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ProteinQ5201183· pop 9· linked from 406 articles

Cystathionine beta-synthase

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Also known as beta-thionase, Cystathionine beta-synthase-like protein, methylcysteine synthase, serine sulfhydrase, CBS

mammalian protein found in Homo sapiens

Protein · UniProt

Cystathionine beta-synthase

Gene
CBS
Organism
Homo sapiens (Human)
Length
551 aa
Molecular mass
60,587 Da
Evidence
1: Evidence at protein level

Hydro-lyase catalyzing the first step of the transsulfuration pathway, where the hydroxyl group of L-serine is displaced by L-homocysteine in a beta-replacement reaction to form L-cystathionine, the precursor of L-cysteine. This catabolic route allows the elimination of L-methionine and the toxic metabolite L-homocysteine (PubMed:20506325, PubMed:23974653, PubMed:23981774). Also involved in the production of hydrogen sulfide, a gasotransmitter with signaling and cytoprotective effects on neurons (By similarity)

3D-structureAllosteric enzymeAlternative splicingAmino-acid biosynthesisCBS domainCysteine biosynthesisCytoplasmDisease variant
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Swiss-Prot (reviewed) · via UniProt

Wikidata facts

Instance of
protein
Show 4 more facts
cell component
cytosol
physically interacts with
aminooxyacetic acid
found in taxon
Homo sapiens
Commons category
Cystathionine beta-synthase
Sources (4)

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