Abstract
The polypeptide product of the lon (capR) gene was identified and partially purified from bacterial strains homozygous for the capR+ or capR9 (ochre mutation) alleles cloned with pSC101. A 94,000-dalton polypeptide was identified as the lon (capR) gene product. Studies of binding to DNA cellulose columns and nitrocellulose filters indicate that the capR+ and capR9 proteins bind DNA.
Keywords: plasmids, radiation sensitivity, cell division, proteolysis, capsular polysaccharide
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