Open AccessRegulation of the secretion of Rhizopus oligosporus extracellular carboxyl proteinase
Author(s) -
Peter C. Farley,
Lilik Ikasari
Publication year - 1992
Publication title -
journal of general microbiology/journal of general microbiology
Language(s) - English
Resource type - Journals
eISSN - 2059-9323
pISSN - 0022-1287
DOI - 10.1099/00221287-138-12-2539
Subject(s) - rhizopus oligosporus , extracellular , secretion , biochemistry , rhizopus , chemistry , microbiology and biotechnology , biology , fermentation
Secretion of the extracellular Rhizopus carboxyl proteinase (EC 3.4.23.6) by Rhizopus oligosporus is repressed in the presence of low-molecular-mass sources of nitrogen, sulphur and carbon. Proteinase is secreted when the medium is deficient in any one of these three nutrients. In the case of nitrogen metabolite repression, control is at the level of transcription. Induction of proteinase secretion by exogenous protein does not occur in any of the media examined.