Nucleotide sequence of the
ampicillin resistance gene( beta-lactamase)
of Escherichia coli
plasmid pBR322 (Genome:
4361 bases; Accession:
J01749 GI:208958)
Sutcliffe,J.G., Nucleotide sequence of the
ampicillin resistance gene of Escherichia coli plasmid pBR322. Proc.
Natl. Acad. Sci. U.S.A. 75 (8), 3737-3741 (1978); MEDLINE 79012484