ID B3CIP4_9BACE Unreviewed; 318 AA.
AC B3CIP4;
DT 22-JUL-2008, integrated into UniProtKB/TrEMBL.
DT 22-JUL-2008, sequence version 1.
DT 24-JAN-2024, entry version 69.
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:EDV04101.1};
GN ORFNames=BACINT_03228 {ECO:0000313|EMBL:EDV04101.1};
OS Bacteroides intestinalis DSM 17393.
OC Bacteria; Bacteroidota; Bacteroidia; Bacteroidales; Bacteroidaceae;
OC Bacteroides.
OX NCBI_TaxID=471870 {ECO:0000313|EMBL:EDV04101.1, ECO:0000313|Proteomes:UP000004596};
RN [1] {ECO:0000313|EMBL:EDV04101.1, ECO:0000313|Proteomes:UP000004596}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 17393 {ECO:0000313|EMBL:EDV04101.1,
RC ECO:0000313|Proteomes:UP000004596};
RA Sudarsanam P., Ley R., Guruge J., Turnbaugh P.J., Mahowald M., Liep D.,
RA Gordon J.;
RT "Draft genome sequence of Bacteroides intestinalis (DSM 17393).";
RL Submitted (APR-2008) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|EMBL:EDV04101.1, ECO:0000313|Proteomes:UP000004596}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 17393 {ECO:0000313|EMBL:EDV04101.1,
RC ECO:0000313|Proteomes:UP000004596};
RA Fulton L., Clifton S., Fulton B., Xu J., Minx P., Pepin K.H., Johnson M.,
RA Thiruvilangam P., Bhonagiri V., Nash W.E., Mardis E.R., Wilson R.K.;
RL Submitted (APR-2008) 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 -!- 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:EDV04101.1}.
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DR EMBL; ABJL02000008; EDV04101.1; -; Genomic_DNA.
DR AlphaFoldDB; B3CIP4; -.
DR STRING; 471870.BACINT_03228; -.
DR eggNOG; COG0031; Bacteria.
DR Proteomes; UP000004596; 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 Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|RuleBase:RU003985}.
FT DOMAIN 11..299
FT /note="Tryptophan synthase beta chain-like PALP"
FT /evidence="ECO:0000259|Pfam:PF00291"
FT BINDING 79
FT /ligand="pyridoxal 5'-phosphate"
FT /ligand_id="ChEBI:CHEBI:597326"
FT /evidence="ECO:0000256|PIRSR:PIRSR605856-50"
FT BINDING 183..187
FT /ligand="pyridoxal 5'-phosphate"
FT /ligand_id="ChEBI:CHEBI:597326"
FT /evidence="ECO:0000256|PIRSR:PIRSR605856-50"
FT BINDING 271
FT /ligand="pyridoxal 5'-phosphate"
FT /ligand_id="ChEBI:CHEBI:597326"
FT /evidence="ECO:0000256|PIRSR:PIRSR605856-50"
FT MOD_RES 49
FT /note="N6-(pyridoxal phosphate)lysine"
FT /evidence="ECO:0000256|PIRSR:PIRSR605856-51"
SQ SEQUENCE 318 AA; 33507 MW; 1BE71E2BF67A2E96 CRC64;
MIMAKIAKNL TELIGHTPLM ELAEYSRKYG LKQNIIAKLE AFNPAGSVKD RVALAMIEDA
EASGALKPGA TIIEPTSGNT GVGLAMVATI KGYHLMLTMP ETMSIERRNL LKALGAEIVL
TDGLAGMAGS IAKAQELRAS IPGSVILQQF ENPSNAQIHT LTTGEEIWTD TDGKVDVFVA
GVGTGGTICG VARALKKHNP DVYIVAVEPE SSPVLEGGVA GPHRIQGIGA NFVPAIYDAS
VVDEVLPVPD DEAIRGGREL ASTEGLLAGI SSGAAVYAAR LLAQRPEFAD KKIVVLLPDT
GERYLSTELF AFDTYPLD
//
