A study by polyacrylamide-gel electrophoresis of the effect of proteolysis on Micrococcus lysodeikticus polynucleotide phosphorylase.
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ABSTRACT: 1. Trypsin digestion of Micrococcus lysodeikticus polynucleotide phosphorylase (nucleoside diphosphate-polynucleotide nucleotidyltransferase) causes a progressive increase in electrophoretic mobility in polyacrylamide gels of the single active degradation product. 2. A marked increase in primer requirement for CDP polymerization occurs before a more mobile product is formed. 3. alpha-Chymotrypsin digestion yields a product that separates into several active species on polyacrylamide-gel electrophoretograms. 4. No separation of ADP-and CDP-polymerization activities occurs during electrophoresis after either trypsin or alpha-chymotrypsin treatment.
SUBMITTER: Fitt PS
PROVIDER: S-EPMC1187375 | biostudies-other | 1968 Dec
REPOSITORIES: biostudies-other
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