ID   TRPA_CHLL2              Reviewed;         267 AA.
AC   B3EGF7;
DT   24-MAR-2009, integrated into UniProtKB/Swiss-Prot.
DT   22-JUL-2008, sequence version 1.
DT   25-MAY-2022, entry version 71.
DE   RecName: Full=Tryptophan synthase alpha chain {ECO:0000255|HAMAP-Rule:MF_00131};
DE            EC=4.2.1.20 {ECO:0000255|HAMAP-Rule:MF_00131};
GN   Name=trpA {ECO:0000255|HAMAP-Rule:MF_00131}; OrderedLocusNames=Clim_0501;
OS   Chlorobium limicola (strain DSM 245 / NBRC 103803 / 6330).
OC   Bacteria; Chlorobi; Chlorobia; Chlorobiales; Chlorobiaceae;
OC   Chlorobium/Pelodictyon group; Chlorobium.
OX   NCBI_TaxID=290315;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 245 / NBRC 103803 / 6330;
RG   US DOE Joint Genome Institute;
RA   Lucas S., Copeland A., Lapidus A., Glavina del Rio T., Dalin E., Tice H.,
RA   Bruce D., Goodwin L., Pitluck S., Schmutz J., Larimer F., Land M.,
RA   Hauser L., Kyrpides N., Ovchinnikova G., Zhao F., Li T., Liu Z.,
RA   Overmann J., Bryant D.A., Richardson P.;
RT   "Complete sequence of Chlorobium limicola DSM 245.";
RL   Submitted (MAY-2008) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: The alpha subunit is responsible for the aldol cleavage of
CC       indoleglycerol phosphate to indole and glyceraldehyde 3-phosphate.
CC       {ECO:0000255|HAMAP-Rule:MF_00131}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=(1S,2R)-1-C-(indol-3-yl)glycerol 3-phosphate + L-serine = D-
CC         glyceraldehyde 3-phosphate + H2O + L-tryptophan;
CC         Xref=Rhea:RHEA:10532, ChEBI:CHEBI:15377, ChEBI:CHEBI:33384,
CC         ChEBI:CHEBI:57912, ChEBI:CHEBI:58866, ChEBI:CHEBI:59776; EC=4.2.1.20;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00131};
CC   -!- PATHWAY: Amino-acid biosynthesis; L-tryptophan biosynthesis; L-
CC       tryptophan from chorismate: step 5/5. {ECO:0000255|HAMAP-
CC       Rule:MF_00131}.
CC   -!- SUBUNIT: Tetramer of two alpha and two beta chains. {ECO:0000255|HAMAP-
CC       Rule:MF_00131}.
CC   -!- SIMILARITY: Belongs to the TrpA family. {ECO:0000255|HAMAP-
CC       Rule:MF_00131}.
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; CP001097; ACD89594.1; -; Genomic_DNA.
DR   RefSeq; WP_012465475.1; NC_010803.1.
DR   AlphaFoldDB; B3EGF7; -.
DR   SMR; B3EGF7; -.
DR   STRING; 290315.Clim_0501; -.
DR   EnsemblBacteria; ACD89594; ACD89594; Clim_0501.
DR   KEGG; cli:Clim_0501; -.
DR   eggNOG; COG0159; Bacteria.
DR   HOGENOM; CLU_016734_0_0_10; -.
DR   OMA; LVMTYWN; -.
DR   OrthoDB; 912786at2; -.
DR   UniPathway; UPA00035; UER00044.
DR   Proteomes; UP000008841; Chromosome.
DR   GO; GO:0004834; F:tryptophan synthase activity; IEA:UniProtKB-UniRule.
DR   CDD; cd04724; Tryptophan_synthase_alpha; 1.
DR   Gene3D; 3.20.20.70; -; 1.
DR   HAMAP; MF_00131; Trp_synth_alpha; 1.
DR   InterPro; IPR013785; Aldolase_TIM.
DR   InterPro; IPR011060; RibuloseP-bd_barrel.
DR   InterPro; IPR018204; Trp_synthase_alpha_AS.
DR   InterPro; IPR002028; Trp_synthase_suA.
DR   PANTHER; PTHR43406; PTHR43406; 1.
DR   Pfam; PF00290; Trp_syntA; 1.
DR   SUPFAM; SSF51366; SSF51366; 1.
DR   TIGRFAMs; TIGR00262; trpA; 1.
DR   PROSITE; PS00167; TRP_SYNTHASE_ALPHA; 1.
PE   3: Inferred from homology;
KW   Amino-acid biosynthesis; Aromatic amino acid biosynthesis; Lyase;
KW   Reference proteome; Tryptophan biosynthesis.
FT   CHAIN           1..267
FT                   /note="Tryptophan synthase alpha chain"
FT                   /id="PRO_1000095702"
FT   ACT_SITE        47
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00131"
FT   ACT_SITE        58
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00131"
SQ   SEQUENCE   267 AA;  28894 MW;  5EA1DE70BF0E4B3C CRC64;
     MKQNRIASLV EQDKKLLVAY YMPEYPVAGA TLPVLEALQE NGADIIELGI PFSDPVGDGP
     VIQEAAQRAI RNGVTVKNLL ETVHNARRGA GCKAITVPII LMGYCNPLIA YGGDCFLNDA
     VEAGVDGLLL PDLPPEEAED FLERAKSFGL TVVFLISPVT PPDRIEMIDS LSTDFSYCLA
     VNATTGTAKL AGEDADAAIE EYLKRVRQHT RKKFVVGFGI RDKARVMQMW KLADGAVVGT
     ALLQRLAAAH TPGETARLAG EFWQALR