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  • ‹ Back to In-Fusion Cloning and competition
  • In-Fusion Snap Assembly vs. GeneArt Gibson Assembly HiFi
  • In-Fusion Snap Assembly vs. NEBuilder HiFi
  • Sequence accuracy in seamless cloning
  • Choosing a seamless cloning method
  • Improving background over Gibson Assembly
  • A successful alternative to ligation cloning
  • Single- and multiple-insert cloning
  • Easy cloning into lentiviral vectors
  • Outperforming TOPO cloning
In-Fusion Cloning Product info: In-Fusion Snap Assembly kits
Home › Learning centers › Cloning › In-Fusion Cloning general information › In-Fusion Cloning and competition › In-Fusion Snap Assembly vs. NEBuilder HiFi

In-Fusion Cloning general information

  • In-Fusion Cloning overview
  • In-Fusion Cloning guide
  • In-Fusion Cloning and competition
    • In-Fusion Snap Assembly vs. GeneArt Gibson Assembly HiFi
    • In-Fusion Snap Assembly vs. NEBuilder HiFi
    • Sequence accuracy in seamless cloning
    • Choosing a seamless cloning method
    • Improving background over Gibson Assembly
    • A successful alternative to ligation cloning
    • Single- and multiple-insert cloning
    • Easy cloning into lentiviral vectors
    • Outperforming TOPO cloning
  • In-Fusion Cloning citations
  • Stellar Competent Cells product overview and performance data
  • EcoDry reagents and sustainability
New products
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In-Fusion Cloning Product info: In-Fusion Snap Assembly kits
Tech Note

In-Fusion Snap Assembly: generate seamless constructs with higher cloning efficiency

  • Seamless cloning enables directional, single- or multiple-insert cloning without scar sequences
  • In-Fusion Snap Assembly outperforms In-Fusion HD in terms of efficiency and consistency while maintaining exceptionally high accuracy
  • In-Fusion Snap Assembly leads to more colonies than NEBuilder HiFi DNA Assembly

Featured products: ♦ In-Fusion Snap Assembly Master Mix ♦ Stellar Competent Cells ♦ In-Fusion HD Cloning Kit

Introduction Results Conclusions Methods References

Introduction  

In-Fusion Cloning technology allows ligation-independent, directional cloning of PCR products into any vector, at any site of linearization (Figure 1). This seamless cloning reaction takes as little as 15 minutes and enables you to build your final constructs in just one step, even those of high complexity (Chen et al. 2014, Lestini et al. 2013).

Figure 1. In-Fusion Cloning protocol. Schematic of the standard workflow for all In-Fusion Cloning kits.

For many years, In-Fusion HD Cloning kits have enabled countless scientists to push the boundaries of their research with streamlined technology that overcomes a multitude of cloning obstacles: solving synthesis challenges with easy multiple-insert cloning, successfully cloning directly into large expression vectors, and improving their cloning throughput for antibody development.

As we continually strive to provide researchers with a better lab experience through robust, streamlined reagents and tools, our scientists once again focused in on cloning, a critical starting point for many applications. These efforts brought forth In-Fusion Snap Assembly—a new cloning master mix that offers improvements in efficiency and consistency, while still keeping all the renowned benefits of In-Fusion HD Cloning kits.

A tried-and-true workflow

In-Fusion Snap Assembly follows the same protocol as In-Fusion HD kits, with the cloning master mix fusing PCR-generated sequences and linearized vectors efficiently and precisely, utilizing a 15-bp overlap at their ends (Figure 1). The In-Fusion master mix removes nucleotides from the 3' end of linear DNA strands, allowing complementary base pairs between two pieces of DNA to anneal and fragments to join, in just 15 minutes. The plasmid is then used to transform competent cells, where covalent bonds will form between the DNA fragments. Over 95% of the colonies obtained with this protocol will contain the right construct.

Results  

Comparison with In-Fusion HD

Our scientists compared the performance of In-Fusion Snap Assembly and In-Fusion HD kits side by side for a wide range of applications. PCR primers were identical since both technologies use the same protocol. The high-fidelity PCR enzyme, DNA cleanup kit, and competent cells were likewise the same; only the cloning master mix differed between the two. After transformation and plating, 10 colonies were analyzed by Sanger sequencing to determine the cloning accuracy. Each experiment was done in triplicate.

Both technologies lead to thousands of colonies and 90–100% accuracy when cloning a single fragment in a regular or an adenovirus vector, doing site-directed mutagenesis, or deleting an entire sequence of a vector (data not shown).

