ID   TRPA_GRAFK              Reviewed;         256 AA.
AC   A0M4T5;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   12-DEC-2006, sequence version 1.
DT   25-MAY-2022, entry version 84.
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=GFO_2674;
OS   Gramella forsetii (strain KT0803).
OC   Bacteria; Bacteroidetes; Flavobacteriia; Flavobacteriales;
OC   Flavobacteriaceae; Gramella.
OX   NCBI_TaxID=411154;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=KT0803;
RX   PubMed=17107561; DOI=10.1111/j.1462-2920.2006.01152.x;
RA   Bauer M., Kube M., Teeling H., Richter M., Lombardot T., Allers E.,
RA   Wuerdemann C.A., Quast C., Kuhl H., Knaust F., Woebken D., Bischof K.,
RA   Mussmann M., Choudhuri J.V., Meyer F., Reinhardt R., Amann R.I.,
RA   Gloeckner F.O.;
RT   "Whole genome analysis of the marine Bacteroidetes'Gramella forsetii'
RT   reveals adaptations to degradation of polymeric organic matter.";
RL   Environ. Microbiol. 8:2201-2213(2006).
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; CU207366; CAL67630.1; -; Genomic_DNA.
DR   RefSeq; WP_011710533.1; NC_008571.1.
DR   AlphaFoldDB; A0M4T5; -.
DR   SMR; A0M4T5; -.
DR   STRING; 411154.GFO_2674; -.
DR   EnsemblBacteria; CAL67630; CAL67630; GFO_2674.
DR   KEGG; gfo:GFO_2674; -.
DR   eggNOG; COG0159; Bacteria.
DR   HOGENOM; CLU_016734_0_0_10; -.
DR   OMA; LVMTYWN; -.
DR   OrthoDB; 912786at2; -.
DR   UniPathway; UPA00035; UER00044.
DR   Proteomes; UP000000755; 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..256
FT                   /note="Tryptophan synthase alpha chain"
FT                   /id="PRO_1000018210"
FT   ACT_SITE        45
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00131"
FT   ACT_SITE        56
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00131"
SQ   SEQUENCE   256 AA;  28690 MW;  77B79B3398AD20EA CRC64;
     MNRINQKLQE DHKLLSIYFT AGYPDFEDTE KIIVDLEKSG VDFIEIGLPF SDPLADGPTI
     QKSSTKALKN GMTTSKLFEQ LKGIRNKVEI PLIIMGYFNP ILQYGVEDFC KKCQETGIDG
     LIIPDLPVDV YHEKYQELFE QYGLRNIFLI TPQTSDERIH FIDSVSNGFI YMVSSASVTG
     STSGFGEDTR AYFKRVNDLQ LKNPQIVGFG IKDNETFNQA TEYAKGAIIG SAFIKHINEN
     GTSNVGSFVK KVKALT