Enzyme:2.4.2.22

9-(5-phospho-beta-D-ribosyl)xanthine:diphosphate5-phospho-alpha-D-ribosyltransferase
Systematic Name	9-(5-phospho-beta-D-ribosyl)xanthine:diphosphate5-phospho-alpha-D-ribosyltransferase
Common Name	xanthine phosphoribosyltransferase Xan phosphoribosyltransferase xanthosine 5'-phosphate pyrophosphorylase xanthylate pyrophosphorylase xanthylic pyrophosphorylase

Xanthine + D-5-Phospho-ribosyl 1-diphosphate = XMP + Pyrophosphate
(links: XMP = 3,7-Dihydropurine-2,6-dione + D-5-Phospho-ribosyl 1-diphosphate)

XMP	<Mapping> AtomMap:BMCCPUXA0024$BMCCPUXA0021$0	3,7-Dihydropurine-2,6-dione
	1 ↔ 1 2 ↔ 2 3 ↔ 3 4 ↔ 4 5 ↔ 5 6 ↔ 6 7 ↔ 7 8 ↔ 8 9 ↔ 9

XMP	<Mapping> AtomMap:BMCCPUXA0024$BMSUM5Ae--04$0	D-5-Phospho-ribosyl 1-diphosphate
	12 ↔ 1 13 ↔ 2 14 ↔ 3 15 ↔ 4 16 ↔ 5

Guanine + D-5-Phospho-ribosyl 1-diphosphate = GMP + Pyrophosphate
(links: GMP = 2-Amino-3,7-dihydropurin-6-one + D-5-Phospho-ribosyl 1-diphosphate)

GMP	<Mapping> AtomMap:BMCCPUGU0012$BMCCPUGU0014$0	2-Amino-3,7-dihydropurin-6-one
	1 ↔ 1 2 ↔ 2 3 ↔ 3 4 ↔ 4 5 ↔ 5 6 ↔ 6 7 ↔ 7 8 ↔ 8 9 ↔ 9 10 ↔ 10

GMP	<Mapping> AtomMap:BMCCPUGU0012$BMSUM5Ae--04$0	D-5-Phospho-ribosyl 1-diphosphate
	12 ↔ 1 13 ↔ 2 14 ↔ 3 15 ↔ 4 16 ↔ 5

IDs and Links
IUBMB	EC2
ExPaSy	NiceZyme 2.4.2.22