3.6.1.31	210042	Isolation and characterization of a histidine biosynthetic gene in Arabidopsis encoding a polypeptide with two separate domains for phosphoribosyl-ATP pyrophosphohydrolase and phosphoribosyl-AMP cyclohydrolase	Arabidopsis sp.	
3.6.1.31	210040	Phosphoribosyladenosine monophosphate, an intermediate in histidine biosynthesis	Salmonella enterica subsp. enterica serovar Typhimurium	
3.6.1.31	695322	The 1.25 A resolution structure of phosphoribosyl-ATP pyrophosphohydrolase from Mycobacterium tuberculosis	Mycobacterium tuberculosis	
3.6.1.31	695322	The 1.25 A resolution structure of phosphoribosyl-ATP pyrophosphohydrolase from Mycobacterium tuberculosis	Mycobacterium tuberculosis H37Rv	
3.6.1.31	210041	The product of the his4 gene cluster in Saccharomyces cerevisiae. A trifunctional polypeptide	Saccharomyces cerevisiae