ID   TRPA_DESAL              Reviewed;         265 AA.
AC   B8FA37;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   03-MAR-2009, sequence version 1.
DT   25-MAY-2022, entry version 62.
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=Dalk_1433;
OS   Desulfatibacillum aliphaticivorans.
OC   Bacteria; Proteobacteria; Deltaproteobacteria; Desulfobacterales;
OC   Desulfobacteraceae; Desulfatibacillum.
OX   NCBI_TaxID=218208;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=AK-01;
RX   PubMed=21651686; DOI=10.1111/j.1462-2920.2011.02516.x;
RA   Callaghan A.V., Morris B.E., Pereira I.A., McInerney M.J., Austin R.N.,
RA   Groves J.T., Kukor J.J., Suflita J.M., Young L.Y., Zylstra G.J., Wawrik B.;
RT   "The genome sequence of Desulfatibacillum alkenivorans AK-01: a blueprint
RT   for anaerobic alkane oxidation.";
RL   Environ. Microbiol. 14:101-113(2012).
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; CP001322; ACL03133.1; -; Genomic_DNA.
DR   RefSeq; WP_012610568.1; NC_011768.1.
DR   AlphaFoldDB; B8FA37; -.
DR   SMR; B8FA37; -.
DR   EnsemblBacteria; ACL03133; ACL03133; Dalk_1433.
DR   KEGG; dal:Dalk_1433; -.
DR   eggNOG; COG0159; Bacteria.
DR   HOGENOM; CLU_016734_0_2_7; -.
DR   OMA; LVMTYWN; -.
DR   OrthoDB; 1456332at2; -.
DR   UniPathway; UPA00035; UER00044.
DR   Proteomes; UP000000739; 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; 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   Reference proteome; Tryptophan biosynthesis.
FT   CHAIN           1..265
FT                   /note="Tryptophan synthase alpha chain"
FT                   /id="PRO_1000117734"
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   265 AA;  28208 MW;  51AB8BFA6904EF17 CRC64;
     MSCIKNSFEA LKAKNEKALV GFVTAGDPDF GKSVEIVKAM CEGGMDVLEL GIPFSDPTAD
     GPVIQRSSQR ALSSGMSLPK VLEMVKIVRG FTKIPIVLFG YYNPIFSYGG KRFYEDALAA
     GADGVLIVDL PPEESAELTS LWEGDDFDFI RLVAPTTGQD RMKQIAGEAS GFIYLVSMTG
     VTGSQGLDSS KVADVNAPLK AVTDLPVCVG FGISTPEHVK AVAAVSDGVV VGSAFERLIE
     ENLENRGLHT MVQEYTESLK AATRG