Enzyme:4.4.1.8

Revision as of 19:00, 17 June 2009

cystathionine L-homocysteine-lyase (deaminating)
Systematic Name	cystathionine L-homocysteine-lyase (deaminating)
Common Name	cystathionine beta-lyase beta-cystathionase cystine lyase

(2R) -2-Amino-3- (2-amino-3-hydroxy-3-oxopropyl) disulfanylpropanoic acid	<Mapping> AtomMap:BMAAS3SF0006$BMAAS3SF0003$0	L-Cysteine
	6 ↔ 1 7 ↔ 2 8 ↔ 3 9 ↔ 4 10 ↔ 5

(2R) -2-Amino-3- (2-amino-3-hydroxy-3-oxopropyl) disulfanylpropanoic acid	<Mapping> AtomMap:BMAAS3SF0006$BMAAS3SF0003$1 (2nd)	L-Cysteine
	1 ↔ 1 2 ↔ 2 3 ↔ 3 4 ↔ 4 5 ↔ 5

Seleno-L-cystathionine + H2O => Seleno-L-homocysteine + Pyruvic acid + NH3
(links: Seleno-L-cystathionine = Seleno-L-homocysteine + 2-Oxo-propanoic acid + NH3)

Seleno-L-cystathionine	<Mapping> AtomMap:BMAXS4MT0001$BMAXDP--c016$0	Seleno-L-homocysteine
	5 ↔ 1 6 ↔ 2 7 ↔ 3 8 ↔ 4 9 ↔ 5

Seleno-L-cystathionine	<Mapping> AtomMap:BMAXDP--c016$BMFYS3CAp025$0	2-Oxo-propanoic acid
	1 ↔ 1 2 ↔ 2 3 ↔ 3

Seleno-L-cystathionine	<Mapping> AtomMap:BMAXDP--c016$BMIONT--0004$1 (2nd)	NH3
	4 ↔ 1

L-Cystathionine + H2O => L-Homocysteine + Pyruvic acid + NH3
(links: L-Cystathionine = L-Homocysteine + 2-Oxo-propanoic acid + NH3)

L-Cystathionine	<Mapping> AtomMap:BMAAS4SF0002$BMFYB4CAf021$0	L-Homocysteine
	1 ↔ 1 2 ↔ 2 3 ↔ 3 4 ↔ 4 5 ↔ 5 6 ↔ 6

L-Cystathionine	<Mapping> AtomMap:BMFYB4CAf021$BMFYS3CAp025$0	2-Oxo-propanoic acid
	7 ↔ 1 8 ↔ 2 9 ↔ 3

L-Cystathionine	<Mapping> AtomMap:BMFYB4CAf021$BMIONT--0004$1 (2nd)	NH3
	10 ↔ 1

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IDs and Links
IUBMB	EC4
ExPaSy	NiceZyme 4.4.1.8