ID B5VJ98_YEAS6 Unreviewed; 507 AA.
AC B5VJ98;
DT 25-NOV-2008, integrated into UniProtKB/TrEMBL.
DT 25-NOV-2008, sequence version 1.
DT 27-MAR-2024, entry version 60.
DE RecName: Full=Cystathionine beta-synthase {ECO:0000256|ARBA:ARBA00026192, ECO:0000256|RuleBase:RU361204};
DE EC=4.2.1.22 {ECO:0000256|ARBA:ARBA00012041, ECO:0000256|RuleBase:RU361204};
GN ORFNames=AWRI1631_73770 {ECO:0000313|EMBL:EDZ71999.1};
OS Saccharomyces cerevisiae (strain AWRI1631) (Baker's yeast).
OC Eukaryota; Fungi; Dikarya; Ascomycota; Saccharomycotina; Saccharomycetes;
OC Saccharomycetales; Saccharomycetaceae; Saccharomyces.
OX NCBI_TaxID=545124 {ECO:0000313|EMBL:EDZ71999.1, ECO:0000313|Proteomes:UP000008988};
RN [1] {ECO:0000313|EMBL:EDZ71999.1, ECO:0000313|Proteomes:UP000008988}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=AWRI1631 {ECO:0000313|EMBL:EDZ71999.1,
RC ECO:0000313|Proteomes:UP000008988};
RX PubMed=18778279; DOI=10.1111/j.1567-1364.2008.00434.x;
RA Borneman A.R., Forgan A.H., Pretorius I.S., Chambers P.J.;
RT "Comparative genome analysis of a Saccharomyces cerevisiae wine strain.";
RL FEMS Yeast Res. 8:1185-1195(2008).
CC -!- CATALYTIC ACTIVITY:
CC Reaction=L-homocysteine + L-serine = H2O + L,L-cystathionine;
CC Xref=Rhea:RHEA:10112, ChEBI:CHEBI:15377, ChEBI:CHEBI:33384,
CC ChEBI:CHEBI:58161, ChEBI:CHEBI:58199; EC=4.2.1.22;
CC Evidence={ECO:0000256|ARBA:ARBA00001175,
CC ECO:0000256|RuleBase:RU361204};
CC -!- COFACTOR:
CC Name=pyridoxal 5'-phosphate; Xref=ChEBI:CHEBI:597326;
CC Evidence={ECO:0000256|ARBA:ARBA00001933,
CC ECO:0000256|RuleBase:RU361204};
CC -!- PATHWAY: Amino-acid biosynthesis; L-cysteine biosynthesis; L-cysteine
CC from L-homocysteine and L-serine: step 1/2.
CC {ECO:0000256|ARBA:ARBA00005003}.
CC -!- SIMILARITY: Belongs to the cysteine synthase/cystathionine beta-
CC synthase family. {ECO:0000256|ARBA:ARBA00007103,
CC ECO:0000256|RuleBase:RU361204}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:EDZ71999.1}.
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DR EMBL; ABSV01000974; EDZ71999.1; -; Genomic_DNA.
DR AlphaFoldDB; B5VJ98; -.
DR UniPathway; UPA00136; UER00201.
DR Proteomes; UP000008988; Unassembled WGS sequence.
DR GO; GO:0005737; C:cytoplasm; IEA:InterPro.
DR GO; GO:0004122; F:cystathionine beta-synthase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0006535; P:cysteine biosynthetic process from serine; IEA:UniProtKB-UniRule.
DR GO; GO:0019343; P:cysteine biosynthetic process via cystathionine; IEA:UniProtKB-UniRule.
DR CDD; cd01561; CBS_like; 1.
DR CDD; cd04608; CBS_pair_CBS; 1.
DR Gene3D; 3.40.50.1100; -; 2.
DR Gene3D; 3.10.580.10; CBS-domain; 1.
DR InterPro; IPR046353; CBS_C.
DR InterPro; IPR000644; CBS_dom.
DR InterPro; IPR046342; CBS_dom_sf.
DR InterPro; IPR005857; Cysta_beta_synth.
DR InterPro; IPR001216; P-phosphate_BS.
DR InterPro; IPR001926; TrpB-like_PALP.
DR InterPro; IPR036052; TrpB-like_PALP_sf.
DR NCBIfam; TIGR01137; cysta_beta; 1.
DR PANTHER; PTHR10314; CYSTATHIONINE BETA-SYNTHASE; 1.
DR PANTHER; PTHR10314:SF194; CYSTATHIONINE BETA-SYNTHASE; 1.
DR Pfam; PF00571; CBS; 1.
DR Pfam; PF00291; PALP; 1.
DR SMART; SM00116; CBS; 2.
DR SUPFAM; SSF54631; CBS-domain pair; 1.
DR SUPFAM; SSF53686; Tryptophan synthase beta subunit-like PLP-dependent enzymes; 1.
DR PROSITE; PS51371; CBS; 1.
DR PROSITE; PS00901; CYS_SYNTHASE; 1.
PE 3: Inferred from homology;
KW Amino-acid biosynthesis {ECO:0000256|RuleBase:RU361204};
KW CBS domain {ECO:0000256|ARBA:ARBA00023122, ECO:0000256|PROSITE-
KW ProRule:PRU00703};
KW Cysteine biosynthesis {ECO:0000256|ARBA:ARBA00023192,
KW ECO:0000256|RuleBase:RU361204};
KW Lyase {ECO:0000256|ARBA:ARBA00023239, ECO:0000256|RuleBase:RU361204};
KW Pyridoxal phosphate {ECO:0000256|RuleBase:RU361204}.
FT DOMAIN 373..432
FT /note="CBS"
FT /evidence="ECO:0000259|PROSITE:PS51371"
SQ SEQUENCE 507 AA; 56049 MW; D0C7058AD0FD0746 CRC64;
MTKSEQQADS RHNVIDLVGN TPLIALKKLP KALGIKPQIY AKLELYNPGG SIKDRIAKSM
VEEAEASGRI HPSRSTLIEP TSGNTGIGLA LIGAIKGYRT IITLPEKMSN EKVSVLKALG
AEIIRTPTAA AWDSPESHIG VAKKLEKEIP GAVILDQYNN MMNPEAHYFG TGREIQRQLE
DLNLFDNLRA VVAGAGTGGT ISGISKYLKE QNDKIQIVGA DPFGSILAQP ENLNKTDITD
YKVEGIGYDF VPQVLDRKLI DVWYKTDDKP SFKYARQLIS NEGVLVGGSS GSAFTAVVKY
CEDHPELTED DVIVAIFPDS IRSYLTKFVD DEWLKKNNLW DDDVLARFDS SKLEASTTKY
ADVFGNATVK DLHLKPVVSV KETAKVTDVI KILKDNGFDQ LPVLTEDGKL SGLVTLSELL
RKLSINNSNN DNTIKGKYLD FKKLNNFNDV SSYNENKSGK KKFIKFDENS KLSDLNRFFE
KNSSAVITDG LKPIHIVTKM DLLNYLA
//
