TRPA_ALKHC
ID TRPA_ALKHC Reviewed; 265 AA.
AC Q9KCA9;
DT 23-JAN-2002, integrated into UniProtKB/Swiss-Prot.
DT 01-OCT-2000, sequence version 1.
DT 03-AUG-2022, entry version 115.
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=BH1664;
OS Alkalihalobacillus halodurans (strain ATCC BAA-125 / DSM 18197 / FERM 7344
OS / JCM 9153 / C-125) (Bacillus halodurans).
OC Bacteria; Firmicutes; Bacilli; Bacillales; Bacillaceae; Alkalihalobacillus.
OX NCBI_TaxID=272558;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC BAA-125 / DSM 18197 / FERM 7344 / JCM 9153 / C-125;
RX PubMed=11058132; DOI=10.1093/nar/28.21.4317;
RA Takami H., Nakasone K., Takaki Y., Maeno G., Sasaki R., Masui N., Fuji F.,
RA Hirama C., Nakamura Y., Ogasawara N., Kuhara S., Horikoshi K.;
RT "Complete genome sequence of the alkaliphilic bacterium Bacillus halodurans
RT and genomic sequence comparison with Bacillus subtilis.";
RL Nucleic Acids Res. 28:4317-4331(2000).
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; BA000004; BAB05383.1; -; Genomic_DNA.
DR PIR; H83857; H83857.
DR RefSeq; WP_010897826.1; NC_002570.2.
DR AlphaFoldDB; Q9KCA9; -.
DR SMR; Q9KCA9; -.
DR STRING; 272558.10174281; -.
DR EnsemblBacteria; BAB05383; BAB05383; BAB05383.
DR KEGG; bha:BH1664; -.
DR eggNOG; COG0159; Bacteria.
DR HOGENOM; CLU_016734_0_4_9; -.
DR OMA; LVMTYWN; -.
DR OrthoDB; 912786at2; -.
DR UniPathway; UPA00035; UER00044.
DR Proteomes; UP000001258; 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..265
FT /note="Tryptophan synthase alpha chain"
FT /id="PRO_0000098738"
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 265 AA; 28817 MW; D57DA8AE9B7F5E0A CRC64;
MSRLEAAVNG KKNLFIPFIT AGDPNPEVTI ELALTLEEAG ADILELGIPY SDPLADGPVI
QAASKRALKH EMTLEKALSL VPKMRAQGLT IPVIVFTYVN PLLQYGEEQF VKRAADYQVD
GILVPDMPFE EGEVLQAACQ EHNLSLISLV APTSNKRIEK IAARAQGFVY CVSSLGVTGL
RDELDPRVHE FLQTVKTHAS VPVVVGFGIS RREQVEALAE NADGVVVGSA IVKLVGELED
ELNDPEKLED GLFKIKRFVS ELISS