The most significant difference in performance was observed when cloning 5 different inserts (ranging in size from 405 bp to 1,005 bp) into a 2.7-kb vector previously linearized by inverse PCR. In-Fusion Snap Assembly resulted in up to 4X more colonies than In-Fusion HD, with an accuracy >90% (Figure 2). Lot-to-lot consistency was also higher with In-Fusion Snap Assembly than with In-Fusion HD (data not shown).

Figure 2. Performance comparison between In-Fusion HD and In-Fusion Snap Assembly. Five different inserts (ranging in size from 405 bp to 1,005 bp) were simultaneously cloned into a 2.7-kb vector previously linearized by inverse PCR using In-Fusion HD and In-Fusion Snap Assembly. Each cloning reaction was performed in triplicate. Amplification primers and all reagents, except for the cloning master mixes, were the same between the two systems. After transformation and plating, 10 colonies from each replicate were analyzed by Sanger sequencing to determine the cloning accuracy. In-Fusion Snap Assembly yielded 4X more colonies than In-Fusion HD while maintaining high cloning accuracy.

 

In addition to our own in-house experiments, we are pleased to see that results from outside researchers have also been successful:

The [In-Fusion Snap Assembly] worked beautifully. I had a really tricky plasmid to clone (a lot of repetitive promoters). Even though I only did a 1-piece insertion it worked way better than [In-Fusion HD] (which I'm obsessed with). I ran an easier [In-Fusion Snap Assembly reaction] last night with a digested backbone and had a lawn of colonies (with very low background). [...] I'm very pleased with the results."

—Emma Chory, MIT

Comparison with NEBuilder HiFi

The performance of NEBuilder HiFi DNA Assembly and In-Fusion Snap Assembly were tested side-by-side with vectors linearized by inverse PCR or restriction digest. For each experiment, PCR primers for the inserts and vector (when applicable) were designed according to each product's specifications, using either our online primer design tool or SnapGene software. After transformation and plating, 20 colonies were analyzed by either Sanger sequencing or colony PCR to determine the cloning accuracy. Each experiment was done in triplicate.

When using inverse PCR for vector linearization, In-Fusion Snap Assembly led to twice as many colonies as NEBuilder HiFi for cloning a single 3.8-kb insert or a 34.2-kb adenovirus insert into a 2.7-kb vector, with an accuracy >95% (Figure 3).

Figure 3. Performance comparison between In-Fusion Snap Assembly and NEBuilder HiFi using inverse PCR. A single 3.8-kb insert (Panel A) or a 34.2-kb adenovirus insert (Panel B) was cloned into a 2.7-kb vector which was linearized via inverse PCR. These cloning reactions were performed in triplicate with both In-Fusion Snap Assembly and NEBuilder HiFi. Primers were designed according to the manufacturers' specifications. After transformation and plating, 20 colonies from each replicate were analyzed by Sanger sequencing (for the 3.8-kb insert) or colony PCR (for the adenovirus insert) to determine the cloning accuracy. In-Fusion Snap Assembly yielded 2X more colonies than NEBuilder HiFi.

When the vector was linearized by digestion with a single restriction enzyme, In-Fusion Snap Assembly led to significant improvements over NEBuilder HiFi, yielding 5X as many colonies for fragments with 5' overhangs, 8X as many colonies for fragments with blunt ends, and 16X as many colonies for fragments with 3' overhangs. The higher cloning efficiency seen with In-Fusion Snap Assembly was also accompanied by a cloning accuracy >95% (Figure 4).

Figure 4. Performance comparison between In-Fusion Snap Assembly and NEBuilder HiFi using restriction digest. A single 3.8-kb insert was cloned into a standard cloning vector linearized by restriction digests to create 5' overhangs (Panel A), blunt ends (Panel B), or 3' overhangs (Panel C). These cloning reactions were performed in triplicate with both In-Fusion Snap Assembly and NEBuilder HiFi. Primers were designed according to the manufacturers' specifications. After transformation and plating, 20 colonies from each replicate were analyzed by Sanger sequencing to determine the cloning accuracy. In-Fusion Snap Assembly yielded between 5X and 16X more colonies than NEBuilder HiFi, depending on the type of linearized vector ends.

Conclusions  

In-Fusion Snap Assembly outperforms both In-Fusion HD and the competition

In-Fusion Snap Assembly is a clear upgrade compared to existing seamless cloning methods. In-Fusion Snap Assembly provided significantly more colonies for multiple insert cloning when compared to In-Fusion HD. Results were also more consistent, guaranteeing reliable data for more complicated and/or higher-throughput cloning projects. Scientists who put this new technology to the test saw satisfying results with their tricky cloning experiments and were able to unlock doors that were too difficult to open until now.

