Gene: tryptophan-4 IVR
tryptophan-4
locus: trp-4
locus_name: tryptophan-4
organism_type: B
chromosome_number: IV
chromosome_side: R
link_group: IVR
cultural_requirements: IVR. Between his-5 (3 to 7%) and leu-2 (1 to 2%) (633, 991). (47). Uses tryptophan or indole (750). Deficient in anthranilate phosphoribosyl transferase (1126) (Fig. 11). Scorable by blue fluorescence (anthranilate) in medium under long-wave UV after 2 to 5 days of growth on minimal medium plus indole (10 µg /ml), 34°C. Initial stocks of the first trp-4 mutant were inhibited by suboptimal concentrations of tryptophan (750), but derivatives have been obtained that are free of this problem (909).
enzyme_id: 64
Enzyme: anthranilate phosphoribosyl transferase.
anid_name: trpD
near_l: his-5 (3 to 7%)
near_r: leu-2 (1 to 2%)
neu_name:
supplement: tryptophan or indole
image_url:
Strains
References
