Use Only. They may not be used for any other purpose, including, but not limited to, use in humans, therapeutic or diagnostic use, or commercial use of any kind. Our products may not be transferred to third parties, resold, modified for resale, or used to manufacture commercial products or to provide a service to third parties without our prior written approval.

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Mechanism of IRES bicistronic expression from Retro-X retroviral vectors

Mechanism of IRES bicistronic expression from Retro-X retroviral vectors

Mechanism of IRES bicistronic expression from Retro-X retroviral vectors. The internal ribosome entry site (IRES) permits a protein of interest and a fluorescent protein to be independently translated from the same mRNA. SD = Splice Donor. SA = Splice Acceptor. ψ = packaging signal. LTR = long terminal repeat.

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632521: pRetroX-IRES-DsredExpress Vector

632521: pRetroX-IRES-DsredExpress Vector

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Retro-X retroviral vector maps

Retro-X retroviral vector maps

Retro-X retroviral vector maps. IRES-containing bicistronic retroviral vectors allow you to express two target genes (Vector A: pQCXIX) or a target gene and an antibiotic resistance gene (Vector B: pQCXIH,pQCXIN and pQCXIP). Fluorescent-fusion retroviral vectors express your protein of interest fused to a fluorescent protein (Vector C: pRetroQ-AcGFP1 N1/C1 and pRetroQ-DsRed Monomer N1/C1). Knockout RNAi-Ready pSIREN-RetroQ retroviral vectors are prelinearized and ready to accept a dsDNA oligonucleotide encoding a shRNA of your choice, (Vectors D and E: RNAi-Ready pSIREN-RetroQ-DsRedExpress or pSIREN-RetroQ-ZsGreen and RNAi-Ready pSIREN-RetroQ). To express shRNA under tight, inducible control, use the knockout Tet series of retroviral vectors (Vector F: Knockout RNAi-Ready pSIREN-RetroQ-TetH and pSIREN-RetroQ TetP).

632539 pCMV DsRed-Express2 Vector 20 ug Inquire for Quotation

License Statement

ID Number  
72 Living Colors Fluorescent Protein Products: Not-For-Profit Entities: Orders may be placed in the normal manner by contacting your local representative or Takara Bio USA, Inc. Customer Service. Any and all uses of this product will be subject to the terms and conditions of the Non-Commercial Use License Agreement (the “Non-Commercial License”), a copy of which can be found below. As a condition of sale of this product to you, and prior to using this product, you must agree to the terms and conditions of the Non-Commercial License. Under the Non-Commercial License, Takara Bio USA, Inc. grants Not-For-Profit Entities a non-exclusive, non-transferable, non-sublicensable and limited license to use this product for internal, non-commercial scientific research use only. Such license specifically excludes the right to sell or otherwise transfer this product, its components or derivatives thereof to third parties. No modifications to the product may be made without express written permission from Takara Bio USA, Inc. Any other use of this product requires a different license from Takara Bio USA, Inc. For license information, please contact a licensing representative by phone at 650.919.7320 or by e-mail at licensing@takarabio.com. For-Profit Entities wishing to use this product are required to obtain a license from Takara Bio USA, Inc. For license information, please contact a licensing representative by e-mail at licensing@takarabio.com. Not-For-Profit Non-Commercial Use License: A copy of the pCMV DsRed-Express2 Vector product License Agreement can be found by clicking here.
69 DsRed Express2 is covered by US patent 8,679,749.
*

pCMV DsRed-Express2 is designed for whole cell labeling or to be used as a cotransfection marker in mammalian cells; the red fluorescence of DsRed-Express2 can be detected by fluorescence microscopy or flow cytometry, providing direct visual evidence of transfection or the ability to monitor cells after transplantation experiments in vivo. After cotransfection with pCMV DsRed-Express2 and an expression construct of interest, cells can also be sorted by flow cytometry (FACS) to enrich for transfected cells. pCMV DsRed-Express2 Vector can be transfected into mammalian cells using any standard transfection method. If required, stable transfectants can be selected using G418.

Notice to purchaser

Our products are to be used for Research Use Only. They may not be used for any other purpose, including, but not limited to, use in humans, therapeutic or diagnostic use, or commercial use of any kind. Our products may not be transferred to third parties, resold, modified for resale, or used to manufacture commercial products or to provide a service to third parties without our prior written approval.

