ID A0A1M6E2B5_9FIRM Unreviewed; 310 AA.
AC A0A1M6E2B5;
DT 15-MAR-2017, integrated into UniProtKB/TrEMBL.
DT 15-MAR-2017, sequence version 1.
DT 24-JAN-2024, entry version 23.
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 ORFNames=SAMN02745691_00837 {ECO:0000313|EMBL:SHI79637.1};
OS Parasporobacterium paucivorans DSM 15970.
OC Bacteria; Bacillota; Clostridia; Eubacteriales; Lachnospiraceae;
OC Parasporobacterium.
OX NCBI_TaxID=1122934 {ECO:0000313|EMBL:SHI79637.1, ECO:0000313|Proteomes:UP000184342};
RN [1] {ECO:0000313|EMBL:SHI79637.1, ECO:0000313|Proteomes:UP000184342}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 15970 {ECO:0000313|EMBL:SHI79637.1,
RC ECO:0000313|Proteomes:UP000184342};
RA Jaros S., Januszkiewicz K., Wedrychowicz H.;
RL Submitted (NOV-2016) 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}.
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DR EMBL; FQYT01000007; SHI79637.1; -; Genomic_DNA.
DR RefSeq; WP_073993105.1; NZ_FQYT01000007.1.
DR AlphaFoldDB; A0A1M6E2B5; -.
DR STRING; 1122934.SAMN02745691_00837; -.
DR OrthoDB; 9808024at2; -.
DR UniPathway; UPA00136; UER00200.
DR Proteomes; UP000184342; 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:UP000184342};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|RuleBase:RU003985}.
FT DOMAIN 8..297
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 181..185
FT /ligand="pyridoxal 5'-phosphate"
FT /ligand_id="ChEBI:CHEBI:597326"
FT /evidence="ECO:0000256|PIRSR:PIRSR605856-50"
FT BINDING 269
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 310 AA; 32672 MW; 673DD10BC1E87038 CRC64;
MANIKTSVTQ LVGKTPLLEL ANFEKANNLK AKIIAKLEYF NPAGSVKDRI ALAMIEEAEE
KGVLKPGSTI IEPTSGNTGI GISSIARAKG YKAVLTMPET MSVERRNLLK AYGAELVLTE
GVKGMKGAIA KAEELQKEIP GSVILGQFDN PANPKVHFET TGPEIWNDTD GKVDILVAGV
GTGGTISGVG EYLKSKNPNI QVVAVEPKDS PVLSKGTAGS HKIQGIGAGF VPTTLNTSIY
DEIIAVENED AFASGRDIAN YEGVLVGISS GAAVWAAKQL ALRPENENKV IVVILPDTGE
RYLSTALFGL
//