ID   TRPA_SALAI              Reviewed;         267 AA.
AC   A8LX37;
DT   20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT   04-DEC-2007, sequence version 1.
DT   25-MAY-2022, entry version 74.
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=Sare_3395;
OS   Salinispora arenicola (strain CNS-205).
OC   Bacteria; Actinobacteria; Micromonosporales; Micromonosporaceae;
OC   Salinispora.
OX   NCBI_TaxID=391037;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=CNS-205;
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., Foster B., Schmutz J., Larimer F., Land M., Hauser L.,
RA   Kyrpides N., Ivanova N., Jensen P.R., Moore B.S., Penn K., Jenkins C.,
RA   Udwary D., Xiang L., Gontang E., Richardson P.;
RT   "Complete sequence of Salinispora arenicola CNS-205.";
RL   Submitted (OCT-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}.
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DR   EMBL; CP000850; ABV99197.1; -; Genomic_DNA.
DR   RefSeq; WP_012183489.1; NC_009953.1.
DR   AlphaFoldDB; A8LX37; -.
DR   SMR; A8LX37; -.
DR   STRING; 391037.Sare_3395; -.
DR   EnsemblBacteria; ABV99197; ABV99197; Sare_3395.
DR   GeneID; 5707839; -.
DR   KEGG; saq:Sare_3395; -.
DR   PATRIC; fig|391037.6.peg.3423; -.
DR   eggNOG; COG0159; Bacteria.
DR   HOGENOM; CLU_016734_0_0_11; -.
DR   OMA; LVMTYWN; -.
DR   OrthoDB; 912786at2; -.
DR   UniPathway; UPA00035; UER00044.
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; 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.
PE   3: Inferred from homology;
KW   Amino-acid biosynthesis; Aromatic amino acid biosynthesis; Lyase;
KW   Tryptophan biosynthesis.
FT   CHAIN           1..267
FT                   /note="Tryptophan synthase alpha chain"
FT                   /id="PRO_1000076365"
FT   ACT_SITE        49
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00131"
FT   ACT_SITE        60
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00131"
SQ   SEQUENCE   267 AA;  27106 MW;  6250D52C4C6BF577 CRC64;
     MSHIGVAFDK ARAEGRAVLV GCMPAGFPTV EGSIAAMTAM VEAGVDVIEV EIPYSDPVMD
     GPVIQRASDI ALAGGVRVAD TLRIIEAVAA TGVPVVTMTY WNPVEQYGVD AFARDLAAAG
     GTGLITPDLI PDEAQEWLAA SDAHGLDRTF LVAPSSTDTR LEMTVEHCRG FVYATALMGV
     TGARTQASAA APVLVSRVRG VTDLPVGVGL GTGTGAQAST VAGFADGVIV GSALIRCLLD
     APSLPAGLTA LRALSAELAA GVRTPAH