Documents Components You May Also Like Image Data

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Robust expression of DsRed-Express2 in mouse bone marrow hematopoietic stem and progenitor cells

Robust expression of DsRed-Express2 in mouse bone marrow hematopoietic stem and progenitor cells

Robust expression of DsRed-Express and DsRed-Express2 in mouse bone marrow hematopoietic stem and progenitor cells. Mononuclear bone marrow cells were transduced with retroviral vectors encoding DsRed-Express (Panel A), DsRed-Express2 (Panel B), or EGFP (Panel C), and fluorescent cells were sorted 87 hr later. Red and green fluorescence signals were detected using the PE and FITC filter sets, respectively. The lines represent gates defined by analyzing untransduced cells.

632416 pCMV-DsRed-Express Vector 20 ug Inquire for Quotation *

pCMV-DsRed-Express is a mammalian expression vector designed for use as a cotransfection marker, together with an expression construct of interest. It constitutively expresses the red fluorescent protein DsRed-Express, which can be detected by fluorescence microscopy to provide direct visual evidence of transfection. Cells can also be sorted by flow cytometry to enrich for transfected cells.

pCMV-DsRed-Express Vector can be transfected into mammalian cells using any standard transfection method. If required, stable transfectants can be selected using G418.

Notice to purchaser

Our products are to be used for Research Use Only. They may not be used for any other purpose, including, but not limited to, use in humans, therapeutic or diagnostic use, or commercial use of any kind. Our products may not be transferred to third parties, resold, modified for resale, or used to manufacture commercial products or to provide a service to third parties without our prior written approval.

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631979 pEF1alpha-DsRed-Express2 Vector 10 ug Inquire for Quotation

License Statement

ID Number  
69 DsRed Express2 is covered by US patent 8,679,749.
72 Living Colors Fluorescent Protein Products: Not-For-Profit Entities: Orders may be placed in the normal manner by contacting your local representative or Takara Bio USA, Inc. Customer Service. Any and all uses of this product will be subject to the terms and conditions of the Non-Commercial Use License Agreement (the “Non-Commercial License”), a copy of which can be found below. As a condition of sale of this product to you, and prior to using this product, you must agree to the terms and conditions of the Non-Commercial License. Under the Non-Commercial License, Takara Bio USA, Inc. grants Not-For-Profit Entities a non-exclusive, non-transferable, non-sublicensable and limited license to use this product for internal, non-commercial scientific research use only. Such license specifically excludes the right to sell or otherwise transfer this product, its components or derivatives thereof to third parties. No modifications to the product may be made without express written permission from Takara Bio USA, Inc. Any other use of this product requires a different license from Takara Bio USA, Inc. For license information, please contact a licensing representative by phone at 650.919.7320 or by e-mail at licensing@takarabio.com. For-Profit Entities wishing to use this product are required to obtain a license from Takara Bio USA, Inc. For license information, please contact a licensing representative by e-mail at licensing@takarabio.com. Not-For-Profit Non-Commercial Use License: A copy of the pEF1alpha-DsRed-Express2 Vector product License Agreement can be found by clicking here.
*

pEF1α-DsRed-Express2 is a mammalian expression vector that constitutively expresses the red fluorescent protein DsRed-Express2, even after stable integration of the vector into the host cell genome. Stable, constitutive expression of DsRed-Express2 is driven by the human elongation factor 1 alpha (EF1α) promoter, which allows the protein to be expressed without the transgene silencing associated with CMV promoters. The vector, which lacks an MCS, is designed to be used for cell labeling or as a marker of transfection efficiency.

Notice to purchaser

Our products are to be used for Research Use Only. They may not be used for any other purpose, including, but not limited to, use in humans, therapeutic or diagnostic use, or commercial use of any kind. Our products may not be transferred to third parties, resold, modified for resale, or used to manufacture commercial products or to provide a service to third parties without our prior written approval.

