ID A0A2S8AAF4_9FLAO Unreviewed; 302 AA.
AC A0A2S8AAF4;
DT 18-JUL-2018, integrated into UniProtKB/TrEMBL.
DT 18-JUL-2018, sequence version 1.
DT 24-JAN-2024, entry version 18.
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 Name=cysK {ECO:0000313|EMBL:PQL91560.1};
GN ORFNames=C4S77_07045 {ECO:0000313|EMBL:PQL91560.1};
OS Apibacter adventoris.
OC Bacteria; Bacteroidota; Flavobacteriia; Flavobacteriales; Weeksellaceae;
OC Apibacter.
OX NCBI_TaxID=1679466 {ECO:0000313|EMBL:PQL91560.1, ECO:0000313|Proteomes:UP000238042};
RN [1] {ECO:0000313|EMBL:PQL91560.1, ECO:0000313|Proteomes:UP000238042}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=wkB301 {ECO:0000313|Proteomes:UP000238042};
RA Kwong W.K., Steele M.I., Moran N.A.;
RT "Genome sequences of Apibacter spp., gut symbionts of Asian honey bees.";
RL Submitted (FEB-2018) to the EMBL/GenBank/DDBJ databases.
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 -!- SIMILARITY: Belongs to the cysteine synthase/cystathionine beta-
CC synthase family. {ECO:0000256|ARBA:ARBA00007103,
CC ECO:0000256|RuleBase:RU003985}.
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:PQL91560.1}.
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DR EMBL; PSZM01000040; PQL91560.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A2S8AAF4; -.
DR OrthoDB; 9808024at2; -.
DR Proteomes; UP000238042; Unassembled WGS sequence.
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:UP000238042};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|RuleBase:RU003985}.
FT DOMAIN 7..287
FT /note="Tryptophan synthase beta chain-like PALP"
FT /evidence="ECO:0000259|Pfam:PF00291"
FT MOD_RES 41
FT /note="N6-(pyridoxal phosphate)lysine"
FT /evidence="ECO:0000256|PIRSR:PIRSR605856-51"
SQ SEQUENCE 302 AA; 32496 MW; B42FB1C774A255C8 CRC64;
MKANSILEVI GNTPHVRIKK LFPDYKVYIK LEKQNPGGSI KDRIALAMIE DAEKKGLLKA
GGTIIEPTSG NTGVGLAWIG KVKGYKVMLT MPESMSIERR RLMSAYGAEL VLTPREQGMK
GAIAKAEELN KKIQNSFVPQ QFKNPANPKI HAKTTAKEII DDFPEGIDAL ISGVGTGGHI
TGVGEMLKEK FPTIKVFAVE PTDSPVISGG KPGPHPLQGI GAGFIPDTLN VKLLDGTIQI
SKDEAFEYTK RLAFEEGILG GISTGASLAA VAKKIKELPK GATVLTFNYD TGERYFSVEG
LF
//
