The biosynthesis of histidine has been studied extensively in Salmonella enterica and Escherichia coli. In these enterobacteria, a single operon composed of eight adjacent genes encodes the complete set of histidine biosynthetic enzymes. Three (hisD, hisNB,andhisIE) of the eight genes encode bifunctional enzymes, while two (hisH and hisF) encode a heterodimeric enzyme catalyzing a single step, for a total of 10 enzymatic reactions.
Histidine operon / P. Alifano; R. Fani. - STAMPA. - (2013), pp. 471-476. [10.1016/B978-0-12-374984-0.00711-7]
Histidine operon
FANI, RENATO
2013
Abstract
The biosynthesis of histidine has been studied extensively in Salmonella enterica and Escherichia coli. In these enterobacteria, a single operon composed of eight adjacent genes encodes the complete set of histidine biosynthetic enzymes. Three (hisD, hisNB,andhisIE) of the eight genes encode bifunctional enzymes, while two (hisH and hisF) encode a heterodimeric enzyme catalyzing a single step, for a total of 10 enzymatic reactions.
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