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hisI | Phosphoribosyl-AMP cyclohydrolase / Phosphoribosyl-ATP pyrophosphatase; In the N-terminal section; belongs to the PRA-CH family. (195 aa) | ||||
hisF | Imidazole glycerol phosphate synthase cyclase subunit; IGPS catalyzes the conversion of PRFAR and glutamine to IGP, AICAR and glutamate. The HisF subunit catalyzes the cyclization activity that produces IGP and AICAR from PRFAR using the ammonia provided by the HisH subunit. (252 aa) | ||||
BD94_1326 | Hypothetical protein. (221 aa) | ||||
hisA | Phosphoribosylformimino-5-aminoimidazole carboxamide ribotide isomerase. (238 aa) | ||||
BD94_1328 | Tricorn protease homolog; Degrades oligopeptides; Belongs to the peptidase S41B family. (1058 aa) | ||||
hisH | Imidazole glycerol phosphate synthase amidotransferase subunit; IGPS catalyzes the conversion of PRFAR and glutamine to IGP, AICAR and glutamate. The HisH subunit catalyzes the hydrolysis of glutamine to glutamate and ammonia as part of the synthesis of IGP and AICAR. The resulting ammonia molecule is channeled to the active site of HisF. (192 aa) | ||||
hisB | Histidinol-phosphatase / Imidazoleglycerol-phosphate dehydratase; In the C-terminal section; belongs to the imidazoleglycerol-phosphate dehydratase family. (377 aa) | ||||
hisC | Histidinol-phosphate aminotransferase; Belongs to the class-II pyridoxal-phosphate-dependent aminotransferase family. Histidinol-phosphate aminotransferase subfamily. (343 aa) | ||||
hisD | Histidinol dehydrogenase; Catalyzes the sequential NAD-dependent oxidations of L- histidinol to L-histidinaldehyde and then to L-histidine. (439 aa) | ||||
hisG | ATP phosphoribosyltransferase; Catalyzes the condensation of ATP and 5-phosphoribose 1- diphosphate to form N'-(5'-phosphoribosyl)-ATP (PR-ATP). Has a crucial role in the pathway because the rate of histidine biosynthesis seems to be controlled primarily by regulation of HisG enzymatic activity. Belongs to the ATP phosphoribosyltransferase family. Long subfamily. (284 aa) |