ID   TRPA_DEHMB              Reviewed;         255 AA.
AC   A5FPL3;
DT   20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT   12-JUN-2007, sequence version 1.
DT   03-AUG-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};
GN   OrderedLocusNames=DehaBAV1_1278;
OS   Dehalococcoides mccartyi (strain ATCC BAA-2100 / JCM 16839 / KCTC 5957 /
OS   BAV1).
OC   Bacteria; Chloroflexi; Dehalococcoidia; Dehalococcoidales;
OC   Dehalococcoidaceae; Dehalococcoides.
OX   NCBI_TaxID=216389;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-2100 / JCM 16839 / KCTC 5957 / BAV1;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C.,
RA   Glavina del Rio T., Hammon N., Israni S., Pitluck S., Lowry S., Clum A.,
RA   Schmutz J., Larimer F., Land M., Hauser L., Kyrpides N., Kim E.,
RA   Ritalahti K.M., Loeffler F., Richardson P.;
RT   "Complete sequence of Dehalococcoides sp. BAV1.";
RL   Submitted (MAY-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; CP000688; ABQ17857.1; -; Genomic_DNA.
DR   RefSeq; WP_012034199.1; NC_009455.1.
DR   AlphaFoldDB; A5FPL3; -.
DR   SMR; A5FPL3; -.
DR   KEGG; deb:DehaBAV1_1278; -.
DR   PATRIC; fig|216389.18.peg.1347; -.
DR   HOGENOM; CLU_016734_0_2_0; -.
DR   OMA; LVMTYWN; -.
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; 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..255
FT                   /note="Tryptophan synthase alpha chain"
FT                   /id="PRO_1000076353"
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   255 AA;  27627 MW;  096C4A6D53952FF0 CRC64;
     MSRISDAFQK RKSLIAYITV GYPDIETTLR LVPLLEENGV DIIELGIPFS DPLADGVTIQ
     NASYQALQNG VTPEVCLSVA ALLKEKISIP MVFMGYYNPI YNYGLTKFCQ KCATAGVSGF
     IIPDLPPGEA QDIDFAAREA GLDIIFLLAP TSTDERIKLV AAKSRGFIYL VSHSGVTGAT
     ANLPADLSSF VNRVRKTARQ PLAVGFGIST PEQAQNIAKF SDGIIVGSRI LQLVQTDPSL
     EKVATFIRQL RQSLD