ID   TRPA_ERYLH              Reviewed;         259 AA.
AC   Q2N9N0;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   07-FEB-2006, sequence version 1.
DT   03-AUG-2022, entry version 86.
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=ELI_07595;
OS   Erythrobacter litoralis (strain HTCC2594).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Sphingomonadales;
OC   Erythrobacteraceae; Erythrobacter/Porphyrobacter group; Erythrobacter.
OX   NCBI_TaxID=314225;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=HTCC2594;
RX   PubMed=19168610; DOI=10.1128/jb.00026-09;
RA   Oh H.M., Giovannoni S.J., Ferriera S., Johnson J., Cho J.C.;
RT   "Complete genome sequence of Erythrobacter litoralis HTCC2594.";
RL   J. Bacteriol. 191:2419-2420(2009).
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; CP000157; ABC63611.1; -; Genomic_DNA.
DR   RefSeq; WP_011414445.1; NC_007722.1.
DR   AlphaFoldDB; Q2N9N0; -.
DR   SMR; Q2N9N0; -.
DR   STRING; 314225.ELI_07595; -.
DR   PRIDE; Q2N9N0; -.
DR   EnsemblBacteria; ABC63611; ABC63611; ELI_07595.
DR   KEGG; eli:ELI_07595; -.
DR   eggNOG; COG0159; Bacteria.
DR   HOGENOM; CLU_016734_0_0_5; -.
DR   OMA; LVMTYWN; -.
DR   OrthoDB; 912786at2; -.
DR   UniPathway; UPA00035; UER00044.
DR   Proteomes; UP000008808; 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_1000018200"
FT   ACT_SITE        42
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00131"
FT   ACT_SITE        53
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00131"
SQ   SEQUENCE   259 AA;  26974 MW;  8613877C6AC3DAA2 CRC64;
     MTRLQNAFSK PHAAFVAFIT AGDGDTAANL DALVAGGADV IELGMPFTDP MADGPAIQAA
     NIRSLARGTT TRDVLMIANE FRERHPEVPL VLMGYANPMV RRGPEWFAAE CKGCGVDGVI
     CVDIPPEEDA ELGPALRAAG IAPIRLATPT TDAKRLPAVL EGCEGFVYYV SVAGITGKQQ
     AALDTIESNV ARIKRSTDLP VAVGFGVRTP EQAGAIARVA DGVVVGSALV ELVGEFGTEA
     PAKLQELTKA LADAVHSAR