Custom Gene Synthesis Services, Long DNA Sequences

OVERVIEW

Some sequences are too difficult, too flexible, or too customized for standard synthesis platforms. High GC content, repetitive regions, unstable motifs, native sequences, and specialized vector requirements can often limit traditional synthesis workflows.

Gene Universal’s Custom Gene Synthesis service is built for researchers who need more control, greater flexibility, and reliable delivery of challenging constructs — without unnecessary limitations, rigid design restrictions, or hidden costs. From customized cloning strategies to complex sequence synthesis, we provide tailored solutions designed around your specific research needs.

Why Researchers Choose Gene Universal

Complex Sequences Welcome

High GC regions, repetitive elements, unstable fragments, and challenging constructs — we handle sequences many providers may reject or heavily restrict.
Codon Optimization — Optional, Not Mandatory

Keep your native sequence exactly as designed, or choose customized codon optimization based on your expression system and project goals.
More Vector Flexibility

A wider range of cloning vector options to better match your downstream workflow, screening strategy, and expression requirements.
Transparent Pricing

For most standard and moderately complex sequences, there are no additional complexity surcharges.
Scientist-to-Scientist Support

Work directly with experienced technical specialists to optimize construct design and project success.
Proven Performance at Scale

Gene Universal delivers reliable, large-scale results with a 99%+ success rate across 100,000+ projects worldwide.

chain Service Procedure

Sequence
optimization
Oligo synthesis
Gene assemble
Cloning into
Vector
Sequence verification
Fast
Delivery

SERVICE DETAILS

Sequence Length	Delivery Time	Price
<= 500bp	5 ~ 8 Business days	$99/Gene
501bp ~ 1500bp	8 ~ 10 Business days	$0.19/ bp
1501bp ~ 3000bp	10 ~ 14 Business days	$0.19/ bp
3001bp ~ 5000bp	16 ~ 24 Business days	$0.23/ bp
> 5000bp	Inquire	Inquire

chain Exclusive Limited-Time Discounts Available Now!

Original Discount	Current Discount	First Order Special	Effective Date
15%	20%	50%	04/01/2026-06/30/2026

More promotions, please check here

Vector Information

· Our standard vector is PUC57_BsaI_Free / pBlueScript II SK(+)

Synthetic genes will be cloned into this vector unless otherwise specified

· NEW! Cloning into our in-stock vectors is also free. Browse and select your vector now.

· For custom vectors, please provide the vector sequence or map. We now offer complimentary, secure storage of your custom vectors. Cloning into archived vectors is available for only $15, bundled with future gene synthesis orders

Standard Deliverables

·2-5 µg purified plasmid DNA, available in single tubes or plates (primarily for large orders).

·Plasmid Map (Electronic)

·Sanger Sequencing Files (Electronic).

·COA

Special notice: We guarantee that our customers' gene sequences and related information will not be released or utilized in any form.

Vector Selection Guide Order Now

GENE SYNTHESIS FAQs