TRPA_SHIDS
ID TRPA_SHIDS Reviewed; 268 AA.
AC Q32GT0;
DT 15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT 06-DEC-2005, sequence version 1.
DT 25-MAY-2022, entry version 94.
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=SDY_1328;
OS Shigella dysenteriae serotype 1 (strain Sd197).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC Enterobacteriaceae; Shigella.
OX NCBI_TaxID=300267;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Sd197;
RX PubMed=16275786; DOI=10.1093/nar/gki954;
RA Yang F., Yang J., Zhang X., Chen L., Jiang Y., Yan Y., Tang X., Wang J.,
RA Xiong Z., Dong J., Xue Y., Zhu Y., Xu X., Sun L., Chen S., Nie H., Peng J.,
RA Xu J., Wang Y., Yuan Z., Wen Y., Yao Z., Shen Y., Qiang B., Hou Y., Yu J.,
RA Jin Q.;
RT "Genome dynamics and diversity of Shigella species, the etiologic agents of
RT bacillary dysentery.";
RL Nucleic Acids Res. 33:6445-6458(2005).
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; CP000034; ABB61475.1; -; Genomic_DNA.
DR RefSeq; WP_000443088.1; NC_007606.1.
DR RefSeq; YP_402966.1; NC_007606.1.
DR AlphaFoldDB; Q32GT0; -.
DR SMR; Q32GT0; -.
DR STRING; 300267.SDY_1328; -.
DR EnsemblBacteria; ABB61475; ABB61475; SDY_1328.
DR KEGG; sdy:SDY_1328; -.
DR PATRIC; fig|300267.13.peg.1578; -.
DR HOGENOM; CLU_016734_0_4_6; -.
DR OMA; LVMTYWN; -.
DR UniPathway; UPA00035; UER00044.
DR Proteomes; UP000002716; 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 Reference proteome; Tryptophan biosynthesis.
FT CHAIN 1..268
FT /note="Tryptophan synthase alpha chain"
FT /id="PRO_1000018281"
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 268 AA; 28662 MW; 028BB556A6FFFA59 CRC64;
MERYESLFAQ LKERKEGAFV PFVTLGDPGI EQSLKIIDTL IEAGADALEL GIPFSDPLAD
GPTIQNATLR AFAAGVTPAQ CIEMLALIRQ KHPTIPIGLL MYANLVFNKG IDEFYAQCEK
VGVDSVLVAD VPVEESAPFR QAALRHNVAP IFICPPNADD DLLRQIASYG RGYTYLLSRA
GVTGAENRAA LPLNHLVAKL KEYNAAPPLQ GFGISAPDQV KAAIDAGAAG AISGSAIVKI
IEQHINEPEK MLAALKAFVQ PMKAATRS
