Toolbox

From designing an inducible promoter to fabricating an adeno-associated virus for gene knock-down, Doulix offers you a complete set of tools for your synthetic biology application.

Single sequence

Single sequence

From simple promoters to polycistronic operons, BIOMODULEs are the building blocks of DOULIX. Start designing now!

max length < 25 kbp
Biomodule design tools

Biomodule design tools

Biomodules are Doulix design building blocks. Biomodules are linear double-stranded DNA parts. As short as a T7 promoter or as long as an entire metabolic pathway, biomodule are your DNA Lego bricks , you can assemble to build your constructs.

Cloned fragments synthesis

Cloned fragments synthesis

Save time manual cloning with custom gene cloning of inserts up to 7.5kbp. Pick from a library of application-ready, public backbones, or use your own and store your vectors with us for easy reuse.

from 0.25 to 7.5 kbp
dsDNA Fragments synthesis

dsDNA Fragments synthesis

Linear, double stranded DNA fragments up to 2.5 kbp, optimised for assembly and with the lowest error rates in the industry.


from 0.25 to 2.5 kbp
Custom constructs synthesis

Custom constructs synthesis

Build more, test more and make faster breakthroughs with our custom plasmid assembly service. Skip straight to expression ready, multi-gene plasmids up to 35kbp of greater complexity than ever before.

from 7.5 to 35 kbp
Construct design tools

Construct design tools

Building constructs and vectors has never been easier. Quickly assemble you DNA parts into constructs using biomodules and then review and edit your sequence usign a powerfull sequence editor.

More Biomodules design tools

More Biomodules design tools

Explore Doulix collection of tools to design biomodules,
Including linear backbone upload and iGEM biobrick designer.

Plasmid onboarding

Plasmid onboarding

Import your plasmid, vector, phagemid or any circular dsDNA construct into DOULIX and start working right away.

Constructs collection

Constructs collection

Your collection of private and public constructs. Search, share, edit and annotate thousands of constructs using Doulix constrcut designer.