Enzyme:2.4.2.1

Revision as of 09:00, 2 February 2009

purine-nucleoside:phosphate ribosyltransferase
Systematic Name	purine-nucleoside:phosphate ribosyltransferase
Common Name	purine-nucleoside phosphorylase inosine phosphorylase PNPase PUNPI PUNPII

2-Amino-9- [ (2R,3R,4S,5R) -3,4-dihydroxy-5- (hydroxymethyl) oxolan-2-yl] H102-3H-purin-6-one	<Mapping> AtomMap:BMCCPUGU0015$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

2-Amino-9- [ (2R,3R,4S,5R) -3,4-dihydroxy-5- (hydroxymethyl) oxolan-2-yl] H102-3H-purin-6-one	<Mapping> AtomMap:BMCCPUGU0015$BMSUM5Ae--07$0	D-Ribose 1-phosphate
	12 ↔ 1 13 ↔ 2 14 ↔ 3 15 ↔ 4 16 ↔ 5

9- [ (2R,3R,4S,5R) -3,4-Dihydroxy-5- (hydroxymethyl) oxolan-2-yl] -3H-purine-2,6-dione	<Mapping> AtomMap:BMCCPUXA0022$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

9- [ (2R,3R,4S,5R) -3,4-Dihydroxy-5- (hydroxymethyl) oxolan-2-yl] -3H-purine-2,6-dione	<Mapping> AtomMap:BMCCPUXA0022$BMSUM5Ae--07$0	D-Ribose 1-phosphate
	12 ↔ 1 13 ↔ 2 14 ↔ 3 15 ↔ 4 16 ↔ 5

N-Ribosyl-nicotinamide + Orthophosphate = Nicotinamide + D-Ribose 1-phosphate
(links: N-Ribosyl-nicotinamide = Pyridine-3-carboxamide + D-Ribose 1-phosphate)

N-Ribosyl-nicotinamide	<Mapping> AtomMap:BMCCPUAPt035$BMMCPD--l020$0	Pyridine-3-carboxamide
	1 ↔ 1 2 ↔ 2 3 ↔ 3 4 ↔ 4 5 ↔ 5 6 ↔ 6 7 ↔ 7 8 ↔ 8

N-Ribosyl-nicotinamide	<Mapping> AtomMap:BMCCPUAPt035$BMSUM5Ae--07$0	D-Ribose 1-phosphate
	10 ↔ 1 11 ↔ 2 12 ↔ 3 13 ↔ 4 14 ↔ 5

9- [ (2R,3R,4S,5R) -3,4-Dihydroxy-5- (hydroxymethyl) oxolan-2-yl] -3H-purin-6-one	<Mapping> AtomMap:BMCCPUXA0015$BMCCPUXA0012$0	3,7-Dihydropurin-6-one
	1 ↔ 1 2 ↔ 2 3 ↔ 3 4 ↔ 4 5 ↔ 5 6 ↔ 6 7 ↔ 7 8 ↔ 8 9 ↔ 9

9- [ (2R,3R,4S,5R) -3,4-Dihydroxy-5- (hydroxymethyl) oxolan-2-yl] -3H-purin-6-one	<Mapping> AtomMap:BMCCPUXA0015$BMSUM5Ae--07$0	D-Ribose 1-phosphate
	11 ↔ 1 12 ↔ 2 13 ↔ 3 14 ↔ 4 15 ↔ 5

2- (6-Aminopurin-9-yl) -5- (hydroxymethyl) oxolane-3,4-diol	<Mapping> AtomMap:BMCCPUAD0008$BMCCPUAD0007$0	7H-Purin-6-amine
	1 ↔ 1 2 ↔ 2 3 ↔ 3 4 ↔ 4 5 ↔ 5 6 ↔ 6 7 ↔ 7 8 ↔ 8 9 ↔ 9 10 ↔ 10

2- (6-Aminopurin-9-yl) -5- (hydroxymethyl) oxolane-3,4-diol	<Mapping> AtomMap:BMCCPUAD0008$BMSUM5Ae--07$0	D-Ribose 1-phosphate
	11 ↔ 1 12 ↔ 2 13 ↔ 3 14 ↔ 4 15 ↔ 5

Nicotinate D-ribonucleoside + Orthophosphate = Nicotinic acid + D-Ribose 1-phosphate
(links: Nicotinate D-ribonucleoside = Pyridine-3-carboxylic acid + D-Ribose 1-phosphate)

Nicotinate D-ribonucleoside	<Mapping> AtomMap:BMMCPD--S501$BMMCPD--k021$0	Pyridine-3-carboxylic acid
	1 ↔ 1 2 ↔ 2 3 ↔ 3 4 ↔ 4 5 ↔ 5 6 ↔ 6 7 ↔ 7

Nicotinate D-ribonucleoside	<Mapping> AtomMap:BMMCPD--S501$BMSUM5Ae--07$0	D-Ribose 1-phosphate
	8 ↔ 1 9 ↔ 2 10 ↔ 3 11 ↔ 4 12 ↔ 5

@@ Line 3: / Line 3: @@
 |SysName=purine-nucleoside:phosphate ribosyltransferase
 |names=&&purine-nucleoside phosphorylase&&inosine phosphorylase&&PNPase&&PUNPI&&PUNPII
+}}
+{{Enzyme/Reaction| reaction= Guanosine + Orthophosphate = Guanine + D-Ribose 1-phosphate
+| list=
+&& BMCCPUGU0015$BMCCPUGU0014$0
+&& BMCCPUGU0015$BMSUM5Ae--07$0
+}}
+{{Enzyme/Reaction| reaction= Xanthosine + Orthophosphate = Xanthine + D-Ribose 1-phosphate
+| list=
+&& BMCCPUXA0022$BMCCPUXA0021$0
+&& BMCCPUXA0022$BMSUM5Ae--07$0
+}}
+{{Enzyme/Reaction| reaction= N-Ribosyl-nicotinamide + Orthophosphate = Nicotinamide + D-Ribose 1-phosphate
+| list=
+&& BMCCPUAPt035$BMMCPD--l020$0
+&& BMCCPUAPt035$BMSUM5Ae--07$0
+}}
+{{Enzyme/Reaction| reaction= Inosine + Orthophosphate = Hypoxanthine + D-Ribose 1-phosphate
+| list=
+&& BMCCPUXA0015$BMCCPUXA0012$0
+&& BMCCPUXA0015$BMSUM5Ae--07$0
+}}
+{{Enzyme/Reaction| reaction= Adenosine + Orthophosphate = Adenine + D-Ribose 1-phosphate
+| list=
+&& BMCCPUAD0008$BMCCPUAD0007$0
+&& BMCCPUAD0008$BMSUM5Ae--07$0
+}}
+{{Enzyme/Reaction| reaction= Nicotinate D-ribonucleoside + Orthophosphate = Nicotinic acid + D-Ribose 1-phosphate
+| list=
+&& BMMCPD--S501$BMMCPD--k021$0
+&& BMMCPD--S501$BMSUM5Ae--07$0
 }}

IDs and Links
IUBMB	EC2
ExPaSy	NiceZyme 2.4.2.1