ID A0A1Q6YUJ0_9CHLR Unreviewed; 458 AA.
AC A0A1Q6YUJ0;
DT 12-APR-2017, integrated into UniProtKB/TrEMBL.
DT 12-APR-2017, sequence version 1.
DT 27-MAR-2024, entry version 17.
DE RecName: Full=Cystathionine beta-synthase {ECO:0000256|ARBA:ARBA00026192};
DE EC=4.2.1.22 {ECO:0000256|ARBA:ARBA00012041};
DE AltName: Full=Beta-thionase {ECO:0000256|ARBA:ARBA00030337};
DE AltName: Full=Serine sulfhydrase {ECO:0000256|ARBA:ARBA00031579};
GN ORFNames=AUH05_09045 {ECO:0000313|EMBL:OLB40888.1};
OS Ktedonobacter sp. 13_2_20CM_53_11.
OC Bacteria; Chloroflexota; Ktedonobacteria; Ktedonobacterales;
OC Ktedonobacteraceae; Ktedonobacter.
OX NCBI_TaxID=1805233 {ECO:0000313|EMBL:OLB40888.1, ECO:0000313|Proteomes:UP000185646};
RN [1] {ECO:0000313|EMBL:OLB40888.1, ECO:0000313|Proteomes:UP000185646}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX PubMed=27843720;
RA Butterfield C.N., Li Z., Andeer P.F., Spaulding S., Thomas B.C., Singh A.,
RA Hettich R.L., Suttle K.B., Probst A.J., Tringe S.G., Northen T., Pan C.,
RA Banfield J.F.;
RT "Proteogenomic analyses indicate bacterial methylotrophy and archaeal
RT heterotrophy are prevalent below the grass root zone.";
RL PeerJ 4:E2687-E2687(2016).
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 -!- COFACTOR:
CC Name=pyridoxal 5'-phosphate; Xref=ChEBI:CHEBI:597326;
CC Evidence={ECO:0000256|ARBA:ARBA00001933};
CC -!- PATHWAY: Amino-acid biosynthesis. {ECO:0000256|ARBA:ARBA00029440}.
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:OLB40888.1}.
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DR EMBL; MNDA01000241; OLB40888.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A1Q6YUJ0; -.
DR UniPathway; UPA00136; UER00201.
DR Proteomes; UP000185646; Unassembled WGS sequence.
DR GO; GO:0005737; C:cytoplasm; IEA:InterPro.
DR GO; GO:0004122; F:cystathionine beta-synthase activity; IEA:UniProtKB-EC.
DR GO; GO:0016765; F:transferase activity, transferring alkyl or aryl (other than methyl) groups; IEA:UniProt.
DR GO; GO:0006535; P:cysteine biosynthetic process from serine; IEA:InterPro.
DR GO; GO:0019343; P:cysteine biosynthetic process via cystathionine; IEA:InterPro.
DR CDD; cd01561; CBS_like; 1.
DR Gene3D; 3.40.50.1100; -; 2.
DR Gene3D; 3.10.580.10; CBS-domain; 1.
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; 1.
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 4: Predicted;
KW CBS domain {ECO:0000256|ARBA:ARBA00023122, ECO:0000256|PROSITE-
KW ProRule:PRU00703}; Lyase {ECO:0000256|ARBA:ARBA00023239};
KW Pyridoxal phosphate {ECO:0000256|ARBA:ARBA00022898}.
FT DOMAIN 339..394
FT /note="CBS"
FT /evidence="ECO:0000259|PROSITE:PS51371"
SQ SEQUENCE 458 AA; 49892 MW; EB1E0E3FA6C82541 CRC64;
MRYDKSILEL MGNTPLVRLN RVASDVPPLV LAKMEMLNPG GSVKDRIGPA MIEYCEKRGL
LRPGGTIVEP TSGNTGHGLA IAASIKGYHC IFVMTDKVSE EKRSLLRAYG AEVVICPSSV
PHESPEHYKN VAHRLAEEIP GAYCPDQYSN PANPATHYAT TGPEIWRDTA GRITAFVAGI
GTGGTISGTG RYLKEQNPQV KIIGADPPGS VYSGDTPGPY KVEGIGMEIF PPNYDPSVID
EVIRIEDRFS FYWARRLARE EGILTGGSAG TALGAALTYA RHLTANDVVV VLLPDTGRGY
LSKQFNDTWL RENNMFVQTE TTEPTMRDVL MYRRSHTRTM PLVVSVRPTD SVADAVELLR
RYGISQTPVM QDGHMVGSLT ENLLLRYFAS GESLAAETVS NLQGPPFPQL PADALAQESY
TLFTSGQSAV AVMNGDLLEG IVTKSDLLEF WAHNRSGK
//