ID U2ARK0_9FLAO Unreviewed; 253 AA.
AC U2ARK0;
DT 13-NOV-2013, integrated into UniProtKB/TrEMBL.
DT 13-NOV-2013, sequence version 1.
DT 24-JAN-2024, entry version 50.
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=HMPREF1551_02237 {ECO:0000313|EMBL:ERI62023.1};
OS Capnocytophaga sp. oral taxon 863 str. F0517.
OC Bacteria; Bacteroidota; Flavobacteriia; Flavobacteriales;
OC Flavobacteriaceae; Capnocytophaga.
OX NCBI_TaxID=1227266 {ECO:0000313|EMBL:ERI62023.1, ECO:0000313|Proteomes:UP000016494};
RN [1] {ECO:0000313|EMBL:ERI62023.1, ECO:0000313|Proteomes:UP000016494}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=F0517 {ECO:0000313|EMBL:ERI62023.1,
RC ECO:0000313|Proteomes:UP000016494};
RA Weinstock G., Sodergren E., Lobos E.A., Fulton L., Fulton R., Courtney L.,
RA Fronick C., O'Laughlin M., Godfrey J., Wilson R.M., Miner T., Farmer C.,
RA Delehaunty K., Cordes M., Minx P., Tomlinson C., Chen J., Wollam A.,
RA Pepin K.H., Bhonagiri V., Zhang X., Warren W., Mitreva M., Mardis E.R.,
RA Wilson R.K.;
RL Submitted (JUN-2013) 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}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:ERI62023.1}.
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DR EMBL; AWSR01000156; ERI62023.1; -; Genomic_DNA.
DR RefSeq; WP_021628982.1; NZ_KE992171.1.
DR AlphaFoldDB; U2ARK0; -.
DR STRING; 1227266.HMPREF1551_02237; -.
DR PATRIC; fig|1227266.3.peg.1997; -.
DR eggNOG; COG0159; Bacteria.
DR HOGENOM; CLU_016734_0_0_10; -.
DR OrthoDB; 9804578at2; -.
DR UniPathway; UPA00035; UER00044.
DR Proteomes; UP000016494; Unassembled WGS sequence.
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 47
FT /note="Proton acceptor"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00131"
FT ACT_SITE 58
FT /note="Proton acceptor"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00131"
SQ SEQUENCE 253 AA; 27204 MW; 339D1E7760C40785 CRC64;
MNNNSIAAVF AAKEKVNIGY IVAGYPSVDF TKSFLSNLDS TAIDILEIGI PYSDPLADGK
LISQASFAAS QAGVTTDTVF DLLASVKDTV HKPLVFLVYY NLVFAYGVDA FLQKCAAVGI
RGLIIPDLPY EEAQELVEKL REHHIAFIPL VSVTSEGRIA SIASLGDGFV YAVGSLGVTG
SKQVDLPRLK EFITQIRAQT SLPVSLGFGI KTHADVEQMR QYADGVIVGT SIVALTASNK
LEQTITQINE LFK
//
