TRPA_MYCTA
ID TRPA_MYCTA Reviewed; 270 AA.
AC A5U2W9;
DT 15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT 10-JUL-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=MRA_1623;
OS Mycobacterium tuberculosis (strain ATCC 25177 / H37Ra).
OC Bacteria; Actinobacteria; Corynebacteriales; Mycobacteriaceae;
OC Mycobacterium; Mycobacterium tuberculosis complex.
OX NCBI_TaxID=419947;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 25177 / H37Ra;
RX PubMed=18584054; DOI=10.1371/journal.pone.0002375;
RA Zheng H., Lu L., Wang B., Pu S., Zhang X., Zhu G., Shi W., Zhang L.,
RA Wang H., Wang S., Zhao G., Zhang Y.;
RT "Genetic basis of virulence attenuation revealed by comparative genomic
RT analysis of Mycobacterium tuberculosis strain H37Ra versus H37Rv.";
RL PLoS ONE 3:E2375-E2375(2008).
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; CP000611; ABQ73369.1; -; Genomic_DNA.
DR RefSeq; WP_003407999.1; NZ_CP016972.1.
DR AlphaFoldDB; A5U2W9; -.
DR SMR; A5U2W9; -.
DR STRING; 419947.MRA_1623; -.
DR EnsemblBacteria; ABQ73369; ABQ73369; MRA_1623.
DR GeneID; 45425581; -.
DR KEGG; mra:MRA_1623; -.
DR eggNOG; COG0159; Bacteria.
DR HOGENOM; CLU_016734_0_0_11; -.
DR OMA; LVMTYWN; -.
DR OrthoDB; 912786at2; -.
DR UniPathway; UPA00035; UER00044.
DR Proteomes; UP000001988; 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..270
FT /note="Tryptophan synthase alpha chain"
FT /id="PRO_1000018234"
FT ACT_SITE 57
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00131"
FT ACT_SITE 68
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00131"
SQ SEQUENCE 270 AA; 27728 MW; 9B55994F704A9C76 CRC64;
MVAVEQSEAS RLGPVFDSCR ANNRAALIGY LPTGYPDVPA SVAAMTALVE SGCDIIEVGV
PYSDPGMDGP TIARATEAAL RGGVRVRDTL AAVEAISIAG GRAVVMTYWN PVLRYGVDAF
ARDLAAAGGL GLITPDLIPD EAQQWLAASE EHRLDRIFLV APSSTPERLA ATVEASRGFV
YAASTMGVTG ARDAVSQAAP ELVGRVKAVS DIPVGVGLGV RSRAQAAQIA QYADGVIVGS
ALVTALTEGL PRLRALTGEL AAGVRLGMSA
