Take the 2-minute tour ×
Biology Stack Exchange is a question and answer site for biology researchers, academics, and students. It's 100% free, no registration required.

For interfacial studies, I would like to build an alanine scanning library for one of my proteins examining 20 sites. I will ultimately express the gene using E.coli cell-free protein synthesis. I already have the template gene which was originally built using PCR assembly. Now, what's the best way to build a scanning library?

share|improve this question
do you mean, how do i decide which amino acids to include in the alanine scan or how do i create the library of alanine mutants? –  shigeta May 17 '12 at 19:54
@shigeta, definitely more "how". –  bobthejoe May 17 '12 at 21:28
genscript.com/alanine_scanning.html genscript has some pages to help you reason through the design. Myself I'm not sure, but it looks like it takes quite a lot of oligos to say the least... –  shigeta May 18 '12 at 6:08
Are you still interested in the answer of this question? –  Gergana Vandova Feb 25 at 20:25
@GerganaVandova, not really but it might be of interest to the broader community. –  bobthejoe Mar 3 at 21:08
add comment

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.