CYAS_METBU
ID CYAS_METBU Reviewed; 417 AA.
AC Q12W15;
DT 23-MAR-2010, integrated into UniProtKB/Swiss-Prot.
DT 22-AUG-2006, sequence version 1.
DT 03-AUG-2022, entry version 84.
DE RecName: Full=Cysteate synthase {ECO:0000255|HAMAP-Rule:MF_02109};
DE Short=CS {ECO:0000255|HAMAP-Rule:MF_02109};
DE Short=Cya synthase {ECO:0000255|HAMAP-Rule:MF_02109};
DE EC=2.5.1.76 {ECO:0000255|HAMAP-Rule:MF_02109};
GN OrderedLocusNames=Mbur_1454;
OS Methanococcoides burtonii (strain DSM 6242 / NBRC 107633 / OCM 468 /
OS ACE-M).
OC Archaea; Euryarchaeota; Stenosarchaea group; Methanomicrobia;
OC Methanosarcinales; Methanosarcinaceae; Methanococcoides.
OX NCBI_TaxID=259564;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 6242 / NBRC 107633 / OCM 468 / ACE-M;
RX PubMed=19404327; DOI=10.1038/ismej.2009.45;
RA Allen M.A., Lauro F.M., Williams T.J., Burg D., Siddiqui K.S.,
RA De Francisci D., Chong K.W., Pilak O., Chew H.H., De Maere M.Z., Ting L.,
RA Katrib M., Ng C., Sowers K.R., Galperin M.Y., Anderson I.J., Ivanova N.,
RA Dalin E., Martinez M., Lapidus A., Hauser L., Land M., Thomas T.,
RA Cavicchioli R.;
RT "The genome sequence of the psychrophilic archaeon, Methanococcoides
RT burtonii: the role of genome evolution in cold adaptation.";
RL ISME J. 3:1012-1035(2009).
CC -!- FUNCTION: Specifically catalyzes the beta-elimination of phosphate from
CC L-phosphoserine and the beta-addition of sulfite to the dehydroalanine
CC intermediate to produce L-cysteate. {ECO:0000255|HAMAP-Rule:MF_02109}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=H(+) + O-phospho-L-serine + sulfite = L-cysteate + phosphate;
CC Xref=Rhea:RHEA:26486, ChEBI:CHEBI:15378, ChEBI:CHEBI:17359,
CC ChEBI:CHEBI:43474, ChEBI:CHEBI:57524, ChEBI:CHEBI:58090; EC=2.5.1.76;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_02109};
CC -!- COFACTOR:
CC Name=pyridoxal 5'-phosphate; Xref=ChEBI:CHEBI:597326;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_02109};
CC -!- PATHWAY: Cofactor biosynthesis; coenzyme M biosynthesis.
CC {ECO:0000255|HAMAP-Rule:MF_02109}.
CC -!- SUBUNIT: Homotrimer. {ECO:0000255|HAMAP-Rule:MF_02109}.
CC -!- SIMILARITY: Belongs to the threonine synthase family. Cysteate synthase
CC subfamily. {ECO:0000255|HAMAP-Rule:MF_02109}.
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DR EMBL; CP000300; ABE52361.1; -; Genomic_DNA.
DR RefSeq; WP_011499505.1; NC_007955.1.
DR AlphaFoldDB; Q12W15; -.
DR SMR; Q12W15; -.
DR STRING; 259564.Mbur_1454; -.
DR EnsemblBacteria; ABE52361; ABE52361; Mbur_1454.
DR GeneID; 3998483; -.
DR KEGG; mbu:Mbur_1454; -.
DR HOGENOM; CLU_666687_0_0_2; -.
DR OMA; NLPFVPM; -.
DR OrthoDB; 16594at2157; -.
DR UniPathway; UPA00355; -.
DR Proteomes; UP000001979; Chromosome.
DR GO; GO:0044686; F:cysteate synthase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0030170; F:pyridoxal phosphate binding; IEA:UniProtKB-UniRule.
DR GO; GO:0019295; P:coenzyme M biosynthetic process; IEA:UniProtKB-UniRule.
DR Gene3D; 3.40.50.1100; -; 2.
DR HAMAP; MF_02109; Cya_synthase; 1.
DR InterPro; IPR022401; Cysteate_synthase.
DR InterPro; IPR001926; PLP-dep.
DR InterPro; IPR036052; Trypto_synt_PLP_dependent.
DR Pfam; PF00291; PALP; 1.
DR SUPFAM; SSF53686; SSF53686; 1.
DR TIGRFAMs; TIGR03844; cysteate_syn; 1.
PE 3: Inferred from homology;
KW Coenzyme M biosynthesis; Pyridoxal phosphate; Reference proteome;
KW Transferase.
FT CHAIN 1..417
FT /note="Cysteate synthase"
FT /id="PRO_0000392645"
FT BINDING 131
FT /ligand="pyridoxal 5'-phosphate"
FT /ligand_id="ChEBI:CHEBI:597326"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_02109"
FT BINDING 371
FT /ligand="pyridoxal 5'-phosphate"
FT /ligand_id="ChEBI:CHEBI:597326"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_02109"
FT MOD_RES 104
FT /note="N6-(pyridoxal phosphate)lysine"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_02109"
SQ SEQUENCE 417 AA; 46107 MW; B6A8F0424224A2E2 CRC64;
MKKYIVKCPG CGEVRDQYAL HCPDDDALPR TEYFKKQIVP ADMPGMWRYY DWLPVNGIIE
KGSGRPVTYK SEGFAKELRL SDLNITFNGY WPENEGFIRT CSFKDLESFP TMQRLLENNE
RRVLVVASAG NTARAFAHVA SITGYPLLLI VPKNSTHRLW TTEEDTSSVC TVTVDGDYYQ
AIAMAEKIAA RDGFVSEGGA RNVARRDGMG TVMLDAVLTT KSLPQHYFQA VGSGTGGISA
WEAAMRLIED GRFGNNMPRL HLAQNLPCAP LYSTWTGEQT NGNCPEEMYD DVLFNRKPPY
LATGGVKDAL DDTNGIIYGI TNKEADEARK IFEENEGIDI LPAPAIACAA IMKALEKGEI
KADENIVLNI TGGGQKRLEE ELPTRQLSVD LALSPDDKDA ENKILEKVAE LLKNGGY