Reference

Search for REF=[4472].

4472
Vining, L. C., Jensen, S. E., Westlake, D. W. S., Aharonowitz, Y. and Wolfe, S.
Cephamycin production and isopenicillin N synthetase activity in cultures of Streptomyces clavuligerus.
Appl. Microbiol. Biotechnol. 27: 240-246, 1987.
DOI: 10.1007/BF00252925.