Affiliation:
1. School of Microbiology, University of Melbourne, Parkville, Victoria, Australia
Abstract
Both in vivo and in vitro experiments on wild-type
Escherichia coli
K-12 and mutant strains possessing only single 3-deoxy-
d
-
arabino
-heptulosonic 7-phosphate acid (DAHP) synthetase isoenzymes indicated that, under conditions when all three isoenzymes are fully repressed, sufficient chorismate is still formed for the synthesis of aromatic vitamins. Under repressed conditions both DAHP synthetase (phe) and (trp), but not DAHP synthetase (tyr), were shown to contribute to vitamin production.
Publisher
American Society for Microbiology
Subject
Molecular Biology,Microbiology
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