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631979: pEF1alpha-DsRed-Express2 Vector

631979: pEF1alpha-DsRed-Express2 Vector

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Robust expression of DsRed-Express2 in mouse bone marrow hematopoietic stem and progenitor cells

Robust expression of DsRed-Express2 in mouse bone marrow hematopoietic stem and progenitor cells

Robust expression of DsRed-Express and DsRed-Express2 in mouse bone marrow hematopoietic stem and progenitor cells. Mononuclear bone marrow cells were transduced with retroviral vectors encoding DsRed-Express (Panel A), DsRed-Express2 (Panel B), or EGFP (Panel C), and fluorescent cells were sorted 87 hr later. Red and green fluorescence signals were detected using the PE and FITC filter sets, respectively. The lines represent gates defined by analyzing untransduced cells.

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Map schematic of the plasmid choices that are available carrying the EF1-alpha promoter

Map schematic of the plasmid choices that are available carrying the EF1-alpha promoter

Map schematic of the plasmid choices that are available carrying the EF1-alpha promoter. IRES: internal ribosome entry sequence; FP1: fluorescent protein (AcGFP1, DsRed-Monomer, or mCherry); FP2: fluorescent protein (mCherry or ZsGreen1); MCS: multiple cloning site.

*You must be logged in to a Purchasing Account in order to purchase these products online, since the purchase of these products may be restricted depending on your account type. Researchers at not-for-profit accounts receive a limited use license with their purchase of the product. Researchers at for-profit accounts must obtain a license prior to purchase. For details please contact licensing@takarabio.com.

Antibodies to GFP variants, mCherry and other fluorescent proteins Fluorescent protein antibodies
Selection guides Fluorescent protein quick guide

Overview

  • Faster maturation and reduced overlap with green emission than DsRed or DsRed2
  • DsRed-Express excitation and emission maxima are 554 and 586 nm, respectively
  • DsRed-Express2 excitation and emission maxima are 554 and 591 nm, respectively
  • Bright and highly soluble
  • Lentiviral (pLVX-) and Retroviral (pRetroX) formats are available
  • Other popular red fluorescent proteins include mCherry and tdTomato

More Information

Applications

  • Stem cell and whole-cell applications
  • Promoter studies
  • Labeling and transfection controls with CMV or EF1-alpha promoters
  • Express with another gene using bicistronic IRES vectors
References

Bevis, B. J. & Glick, B. S. Rapidly maturing variants of the Discosoma red fluorescent protein (DsRed). Nat. Biotechnol. 20, 83-7 (2002).

Strack, R. L. et al. A noncytotoxic DsRed variant for whole-cell labeling. Nat. Methods 5, 955-957 (2008).

Additional product information

Please see the product's Certificate of Analysis for information about storage conditions, product components, and technical specifications. Please see the Kit Components List to determine kit components. Certificates of Analysis and Kit Components Lists are located under the Documents tab.


Lentiviral-mediated fluorescent protein transduction

Lentiviral fluorescent proteins

We offer a wide array of premade lentivirus particles for whole-cell labeling or for labeling subcellular compartments, such as mitochondria, golgi, membranes, etc.

Whole-cell labeling Subcellular-structure labeling

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Takara Bio USA, Inc. provides kits, reagents, instruments, and services that help researchers explore questions about gene discovery, regulation, and function. As a member of the Takara Bio Group, Takara Bio USA is part of a company that holds a leadership position in the global market and is committed to improving the human condition through biotechnology. Our mission is to develop high-quality innovative tools and services to accelerate discovery.

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What does it take to generate good science? Careful planning, dedicated researchers, and the right tools. At Takara Bio, we thoughtfully develop exceptional products to tackle your most challenging research problems, and have an expert team of technical support professionals to help you along the way, all at superior value.

Explore what makes good science possible

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Takara Bio USA, Inc. provides kits, reagents, instruments, and services that help researchers explore questions about gene discovery, regulation, and function. As a member of the Takara Bio Group, Takara Bio USA is part of a company that holds a leadership position in the global market and is committed to improving the human condition through biotechnology. Our mission is to develop high-quality innovative tools and services to accelerate discovery.

FOR RESEARCH USE ONLY. NOT FOR USE IN DIAGNOSTIC PROCEDURES (EXCEPT AS SPECIFICALLY NOTED).

Clontech, TaKaRa, cellartis

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