7z8u

Structural highlights

Function

HIS1_PSYA2 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.

See Also

• ATP phosphoribosyl transferase 3D structures