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Genes and Gene Fragments

DNA fragments and cloned genes for synthetic biology and molecular biology applications. IDT offers a variety of reliable solutions to meet your experimental needs.


IDT provides high-quality, high-fidelity genes and gene fragments, available as single- or double-stranded DNA. Genes and gene fragments are suited for a variety of workflows and applications including protein evolution, gene construction, antibody engineering, and more.

  • The trusted solution for purity and quality
  • Adaptable and flexible to fit your workflow and budget
  • Reliable turnaround time

Fueling the build phase for the Design-Built-Test cycle, IDT Gene and Gene Fragment products empower researchers to construct their systems to achieve their desired outcome.

Use the table below to help choose the best DNA product for your experiment.

 eBlocks™ Gene FragmentsgBlocks™ Gene FragmentsgBlocks HiFi Gene FragmentsGene
Megamer™ Fragments
CategoryLinear dsDNA fragmentsLinear dsDNA fragmentsLinear dsDNA fragmentsdsDNA cloned in a plasmidssDNA fragments
Available lengths (bp)300–1500125–30001000–300025–5000+201–2000
Median error rate1:50001:50001:12,000N/A*1:12,000
Estimated shipping time (business days)
Yield200 ng250–1000 ng1000 ng4 μg3 μg
ApplicationHigh-throughput screening and antibody discoveryGene construction and controlsPathway design and large constructsProtein expression and large constructsCRISPR-mediated genome editing

*Clonal genes contain no mutations present above IDT’s sequencer-noise threshold.
**This estimated shipping time is for tube only. Plates estimated ship date is 10–15 business days.

*RUO—For research use only. Not for use in diagnostic procedures. Unless otherwise agreed to in writing, IDT does not intend for these products to be used in clinical applications and does not warrant their fitness or suitability for any clinical diagnostic use. Purchaser is solely responsible for all decisions regarding the use of these products and any associated regulatory or legal obligations.