Please note: Your browser does not support the features used on Addgene's website. You may not be able to create an account or request plasmids through this website until you upgrade your browser. Learn more

Please note: Your browser does not fully support some of the features used on Addgene's website. If you run into any problems registering, depositing, or ordering please contact us at Learn more

(Bacterial strain #34929)

No maps are available for this item.
Add to Cart
Available to Academic and Nonprofits Only


Growth in Bacteria

  • Bacterial Resistance(s)
  • Growth Temperature
  • Growth Strain(s)
  • Copy number

Sequence Information

  • Depositor Sequences
  • Addgene Sequences

Full plasmid sequence is available only if provided by the depositing laboratory.

Resource Information

  • Terms and Licenses

Depositor Comments

To prevent possible enzymatic dephosphorylation of O-phospho-L-serine (Sep) in vivo, the gene encoding phosphoserine phosphatase (serB), which catalyzes the last step in serine biosynthesis, was deleted from Escherichia coli strain BL21. Markerless gene deletions were carried out using a λ-red and FLP recombinase-based gene knockout strategy.

How to cite this plasmid

These plasmids were created by your colleagues. Please acknowledge the Principal Investigator, cite the article in which the plasmids were described, and include Addgene in the Materials and Methods of your future publications.

  • For your Materials & Methods section:

    BL21∆serB was a gift from Jesse Rinehart & Dieter Soll (Addgene plasmid # 34929)
  • For your References section:

    Expanding the genetic code of Escherichia coli with phosphoserine. Park HS, Hohn MJ, Umehara T, Guo LT, Osborne EM, Benner J, Noren CJ, Rinehart J, Soll D. Science. 2011 Aug 26;333(6046):1151-4. 10.1126/science.1207203 PubMed 21868676