Fragments directly synthesized up to 900 bp.
One Fragment. No Workarounds. Shipping Time Guaranteed.
Ansa offers sequence-verified linear double-stranded DNA fragments designed to integrate seamlessly into modern molecular biology workflows. These DNA fragments are easy to use for cloning, assembly, validation, and downstream experimentation, helping researchers move faster without sacrificing quality.
Powered by Ansa’s enzyme-driven DNA synthesis process, we can synthesize DNA fragments up to 900 bp from single oligonucleotides. This enables the production of high-quality synthetic DNA fragments that maintain a low error rate, even for sequences that challenge traditional synthesis methods.
Fragment Adapters
Ansa’s gene fragments are shipped with Forward and Reverse Adapters used to amplify the sequence and produce dsDNA. These Adapters can be removed based on each user’s needs by adding cut sites to the ends of the target sequence, or by using PCR amplification with sequence-specific primers.
Designed for Complex Sequences
Typical use cases include DNA fragments with:
- High GC content
- Repetitive or structured regions
- Challenging sequence motifs prone to synthesis errors
Our synthesis process is optimized to handle these conditions while maintaining sequence integrity, high quality, and consistent performance across fragment types.
Ansa ships complex DNA fragments in under a week, fragments that would otherwise be unavailable or take months to receive as clonal products from other vendors.
DNA Fragments
200 - 900 bp
| Sequence Length | 200 - 600 bp | 601 - 900 bp |
| GC Content | 6% - 90% | |
| A or T Homopolymer | ≤ 140 bp | |
| G or C homopolymers | ≤ 20 bp | |
| Short tandem repeats | ≤ 10 repeat units | |
| Inverted repeats | ≤ 50 bp per side | |
| Error rate | 1:1000 (typical) | |
| Typical yield | 500 ng | |
| Pricing | $150 per fragment | $190 per fragment |
| Guaranteed Shipping | In as little as 4 business days | |
All products are manufactured in the USA and shipped globally. Biosecurity screening is done in accordance with the guidance of US Department of Health and Human Services’ Screening Framework Guidance for Providers and Users of Synthetic Nucleic Acids before being synthesized.
Let us get you the complex DNA you need to achieve new scientific breakthroughs.
Ansa On-Time Guarantee
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What types of DNA products does Ansa offer, and how fast can I receive them?
Ansa provides three core products with delivery times starting as follows:
- DNA Fragments (200-900 bp): Starting at 4 business days
- Clonal DNA (100 bp – 7.5 kb): Starting at 11 business days
- Clonal DNA (7.5–50 kb): Starting at 25 business days
Does Ansa offer gene fragment synthesis?
Yes. Ansa provides custom gene fragment synthesis in the form of sequence-verified linear double-stranded DNA fragments up to 900 bp. These fragments are ideal for gene assembly, cloning workflows, sequence validation, and proof-of-concept experiments.
How do I order custom gene synthesis from Ansa?
You can request a quote or place an order directly via the Ansa eCommerce portal. Simply create an account, provide your desired DNA sequences and project specifications, and you will receive a quote and committed delivery date within minutes.