Gene: histidine
histidine
locus: his
locus_name: histidine
organism_type: B
chromosome_number:
chromosome_side:
link_group:
cultural_requirements: Most histidine auxotrophs are inhibited by complex media or by certain combinations of amino acids with which histidine does not compete effectively for permeases of the basic, neutral, and general amino acid transport systems. A histidine mutant can grow on minimal medium plus histidine in the presence of either a basic amino acid or a competing neutral amino acid, but not in the presence of both (434, 628, 646). Histidine mutants were not obtained in early mutant hunts in which complex media were used, but were recovered on histidine-supplemented minimal medium (434, 595). For general studies, see references 162, 434, and 1123. For details of histidine biosynthesis, see Fig. 14. Enzymes of histidine biosynthesis are derepressed coordinately with those of tryptophan, arginine, and lysine (137, 1131); reviewed in reference 642. See cpc-1. Called hist.
enzyme_id:
anid_name:
near_l:
near_r:
neu_name:
supplement: histidine
image_url:
Strains
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