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Molecular Biology

Watsonbio offers a broad range of gene synthesis and subcloning services. We provide reliable and flexible gene synthesis, and deliver exact plasmid tools for the downstream applications that accelerate your life science research. Our services include, but is not limited to:

Gene Synthesis

WatsonBio Sciences offers everyday low price in gene synthesis with a 100% accuracy guarantee.
Synthetic Gene
Length Standard
Delivery Time Price
< 1.5 kb 8 – 10 Business Days $ 0.21/bp
1.5 kb – 3 kb 14 – 17 Business Days $ 0.25/bp
3 kb – 5 kb 20 – 25 Business Days $ 0.34/bp
> 5 kb Custom quote Custom quote
  • The minimum charge for each DNA synthesis project is $85
  • Free subcloning into our standard vector pUC19
  • Subcloning into commercial vector is starting from $59


  • 2-5 μg (depends on vector) of lyophilized plasmid containing your desired synthetic construct
  • Certificate of Analysis (COA) including restriction digest
  • Sequence trace data with alignment

For orders and technical questions, please contact us via

Custom Cloning

  • Cloning/subcloning from gDNA, mRNA, BACs, PACs and other large constructs
  • N-terminal and C-terminal tag integration
  • Vector switch, enzyme site adoption and multiclonal site changes
  • High-throughput cloning via TOPO® cloning and Gateway® technology
  • siRNA expression vector design and construction
  • Recombinant vectors construction

Plasmid Preparation

Start your experiments right away by avoiding time consuming plasmid DNA amplification. Our plasmid preparation service offers the exact quantity and quality of plasmid DNA you need: from micrograms to grams, and from standard to ultrapure (Endotoxin removal/EndoFree).
  • Quality and fast delivery
  • Scales from microgram to gram quantities (Mini, Midi, Maxi, Giga, Mega)
  • Available in endotoxin free quality