2.4.2.17	1-(5-phospho-D-ribosyl)-ATP:pyrophosphate phospho-alpha-D-ribosyltransferase, adenosine 5'-triphosphate phosphoribosyltransferase, adenosine triphosphate phosphoribosyltransferase, adenosine-triphosphate phosphoribosyltransferase, ATP phosphoribosyl transferase, ATP phosphoribosyl transferase complex, ATP phosphoribosyltransferase, ATP-phosphoribosyl transferase, ATP-phosphoribosyltransferase, ATP-PRT, ATP-PRT1, ATP-PRT2, ATP-PRTase, ATPPRT, HisG, HisGL, N-1-(5'-phosphoribosyl)-ATP transferase, phosphoribosyl ATP synthetase, phosphoribosyl ATP:pyrophosphate phosphoribosyltransferase, phosphoribosyl-ATP pyrophosphorylase, phosphoribosyl-ATP:pyrophosphate-phosphoribosyl phosphotransferase, phosphoribosyladenosine triphosphate pyrophosphorylase, phosphoribosyladenosine triphosphate synthetase, phosphoribosyltransferase, adenosine triphosphate	-	
2.4.2.17	HisGs	catalytic subunit	
2.4.2.17	HisZ	regulatory subunit	
2.4.2.17	ATPPRT	the enzyme is a multi-protein complex where the regulatory protein HisZ allosterically enhances catalysis by the catalytic protein HisGS