Biosafety classification is based on U.S. Public Health Service Guidelines, it is the responsibility of the customer to ensure that their facilities comply with biosafety regulations for their own country.
Felton J, et al. Mutations in two unlinked genes are required to produce asparagine auxotrophy in Escherichia coli. J. Bacteriol. 142: 221-228, 1980. PubMed: 6102983
Cedar H, Schwartz JH. The asparagine synthetase of Escherhic coli. I. Biosynthetic role of the enzyme, purification, and characterization of the reaction products. J. Biol. Chem. 244: 4112-4127, 1969. PubMed: 4895361
derived from Escherichia coli strain K-12
