Enzyme:2.4.2.2

Revision as of 09:00, 2 February 2009

pyrimidine-nucleoside:phosphate alpha-D-ribosyltransferase
Systematic Name	pyrimidine-nucleoside:phosphate alpha-D-ribosyltransferase
Common Name	pyrimidine-nucleoside phosphorylase

Cytidine + Orthophosphate = Cytosine + D-Ribose 1-phosphate
(links: Cytidine = 6-Amino-1H-pyrimidin-2-one + D-Ribose 1-phosphate)

Cytidine	<Mapping> AtomMap:BMMCPYCT0018$BMMCPYCT0019$0	6-Amino-1H-pyrimidin-2-one
	1 ↔ 1 2 ↔ 2 3 ↔ 3 4 ↔ 4 5 ↔ 5 6 ↔ 6 8 ↔ 8

Cytidine	<Mapping> AtomMap:BMMCPYCT0018$BMSUM5Ae--07$0	D-Ribose 1-phosphate
	9 ↔ 1 10 ↔ 2 11 ↔ 3 12 ↔ 4 13 ↔ 5

1- [3,4-Dihydroxy-5- (hydroxymethyl) oxolan-2-yl] pyrimidine-2,4-dione	<Mapping> AtomMap:BMMCPYUR0018$BMMCPYUR0017$0	1H-Pyrimidine-2,4-dione
	1 ↔ 1 2 ↔ 2 3 ↔ 3 4 ↔ 4 5 ↔ 5 6 ↔ 6

1- [3,4-Dihydroxy-5- (hydroxymethyl) oxolan-2-yl] pyrimidine-2,4-dione	<Mapping> AtomMap:BMMCPYUR0018$BMSUM5Ae--07$0	D-Ribose 1-phosphate
	9 ↔ 1 10 ↔ 2 11 ↔ 3 12 ↔ 4 13 ↔ 5

@@ Line 3: / Line 3: @@
 |SysName=pyrimidine-nucleoside:phosphate alpha-D-ribosyltransferase
 |names=&&pyrimidine-nucleoside phosphorylase
+}}
+{{Enzyme/Reaction| reaction= Cytidine + Orthophosphate = Cytosine + D-Ribose 1-phosphate
+| list=
+&& BMMCPYCT0018$BMMCPYCT0019$0
+&& BMMCPYCT0018$BMSUM5Ae--07$0
+}}
+{{Enzyme/Reaction| reaction= Uridine + Orthophosphate = Uracil + D-Ribose 1-phosphate
+| list=
+&& BMMCPYUR0018$BMMCPYUR0017$0
+&& BMMCPYUR0018$BMSUM5Ae--07$0
 }}

IDs and Links
IUBMB	EC2
ExPaSy	NiceZyme 2.4.2.2