ID A0A0J1F5N1_9FIRM Unreviewed; 308 AA.
AC A0A0J1F5N1;
DT 14-OCT-2015, integrated into UniProtKB/TrEMBL.
DT 14-OCT-2015, sequence version 1.
DT 24-JAN-2024, entry version 29.
DE RecName: Full=Cysteine synthase {ECO:0000256|ARBA:ARBA00019371, ECO:0000256|RuleBase:RU003985};
DE EC=2.5.1.47 {ECO:0000256|ARBA:ARBA00012681, ECO:0000256|RuleBase:RU003985};
GN Name=cysK_2 {ECO:0000313|EMBL:KLU58694.1};
GN ORFNames=CEB3_c47100 {ECO:0000313|EMBL:KLU58694.1};
OS Peptococcaceae bacterium CEB3.
OC Bacteria; Bacillota; Clostridia; Eubacteriales; Peptococcaceae.
OX NCBI_TaxID=999898 {ECO:0000313|EMBL:KLU58694.1, ECO:0000313|Proteomes:UP000035957};
RN [1] {ECO:0000313|EMBL:KLU58694.1, ECO:0000313|Proteomes:UP000035957}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CEB3 {ECO:0000313|EMBL:KLU58694.1,
RC ECO:0000313|Proteomes:UP000035957};
RA Poehlein A., Petzsch P., Johnson B.D., Schloemann M., Daniel R.,
RA Muehling M.;
RT "Genome sequence of the moderately acidophilic sulfate reducing
RT Peptococcaceae bacterium strain CEB3.";
RL Submitted (JUN-2015) 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:PIRSR605856-50, ECO:0000256|RuleBase:RU003985};
CC -!- PATHWAY: Amino-acid biosynthesis; L-cysteine biosynthesis; L-cysteine
CC from L-serine: step 2/2. {ECO:0000256|ARBA:ARBA00004962}.
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:KLU58694.1}.
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DR EMBL; LDXJ01000064; KLU58694.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A0J1F5N1; -.
DR STRING; 999898.CEB3_c47100; -.
DR PATRIC; fig|999898.3.peg.5271; -.
DR UniPathway; UPA00136; UER00200.
DR Proteomes; UP000035957; 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:PIRSR605856-50};
KW Reference proteome {ECO:0000313|Proteomes:UP000035957};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|RuleBase:RU003985}.
FT DOMAIN 10..293
FT /note="Tryptophan synthase beta chain-like PALP"
FT /evidence="ECO:0000259|Pfam:PF00291"
FT BINDING 77
FT /ligand="pyridoxal 5'-phosphate"
FT /ligand_id="ChEBI:CHEBI:597326"
FT /evidence="ECO:0000256|PIRSR:PIRSR605856-50"
FT BINDING 180..184
FT /ligand="pyridoxal 5'-phosphate"
FT /ligand_id="ChEBI:CHEBI:597326"
FT /evidence="ECO:0000256|PIRSR:PIRSR605856-50"
FT BINDING 268
FT /ligand="pyridoxal 5'-phosphate"
FT /ligand_id="ChEBI:CHEBI:597326"
FT /evidence="ECO:0000256|PIRSR:PIRSR605856-50"
FT MOD_RES 47
FT /note="N6-(pyridoxal phosphate)lysine"
FT /evidence="ECO:0000256|PIRSR:PIRSR605856-51"
SQ SEQUENCE 308 AA; 32117 MW; 35117983621A78F1 CRC64;
MINLKKADSV TDLIGQTPVV RLQRVVKPGM ADVYVKLESF NPGGSVKDRI ALSMVLAAEE
QGLLPPGGTI VEPTSGNTGI GLAMVAAARG YKLILVMPET MSVERRMLLA AYGAECVLSP
GAKGMNGAIE EAERLVREHP GYFIPQQFEN AANPEAHRRT TALELLEQLG EIDAFVAGVG
TGGTVTGVGE VLKAKLPGVR VVAVEPSASA VLSGEEPGPH KIQGIGAGFV PKVLNRQVLD
EVITVSNEGA LEMGRRLARE EGLLVGISSG AAVTAALQVA ASLGEGKTVA VLAADTGERY
LSTEMFRL
//