In-Fusion Snap Assembly technology was the clear winner over NEBuilder HiFi DNA Assembly in terms of overall efficiency, yielding up to 16X more colonies, with a cloning accuracy above 95%. This system enables researchers to obtain the right clone, every time, regardless of the application. Moreover, the recommended incubation time with In-Fusion Snap Assembly is 1/4 that of NEBuilder HiFi when cloning multiple inserts, allowing for an overall shorter protocol. In-Fusion Snap Assembly is also more versatile; one kit can be used for single- or multiple-insert cloning, as well as site-directed mutagenesis. Scientists can expand their experiments without the hassle of buying different products for different applications.

Besides being available in a wide range of master mix reaction sizes, In-Fusion Snap Assembly is also available in bundles, with everything needed for a cloning experiment, including high-fidelity PCR polymerase, cloning master mix, competent cells, and reagents to treat PCR products prior to cloning. Where the competing technology provides the bare minimum, In-Fusion Snap Assembly bundles fully equip the researcher for all steps, ensuring a high out-of-the-box success rate and allowing a direct value assessment of the true total cost of the experiment.

Methods  

In-Fusion Snap Assembly vs. In-Fusion HD

Five different inserts (ranging in size from 405 bp to 1,005 bp) were simultaneously cloned into a 2.7-kb vector previously linearized by inverse PCR using In-Fusion HD and In-Fusion Snap Assembly. Each cloning reaction was performed in triplicate. Amplification primers and all reagents, except for the cloning master mixes, were the same between the two systems. Stellar Competent Cells were transformed with each cloning reaction. Transformed cells were plated on LB plates with ampicillin. Cloning accuracy was determined via Sanger sequencing analysis of 10 colonies from each replicate. All protocols were performed according to each product's user manual. All primers were designed with our online primer design tool.

In-Fusion Snap Assembly vs. NEBuilder HiFi DNA Assembly

A single 3.8-kb insert or 34.2-kb adenovirus insert was cloned into a 2.7-kb vector linearized via inverse PCR. Cloning reactions were performed in triplicate with both In-Fusion Snap Assembly and NEBuilder HiFi DNA Assembly. Primers were designed according to the manufacturers' specifications. Stellar Competent Cells were transformed with In-Fusion Snap Assembly cloning reactions. NEB 5-alpha Competent E. coli (High Efficiency) cells were transformed with NEBuilder HiFi DNA Assembly cloning reactions. All transformed cells were plated on LB plates with ampicillin. Cloning accuracy was determined via Sanger sequencing analysis (for the 3.8-kb insert) or colony PCR (for the adenovirus insert) of 20 colonies from each replicate.

To assess performance when using restriction enzymes for vector linearization, a single 3.8-kb insert was cloned into a standard cloning vector linearized by HindIII to create 5' overhangs, SmaI to create blunt ends, or PstI to create 3' overhangs. These cloning reactions were performed in triplicate with both In-Fusion Snap Assembly and NEBuilder HiFi DNA Assembly. Primers were designed according to the manufacturers' specifications. Stellar Competent Cells were transformed with In-Fusion Snap Assembly cloning reactions. NEB 5-alpha Competent E. coli (High Efficiency) cells were transformed with NEBuilder HiFi DNA Assembly cloning reactions. All transformed cells were plated on LB plates with ampicillin. Cloning accuracy was determined via Sanger sequencing analysis of 20 colonies from each replicate.

All protocols were performed according to each product's user manual. For each experiment, PCR primers for the inserts and vector (when applicable) were designed according to each product's specifications, using either our online primer design tool (for In-Fusion Snap Assembly) or SnapGene software (for NEBuilder HiFi DNA Assembly).

References  

Chen, C. G., Fabri, L. J., Wilson, M. J. & Panousis, C. One-step zero-background IgG reformatting of phage-displayed antibody fragments enabling rapid and high-throughput lead identification. Nucleic Acids Res. 42, e26–e26 (2014).

Lestini, R. et al. Intracellular dynamics of archaeal FANCM homologue Hef in response to halted DNA replication. Nucleic Acids Res. 41, 10358–70 (2013).

