Comparison of beta-galactosidases from normal (i-o+z+) and operator constitutive (i-ocz+) strains of E. coli.
- 1 October 1965
- journal article
- research article
- Published by Proceedings of the National Academy of Sciences in Proceedings of the National Academy of Sciences
- Vol. 54 (4), 1174-1181
- https://doi.org/10.1073/pnas.54.4.1174
Abstract
The properties of purified [beta]-galactosidases from a normal constitutive strain of E. coli K12 (3300, i-o+z+) and from an operator constitutive mutant (o6 c 7, i-ocz+) have been compared using physical, chemical, and biological methods. No detectable differences were found between the two protein preparations. It is concluded that the operator locus does not specify any part of the structure of the [beta]-galactosidase molecule.This publication has 16 references indexed in Scilit:
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