ID   A1VSW4_POLNA            Unreviewed;       305 AA.
AC   A1VSW4;
DT   06-FEB-2007, integrated into UniProtKB/TrEMBL.
DT   06-FEB-2007, sequence version 1.
DT   27-MAR-2024, entry version 100.
DE   RecName: Full=Cysteine synthase {ECO:0000256|ARBA:ARBA00012681, ECO:0000256|RuleBase:RU003985};
DE            EC=2.5.1.47 {ECO:0000256|ARBA:ARBA00012681, ECO:0000256|RuleBase:RU003985};
GN   OrderedLocusNames=Pnap_3445 {ECO:0000313|EMBL:ABM38742.1};
OS   Polaromonas naphthalenivorans (strain CJ2).
OC   Bacteria; Pseudomonadota; Betaproteobacteria; Burkholderiales;
OC   Comamonadaceae; Polaromonas.
OX   NCBI_TaxID=365044 {ECO:0000313|EMBL:ABM38742.1, ECO:0000313|Proteomes:UP000000644};
RN   [1] {ECO:0000313|Proteomes:UP000000644}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=CJ2 {ECO:0000313|Proteomes:UP000000644};
RX   PubMed=19453698; DOI=10.1111/j.1462-2920.2009.01947.x;
RA   Yagi J.M., Sims D., Brettin T., Bruce D., Madsen E.L.;
RT   "The genome of Polaromonas naphthalenivorans strain CJ2, isolated from coal
RT   tar-contaminated sediment, reveals physiological and metabolic versatility
RT   and evolution through extensive horizontal gene transfer.";
RL   Environ. Microbiol. 11:2253-2270(2009).
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=hydrogen sulfide + O-acetyl-L-serine = acetate + L-cysteine;
CC         Xref=Rhea:RHEA:14829, ChEBI:CHEBI:29919, ChEBI:CHEBI:30089,
CC         ChEBI:CHEBI:35235, ChEBI:CHEBI:58340; EC=2.5.1.47;
CC         Evidence={ECO:0000256|ARBA:ARBA00000298,
CC         ECO:0000256|RuleBase:RU003985};
CC   -!- COFACTOR:
CC       Name=pyridoxal 5'-phosphate; Xref=ChEBI:CHEBI:597326;
CC         Evidence={ECO:0000256|ARBA:ARBA00001933,
CC         ECO:0000256|PIRSR:PIRSR605856-51, ECO:0000256|RuleBase:RU003985};
CC   -!- PATHWAY: Amino-acid biosynthesis; L-cysteine biosynthesis.
CC       {ECO:0000256|ARBA:ARBA00004895}.
CC   -!- SIMILARITY: Belongs to the cysteine synthase/cystathionine beta-
CC       synthase family. {ECO:0000256|ARBA:ARBA00007103,
CC       ECO:0000256|RuleBase:RU003985}.
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   EMBL; CP000529; ABM38742.1; -; Genomic_DNA.
DR   RefSeq; WP_011802813.1; NC_008781.1.
DR   AlphaFoldDB; A1VSW4; -.
DR   STRING; 365044.Pnap_3445; -.
DR   KEGG; pna:Pnap_3445; -.
DR   eggNOG; COG0031; Bacteria.
DR   HOGENOM; CLU_021018_1_0_4; -.
DR   OrthoDB; 9805733at2; -.
DR   UniPathway; UPA00136; UER00200.
DR   Proteomes; UP000000644; Chromosome.
DR   GO; GO:0004124; F:cysteine synthase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0006535; P:cysteine biosynthetic process from serine; IEA:UniProtKB-UniRule.
DR   CDD; cd01561; CBS_like; 1.
DR   Gene3D; 3.40.50.1100; -; 2.
DR   InterPro; IPR005856; Cys_synth.
DR   InterPro; IPR005859; CysK.
DR   InterPro; IPR001216; P-phosphate_BS.
DR   InterPro; IPR001926; TrpB-like_PALP.
DR   InterPro; IPR036052; TrpB-like_PALP_sf.
DR   NCBIfam; TIGR01139; cysK; 1.
DR   NCBIfam; TIGR01136; cysKM; 1.
DR   PANTHER; PTHR10314; CYSTATHIONINE BETA-SYNTHASE; 1.
DR   PANTHER; PTHR10314:SF194; CYSTATHIONINE BETA-SYNTHASE; 1.
DR   Pfam; PF00291; PALP; 1.
DR   SUPFAM; SSF53686; Tryptophan synthase beta subunit-like PLP-dependent enzymes; 1.
DR   PROSITE; PS00901; CYS_SYNTHASE; 1.
PE   3: Inferred from homology;
KW   Amino-acid biosynthesis {ECO:0000256|RuleBase:RU003985};
KW   Cysteine biosynthesis {ECO:0000256|ARBA:ARBA00023192,
KW   ECO:0000256|RuleBase:RU003985};
KW   Pyridoxal phosphate {ECO:0000256|ARBA:ARBA00022898,
KW   ECO:0000256|PIRSR:PIRSR605856-51};
KW   Reference proteome {ECO:0000313|Proteomes:UP000000644};
KW   Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|RuleBase:RU003985}.
FT   DOMAIN          8..286
FT                   /note="Tryptophan synthase beta chain-like PALP"
FT                   /evidence="ECO:0000259|Pfam:PF00291"
FT   MOD_RES         42
FT                   /note="N6-(pyridoxal phosphate)lysine"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR605856-51"
SQ   SEQUENCE   305 AA;  31863 MW;  BC8E4CD5B596F877 CRC64;
     MKADSILATI GNTPHVRINR LFGPDAQVWI KSERANPGGS IKDRIALSMV EDAEKSGALK
     PGGSIIEPTS GNTGIGLAMV AAVKGYKLVL VMPDSMSVER RRLMLAYGAS FDLTPRANGM
     KGAIARAQEL IAATPGSWMP QQFENPANID IHVRTTAQEI LADFPDGLDV LITGVGTGGH
     LTGCAKVLKA AWPQLKVFAV EPAASPVISG GAPAPHPIQG IGAGFIPKNL DTSLLDGVIQ
     VDAEPAREMA RRSASEEGML VGISSGATLA AIAQKLAELP AGTRVLGFNY DTGERYLSVE
     GFFPA
//