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In-Fusion Snap Assembly Master Mix is designed for fast, directional cloning of one or more fragments of DNA into any vector. This proprietary master mix fuses DNA fragments (e.g., PCR-generated sequences and linearized vectors) efficiently and precisely by recognizing a 15-bp overlap at their ends. This 15-bp overlap can be engineered into the primers designed for PCR amplification of the desired sequences. In Fusion Snap Assembly Master Mix offers high efficiency, even for applications that can be challenging, including the cloning of long fragments, short oligonucleotides, and multiple fragments.

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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Performance comparison between In-Fusion Snap Assembly and NEBuilder HiFi using inverse PCR.

Performance comparison between In-Fusion Snap Assembly and NEBuilder HiFi using inverse PCR.

Performance comparison between In-Fusion Snap Assembly and NEBuilder HiFi using inverse PCR. A single 3.8-kb insert (Panel A) or a 34.2-kb adenovirus insert (Panel B) was cloned into a 2.7-kb vector which was linearized via inverse PCR. These cloning reactions were performed in triplicate with both In-Fusion Snap Assembly and NEBuilder HiFi. Primers were designed according to the manufacturers' specifications. After transformation and plating, 20 colonies from each replicate were analyzed by Sanger sequencing (for the 3.8-kb insert) or colony PCR (for the adenovirus insert) to determine the cloning accuracy. In-Fusion Snap Assembly yielded 2X more colonies than NEBuilder HiFi.

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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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In-Fusion Snap Assembly Master Mix is designed for fast, directional cloning of one or more fragments of DNA into any vector. This proprietary master mix fuses DNA fragments (e.g., PCR-generated sequences and linearized vectors) efficiently and precisely by recognizing a 15-bp overlap at their ends. This 15-bp overlap can be engineered into the primers designed for PCR amplification of the desired sequences. In Fusion Snap Assembly Master Mix offers high efficiency, even for applications that can be challenging, including the cloning of long fragments, short oligonucleotides, and multiple fragments.

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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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Performance comparison between In-Fusion Snap Assembly and NEBuilder HiFi using inverse PCR. A single 3.8-kb insert (Panel A) or a 34.2-kb adenovirus insert (Panel B) was cloned into a 2.7-kb vector which was linearized via inverse PCR. These cloning reactions were performed in triplicate with both In-Fusion Snap Assembly and NEBuilder HiFi. Primers were designed according to the manufacturers' specifications. After transformation and plating, 20 colonies from each replicate were analyzed by Sanger sequencing (for the 3.8-kb insert) or colony PCR (for the adenovirus insert) to determine the cloning accuracy. In-Fusion Snap Assembly yielded 2X more colonies than NEBuilder HiFi.

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638944 In-Fusion® Snap Assembly Master Mix 1,000 Rxns Inquire for Quotation *

In-Fusion Snap Assembly Master Mix is designed for fast, directional cloning of one or more fragments of DNA into any vector. This proprietary master mix fuses DNA fragments (e.g., PCR-generated sequences and linearized vectors) efficiently and precisely by recognizing a 15-bp overlap at their ends. This 15-bp overlap can be engineered into the primers designed for PCR amplification of the desired sequences. In Fusion Snap Assembly Master Mix offers high efficiency, even for applications that can be challenging, including the cloning of long fragments, short oligonucleotides, and multiple fragments.

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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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Performance comparison between In-Fusion Snap Assembly and NEBuilder HiFi using inverse PCR.

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Performance comparison between In-Fusion Snap Assembly and NEBuilder HiFi using inverse PCR. A single 3.8-kb insert (Panel A) or a 34.2-kb adenovirus insert (Panel B) was cloned into a 2.7-kb vector which was linearized via inverse PCR. These cloning reactions were performed in triplicate with both In-Fusion Snap Assembly and NEBuilder HiFi. Primers were designed according to the manufacturers' specifications. After transformation and plating, 20 colonies from each replicate were analyzed by Sanger sequencing (for the 3.8-kb insert) or colony PCR (for the adenovirus insert) to determine the cloning accuracy. In-Fusion Snap Assembly yielded 2X more colonies than NEBuilder HiFi.

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License Statement

ID Number  
M54 This product is covered by the claims of U.S. Patent Nos. 7,704,713 and its foreign counterparts. 

In-Fusion Snap Assembly Master Mix enables high-efficiency, high-fidelity, directional cloning of one or more PCR fragments into any vector. In addition to the cloning kit, this package includes:

- A NucleoSpin Gel and PCR Clean-Up kit: This kit is suitable for gel extraction as well as PCR purification. Kits are provided with individual purification columns.

