ID   TRPA_SYNWW              Reviewed;         259 AA.
AC   Q0B002;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   17-OCT-2006, sequence version 1.
DT   25-MAY-2022, entry version 92.
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=Swol_0362;
OS   Syntrophomonas wolfei subsp. wolfei (strain DSM 2245B / Goettingen).
OC   Bacteria; Firmicutes; Clostridia; Eubacteriales; Syntrophomonadaceae;
OC   Syntrophomonas.
OX   NCBI_TaxID=335541;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 2245B / Goettingen;
RX   PubMed=21966920; DOI=10.1111/j.1462-2920.2010.02237.x;
RA   Sieber J.R., Sims D.R., Han C., Kim E., Lykidis A., Lapidus A.L.,
RA   McDonnald E., Rohlin L., Culley D.E., Gunsalus R., McInerney M.J.;
RT   "The genome of Syntrophomonas wolfei: new insights into syntrophic
RT   metabolism and biohydrogen production.";
RL   Environ. Microbiol. 12:2289-2301(2010).
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}.
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DR   EMBL; CP000448; ABI67702.1; -; Genomic_DNA.
DR   RefSeq; WP_011639810.1; NC_008346.1.
DR   AlphaFoldDB; Q0B002; -.
DR   SMR; Q0B002; -.
DR   STRING; 335541.Swol_0362; -.
DR   EnsemblBacteria; ABI67702; ABI67702; Swol_0362.
DR   KEGG; swo:Swol_0362; -.
DR   eggNOG; COG0159; Bacteria.
DR   HOGENOM; CLU_016734_0_0_9; -.
DR   OMA; LVMTYWN; -.
DR   UniPathway; UPA00035; UER00044.
DR   Proteomes; UP000001968; 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..259
FT                   /note="Tryptophan synthase alpha chain"
FT                   /id="PRO_1000198730"
FT   ACT_SITE        48
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00131"
FT   ACT_SITE        59
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00131"
SQ   SEQUENCE   259 AA;  28417 MW;  E52FA58C4657D4FB CRC64;
     MEIRNRLAQL REKEEMALIA FIMAAVPDED LCLDCIRALE QGGCDLLELG VPFTDPLADG
     EVIERFHHWG VRLGLNLKRG LDFAARVRAA CQLPLILFSY YNPILQMGLD RFAGDCRSAG
     VDAVIVPDLP LDELGRLAGQ GLELIPMLAP SSTLSRIQMA ADLDPAFIYC VSVRGVTGVR
     SLPEMEIKDY LQKVRRVSTA PLALGFGISQ PEQVRAFRGQ ADGVVIGSAL AQIIEEYESR
     PALLPGMLEK RCQALKLLS