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Information on EC 4.2.1.22 - cystathionine beta-synthase

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EC Tree
     4 Lyases
         4.2 Carbon-oxygen lyases
             4.2.1 Hydro-lyases
                4.2.1.22 cystathionine beta-synthase
IUBMB Comments
A pyridoxal-phosphate protein. A multifunctional enzyme: catalyses beta-replacement reactions between L-serine, L-cysteine, cysteine thioethers, or some other beta-substituted alpha-L-amino acids, and a variety of mercaptans.
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This record set is specific for:
UNIPROT: Q3TWN3
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Word Map
The expected taxonomic range for this enzyme is: Eukaryota, Bacteria, Archaea
Synonyms
cbs, cystathionine beta-synthase, cystathionine-beta-synthase, cnnm2, cystathionine beta synthase, serine sulfhydrylase, ytcbs, serine sulfhydrase, hemoprotein h-450, cdcp2, more
SYNONYM
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
Beta-thionase
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CBS
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-
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Cysteine synthase
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Hemoprotein H-450
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Methylcysteine synthase
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Serine sulfhydrase
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Serine sulfhydrylase
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Serine sulphhydrase
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REACTION TYPE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
elimination
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C-S bond formation
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SYSTEMATIC NAME
IUBMB Comments
L-serine hydro-lyase (adding homocysteine; L-cystathionine-forming)
A pyridoxal-phosphate protein. A multifunctional enzyme: catalyses beta-replacement reactions between L-serine, L-cysteine, cysteine thioethers, or some other beta-substituted alpha-L-amino acids, and a variety of mercaptans.
CAS REGISTRY NUMBER
COMMENTARY hide
9023-99-8
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ORGANISM
COMMENTARY hide
LITERATURE
UNIPROT
SEQUENCE DB
SOURCE
-
UniProt
Manually annotated by BRENDA team
GENERAL INFORMATION
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
physiological function
deletion mutants of conserved domain protein/cyclin M Mg2+ transporter CNNM2, lacking the CBS domains, are unable to promote Mg2+ efflux. The CBS domains of CNNM2 bind to ATP in a Mg2+-dependent manner
UNIPROT
ENTRY NAME
ORGANISM
NO. OF AA
NO. OF TRANSM. HELICES
MOLECULAR WEIGHT[Da]
SOURCE
SEQUENCE
LOCALIZATION PREDICTION?
CNNM2_MOUSE
875
0
96704
Swiss-Prot
-
PROTEIN VARIANTS
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
T568I
substitution of amino acid residue in the CBS domains of CNNM2, abrogates Mg2+ efflux and binding of ATP
REF.
AUTHORS
TITLE
JOURNAL
VOL.
PAGES
YEAR
ORGANISM (UNIPROT)
PUBMED ID
SOURCE
Hirata, Y.; Funato, Y.; Takano, Y.; Miki, H.
Mg2+-dependent interactions of ATP with the cystathionine-beta-synthase (CBS) domains of a magnesium transporter
J. Biol. Chem.
289
14731-14739
2014
Mus musculus (Q3TWN3)
Manually annotated by BRENDA team