An official website of the United States government
Here's how you know
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
(A) IR spectra of a pure sample of holomycin (solid line) and the compound purified from cultures in TSB medium of the S. clavuligerus ccaR::aph strain (dotted lane). (B) Mass spectra of the purified compound and chemical structure of holomycin.