ID   TRPA_PETMO              Reviewed;         258 AA.
AC   A9BHQ2;
DT   20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT   15-JAN-2008, sequence version 1.
DT   25-MAY-2022, entry version 79.
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=Pmob_1207;
OS   Petrotoga mobilis (strain DSM 10674 / SJ95).
OC   Bacteria; Thermotogae; Petrotogales; Petrotogaceae; Petrotoga.
OX   NCBI_TaxID=403833;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 10674 / SJ95;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Glavina del Rio T., Dalin E.,
RA   Tice H., Pitluck S., Meincke L., Brettin T., Bruce D., Detter J.C., Han C.,
RA   Kuske C.R., Schmutz J., Larimer F., Land M., Hauser L., Kyrpides N.,
RA   Mikhailova N., Noll K., Richardson P.;
RT   "Complete sequence of Petroga mobilis SJ95.";
RL   Submitted (NOV-2007) 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; CP000879; ABX31924.1; -; Genomic_DNA.
DR   RefSeq; WP_012209024.1; NC_010003.1.
DR   AlphaFoldDB; A9BHQ2; -.
DR   SMR; A9BHQ2; -.
DR   STRING; 403833.Pmob_1207; -.
DR   EnsemblBacteria; ABX31924; ABX31924; Pmob_1207.
DR   KEGG; pmo:Pmob_1207; -.
DR   eggNOG; COG0159; Bacteria.
DR   HOGENOM; CLU_016734_0_0_0; -.
DR   OMA; LVMTYWN; -.
DR   OrthoDB; 912786at2; -.
DR   UniPathway; UPA00035; UER00044.
DR   Proteomes; UP000000789; 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   Tryptophan biosynthesis.
FT   CHAIN           1..258
FT                   /note="Tryptophan synthase alpha chain"
FT                   /id="PRO_1000076360"
FT   ACT_SITE        44
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00131"
FT   ACT_SITE        55
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00131"
SQ   SEQUENCE   258 AA;  28626 MW;  E275AB8865FA57D9 CRC64;
     MSKISEVFKN SKALITYVTA GDPNLEVTKE IILELNKDGV DIIEVGIPFS DPLADGPIIQ
     KASQKALKNG VTLKKIFETL NEIKEEVTCP LVLMGYYNSI LNYGIDNFIT EAVNTGISGV
     IIPDLPFDEE EEFYAKIKEN GIDPILLVAP NTSEERLKEI SKVCSGFLYC VSIMGVTGDS
     QAPMEHLKEY SQRVRKYVNI PLAIGFGIDS PTKAKNIIEY FDGIIVGSAL IKIIDENSDD
     KGKLLKEIKR FTKSLKVW