ID C3TCC8_ECOLX Unreviewed; 268 AA.
AC C3TCC8;
DT 16-JUN-2009, integrated into UniProtKB/TrEMBL.
DT 16-JUN-2009, sequence version 1.
DT 24-JAN-2024, entry version 99.
DE RecName: Full=Tryptophan synthase alpha chain {ECO:0000256|HAMAP-Rule:MF_00131};
DE EC=4.2.1.20 {ECO:0000256|HAMAP-Rule:MF_00131};
GN Name=trpA {ECO:0000256|HAMAP-Rule:MF_00131};
GN ORFNames=C9E67_15910 {ECO:0000313|EMBL:QCL48526.1}, ECs1832
GN {ECO:0000313|EMBL:ACI84362.1};
OS Escherichia coli.
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Enterobacterales;
OC Enterobacteriaceae; Escherichia.
OX NCBI_TaxID=562 {ECO:0000313|EMBL:ACI84362.1};
RN [1] {ECO:0000313|EMBL:ACI84362.1}
RP NUCLEOTIDE SEQUENCE.
RC STRAIN=86-24 {ECO:0000313|EMBL:ACI84362.1}, 87-14
RC {ECO:0000313|EMBL:ACI84363.1}, and TW14359
RC {ECO:0000313|EMBL:ACI84365.1};
RX PubMed=19439656; DOI=10.1073/pnas.0812949106;
RA Leopold S.R., Magrini V., Holt N.J., Shaikh N., Mardis E.R., Cagno J.,
RA Ogura Y., Iguchi A., Hayashi T., Mellmann A., Karch H., Besser T.E.,
RA Sawyer S.A., Whittam T.S., Tarr P.I.;
RT "A precise reconstruction of the emergence and constrained radiations of
RT Escherichia coli O157 portrayed by backbone concatenomic analysis.";
RL Proc. Natl. Acad. Sci. U.S.A. 106:8713-8718(2009).
RN [2] {ECO:0000313|EMBL:QCL48526.1, ECO:0000313|Proteomes:UP000298553}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=143 {ECO:0000313|EMBL:QCL48526.1,
RC ECO:0000313|Proteomes:UP000298553};
RA Bono J.L., Arthur T.M.;
RT "WGA of Escherichia coli O157:H7: comparison of multiple isolates.";
RL Submitted (APR-2018) 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:0000256|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:0000256|ARBA:ARBA00000003, ECO:0000256|HAMAP-
CC Rule:MF_00131};
CC -!- PATHWAY: Amino-acid biosynthesis; L-tryptophan biosynthesis; L-
CC tryptophan from chorismate: step 5/5. {ECO:0000256|ARBA:ARBA00004733,
CC ECO:0000256|HAMAP-Rule:MF_00131}.
CC -!- SUBUNIT: Tetramer of two alpha and two beta chains.
CC {ECO:0000256|ARBA:ARBA00011270, ECO:0000256|HAMAP-Rule:MF_00131}.
CC -!- SIMILARITY: Belongs to the TrpA family. {ECO:0000256|HAMAP-
CC Rule:MF_00131, ECO:0000256|RuleBase:RU003662}.
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DR EMBL; EU901816; ACI84362.1; -; Genomic_DNA.
DR EMBL; EU901817; ACI84363.1; -; Genomic_DNA.
DR EMBL; EU901819; ACI84365.1; -; Genomic_DNA.
DR EMBL; CP028607; QCL48526.1; -; Genomic_DNA.
DR RefSeq; WP_000443092.1; NZ_VODI01000062.1.
DR AlphaFoldDB; C3TCC8; -.
DR SMR; C3TCC8; -.
DR PATRIC; fig|562.7073.peg.3629; -.
DR OMA; LVMTYWN; -.
DR UniPathway; UPA00035; UER00044.
DR Proteomes; UP000298553; 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; Aldolase class I; 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 NCBIfam; TIGR00262; trpA; 1.
DR PANTHER; PTHR43406:SF1; TRYPTOPHAN SYNTHASE ALPHA CHAIN, CHLOROPLASTIC; 1.
DR PANTHER; PTHR43406; TRYPTOPHAN SYNTHASE, ALPHA CHAIN; 1.
DR Pfam; PF00290; Trp_syntA; 1.
DR SUPFAM; SSF51366; Ribulose-phoshate binding barrel; 1.
DR PROSITE; PS00167; TRP_SYNTHASE_ALPHA; 1.
PE 3: Inferred from homology;
KW Amino-acid biosynthesis {ECO:0000256|ARBA:ARBA00022605, ECO:0000256|HAMAP-
KW Rule:MF_00131};
KW Aromatic amino acid biosynthesis {ECO:0000256|ARBA:ARBA00023141,
KW ECO:0000256|HAMAP-Rule:MF_00131};
KW Lyase {ECO:0000256|ARBA:ARBA00023239, ECO:0000256|HAMAP-Rule:MF_00131};
KW Tryptophan biosynthesis {ECO:0000256|ARBA:ARBA00022822, ECO:0000256|HAMAP-
KW Rule:MF_00131}.
FT ACT_SITE 49
FT /note="Proton acceptor"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00131"
FT ACT_SITE 60
FT /note="Proton acceptor"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00131"
SQ SEQUENCE 268 AA; 28725 MW; BF25E9BF07094470 CRC64;
MERYESLFAQ LKERKEGAFV PFVTLGDPGI EQSLKIIDTL IEAGADTLEL GIPFSDPLAD
GPTIQNATLR AFAAGVTPAQ CFEMLALIRQ KHPTIPIGLL MYANLVFNKG IDEFYAQCEK
VGVDSVLVAD VPVEESAPFR QAALRHNVAP IFICPPNADD DLLRQIASYG RGYTYLLSRA
GVTGAENRAA LPLNHLVAKL KEYNAAPPLQ GFGISAPDQV KAAIDAGAAG AISGSAIVKI
IEQHINEPKK MLAALKAFVQ PMKAATRS
//
