Cystathionine gamma-lyase

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cystathionine gamma-lyase
Cysteine Biosynthesis.png
Cysteine metabolism. Cystathionase catalyzes the lower reaction.
Identifiers
EC number 4.4.1.1
CAS number 9012-96-8
Databases
IntEnz IntEnz view
BRENDA BRENDA entry
ExPASy NiceZyme view
KEGG KEGG entry
MetaCyc metabolic pathway
PRIAM profile
PDB structures RCSB PDB PDBe PDBsum
Gene Ontology AmiGO / EGO

Cystathionine gamma-lyase (CSE) (or cystathionase) is an enzyme which breaks down cystathionine into cysteine and α-ketobutyrate. Pyridoxal phosphate is a prosthetic group of this enzyme.

Cystathionine gamma-lyase also catalyses the following elimination reactions:

In some bacteria and mammals, including humans, this enzyme takes part in generating hydrogen sulfide.[1]

Examples[edit]

The following cystathionine gamma-lyase is expressed in humans:

cystathionase (cystathionine gamma-lyase)
Identifiers
Symbol CTH
Entrez 1491
HUGO 2501
OMIM 607657
RefSeq NM_001902
UniProt P32929
Other data
Locus Chr. 1 p31.1

Pathology[edit]

An deficiency is associated with cystathioninuria.

See also[edit]

External links[edit]

References[edit]

  1. ^ Wang R (March 2010). "Toxic Gas, Lifesaver". Scientific American: 52.