ID A0A059LLZ0_9CHLO Unreviewed; 304 AA.
AC A0A059LLZ0;
DT 09-JUL-2014, integrated into UniProtKB/TrEMBL.
DT 09-JUL-2014, sequence version 1.
DT 27-MAR-2024, entry version 37.
DE RecName: Full=Cysteine synthase {ECO:0000256|RuleBase:RU003985};
DE EC=2.5.1.47 {ECO:0000256|RuleBase:RU003985};
GN ORFNames=H632_c738p0 {ECO:0000313|EMBL:KDD75333.1};
OS Helicosporidium sp. ATCC 50920.
OC Eukaryota; Viridiplantae; Chlorophyta; core chlorophytes; Trebouxiophyceae;
OC Chlorellales; Chlorellaceae; Helicosporidium.
OX NCBI_TaxID=1291522 {ECO:0000313|EMBL:KDD75333.1, ECO:0000313|Proteomes:UP000026042};
RN [1] {ECO:0000313|EMBL:KDD75333.1, ECO:0000313|Proteomes:UP000026042}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 50920 {ECO:0000313|EMBL:KDD75333.1,
RC ECO:0000313|Proteomes:UP000026042};
RX PubMed=24809511;
RA Pombert J.F., Blouin N.A., Lane C., Boucias D., Keeling P.J.;
RT "A lack of parasitic reduction in the obligate parasitic green alga
RT helicosporidium.";
RL PLoS Genet. 10:E1004355-E1004355(2014).
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|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:KDD75333.1}.
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; AYPS01000738; KDD75333.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A059LLZ0; -.
DR STRING; 1291522.A0A059LLZ0; -.
DR OrthoDB; 5487987at2759; -.
DR Proteomes; UP000026042; 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:SF241; CYSTEINE SYNTHASE, MITOCHONDRIAL; 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|PIRSR:PIRSR605856-50,
KW ECO:0000256|RuleBase:RU003985};
KW Reference proteome {ECO:0000313|Proteomes:UP000026042};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|RuleBase:RU003985}.
FT DOMAIN 2..279
FT /note="Tryptophan synthase beta chain-like PALP"
FT /evidence="ECO:0000259|Pfam:PF00291"
FT BINDING 60
FT /ligand="pyridoxal 5'-phosphate"
FT /ligand_id="ChEBI:CHEBI:597326"
FT /evidence="ECO:0000256|PIRSR:PIRSR605856-50"
FT BINDING 164..168
FT /ligand="pyridoxal 5'-phosphate"
FT /ligand_id="ChEBI:CHEBI:597326"
FT /evidence="ECO:0000256|PIRSR:PIRSR605856-50"
FT BINDING 252
FT /ligand="pyridoxal 5'-phosphate"
FT /ligand_id="ChEBI:CHEBI:597326"
FT /evidence="ECO:0000256|PIRSR:PIRSR605856-50"
FT MOD_RES 29
FT /note="N6-(pyridoxal phosphate)lysine"
FT /evidence="ECO:0000256|PIRSR:PIRSR605856-51"
SQ SEQUENCE 304 AA; 31925 MW; 47000BAE65DE2051 CRC64;
MVFLDKVTRG AGARVAAKLE IMEPCSSVKD RIGYSMIMEA EKAGRIVPGK TTLVEPTSGN
TGIALAFISA ARGYRLVLTM PASMSLERRI LLRAFGAELI LTDPAKGMKG AVAKAEEIAA
TIPDSYILQQ FDNPANPKVH YETTGPEIWK DTEGRVDIFV AGVGTGGTIT GTGRFLKKQS
PSVQIVAVEP LESPVIGGGE PGPHMIQGIG AGFVPKNLDM SIVDEVLAVG SSEAMVAARR
LASEEGLLVG VSSGAALVAA DKLARRPENA GKLIVTVLPS MGERYLSSAL FQDLRSAAET
MSVE
//
