Internation of zinc ions with DNA-dependent RNA polymerases A, B and C isolated from calf thymus

Abstract

Purified DNA-dependent RNA polymerases A, B and C isolated from calf thymus contain a significant amount of zinc. Atomic absorption spectroscopy revealed the presence of 6.7, 5.35 and 2.6–4.1 g-atoms of zinc per mole of polymerase A, B and C, respectively. These enzymes are inhibited by treatment with 1,10-phenanthroline at concentrations varying from 10-5… (More)
DOI: 10.1007/BF00778508

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