- Stellar Competent Cells: High-efficiency competent cells are essential to the success of In-Fusion Cloning. An E. coli HST08 strain is included that provides high transformation efficiency (greater than 5 x 10^8 cfu/µg) and complements the efficiency of all In-Fusion Snap Assembly kits. Cells are provided in 100-μl aliquots in individual tubes.

- PrimeSTAR Max DNA Polymerase: This convenient 2X liquid master mix offers exceptionally accurate, efficient, and fast DNA amplification. The premix contains dNTPs and an optimized buffer, allows rapid setup of PCR reactions, and facilitates successful cloning. The polymerase master mix is provided in 625-μl aliquots.

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 Image Data

Back

Performance comparison between In-Fusion Snap Assembly and NEBuilder HiFi using inverse PCR.

Performance comparison between In-Fusion Snap Assembly and NEBuilder HiFi using inverse PCR.

Performance comparison between In-Fusion Snap Assembly and NEBuilder HiFi using inverse PCR. A single 3.8-kb insert (Panel A) or a 34.2-kb adenovirus insert (Panel B) was cloned into a 2.7-kb vector which was linearized via inverse PCR. These cloning reactions were performed in triplicate with both In-Fusion Snap Assembly and NEBuilder HiFi. Primers were designed according to the manufacturers' specifications. After transformation and plating, 20 colonies from each replicate were analyzed by Sanger sequencing (for the 3.8-kb insert) or colony PCR (for the adenovirus insert) to determine the cloning accuracy. In-Fusion Snap Assembly yielded 2X more colonies than NEBuilder HiFi.

Back

The In-Fusion cloning protocol

The In-Fusion cloning protocol

The In-Fusion cloning protocol.

Back

638945: In-Fusion Snap Assembly Starter Bundle

638945: In-Fusion Snap Assembly Starter Bundle
638946 In-Fusion® Snap Assembly Value Bundle 50 Rxns USD $1063.00

License Statement

ID Number  
M54 This product is covered by the claims of U.S. Patent Nos. 7,704,713 and its foreign counterparts. 

In-Fusion Snap Assembly Master Mix enables high-efficiency, high-fidelity, directional cloning of one or more PCR fragments into any vector. In addition to the cloning kit, this package includes:

- A NucleoSpin Gel and PCR Clean-Up kit: This kit is suitable for gel extraction as well as PCR purification. Kits are provided with individual purification columns.

- Stellar Competent Cells: High-efficiency competent cells are essential to the success of In-Fusion Cloning. An E. coli HST08 strain is included that provides high transformation efficiency (greater than 5 x 10^8 cfu/µg) and complements the efficiency of all In-Fusion Snap Assembly kits. Cells are provided in 100-μl aliquots in individual tubes.

- PrimeSTAR Max DNA Polymerase: This convenient 2X liquid master mix offers exceptionally accurate, efficient, and fast DNA amplification. The premix contains dNTPs and an optimized buffer, allows rapid setup of PCR reactions, and facilitates successful cloning. The polymerase master mix is provided in 625-μl aliquots.

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 Image Data

Back

Performance comparison between In-Fusion Snap Assembly and NEBuilder HiFi using inverse PCR.

Performance comparison between In-Fusion Snap Assembly and NEBuilder HiFi using inverse PCR.

Performance comparison between In-Fusion Snap Assembly and NEBuilder HiFi using inverse PCR. A single 3.8-kb insert (Panel A) or a 34.2-kb adenovirus insert (Panel B) was cloned into a 2.7-kb vector which was linearized via inverse PCR. These cloning reactions were performed in triplicate with both In-Fusion Snap Assembly and NEBuilder HiFi. Primers were designed according to the manufacturers' specifications. After transformation and plating, 20 colonies from each replicate were analyzed by Sanger sequencing (for the 3.8-kb insert) or colony PCR (for the adenovirus insert) to determine the cloning accuracy. In-Fusion Snap Assembly yielded 2X more colonies than NEBuilder HiFi.

Back

The In-Fusion cloning protocol

The In-Fusion cloning protocol

The In-Fusion cloning protocol.

Back

638946: In-Fusion Snap Assembly Value Bundle

638946: In-Fusion Snap Assembly Value Bundle


In-Fusion Cloning mechanism

Clone any insert, with any vector, at any site. In-Fusion seamless cloning technology makes it easy! Here’s how.

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In-Fusion Cloning mechanism

Clone any insert, with any vector, at any site. In-Fusion seamless cloning technology makes it easy! Here’s how.

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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, TBUSA 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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