ID E8TBE0_MESCW Unreviewed; 279 AA.
AC E8TBE0;
DT 05-APR-2011, integrated into UniProtKB/TrEMBL.
DT 05-APR-2011, sequence version 1.
DT 27-MAR-2024, entry version 79.
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 OrderedLocusNames=Mesci_0451 {ECO:0000313|EMBL:ADV09623.1};
OS Mesorhizobium ciceri biovar biserrulae (strain HAMBI 2942 / LMG 23838 /
OS WSM1271).
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Hyphomicrobiales;
OC Phyllobacteriaceae; Mesorhizobium.
OX NCBI_TaxID=765698 {ECO:0000313|EMBL:ADV09623.1, ECO:0000313|Proteomes:UP000007471};
RN [1] {ECO:0000313|Proteomes:UP000007471}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=HAMBI 2942 / LMG 23838 / WSM1271
RC {ECO:0000313|Proteomes:UP000007471};
RA Lucas S., Copeland A., Lapidus A., Cheng J.-F., Goodwin L., Pitluck S.,
RA Teshima H., Detter J.C., Han C., Tapia R., Land M., Hauser L., Kyrpides N.,
RA Ivanova N., Nandasena K., Reeve W.G., Howieson J.G., O'Hara G.,
RA Tiwari R.P., Woyke T.;
RT "Complete sequence of chromosome of Mesorhizobium ciceri bv. biserrulae
RT WSM1271.";
RL Submitted (JAN-2011) 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; CP002447; ADV09623.1; -; Genomic_DNA.
DR RefSeq; WP_013528320.1; NC_014923.1.
DR RefSeq; YP_004139673.1; NC_014923.1.
DR AlphaFoldDB; E8TBE0; -.
DR STRING; 765698.Mesci_0451; -.
DR KEGG; mci:Mesci_0451; -.
DR PATRIC; fig|765698.3.peg.868; -.
DR eggNOG; COG0159; Bacteria.
DR HOGENOM; CLU_016734_0_0_5; -.
DR OrthoDB; 9804578at2; -.
DR UniPathway; UPA00035; UER00044.
DR Proteomes; UP000007471; 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 50
FT /note="Proton acceptor"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00131"
FT ACT_SITE 61
FT /note="Proton acceptor"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00131"
SQ SEQUENCE 279 AA; 29097 MW; 9FD8C53CD0B45E27 CRC64;
MATRIDRRMA KLRNEGRPAL VTYFMGGDPD YDTSLSIMKA LPGAGSDIIE LGMPFSDPMA
DGPAIQAAGL RALKGGQTLA KTLKMAADFR AGDNETPIVL MGYYNPIYIY GVDRFLKDAI
ASGIDGLIVV DLPPEMDEEL CIPALKAGIN FIRLATPTTD DKRLPKVLQN TSGFVYYVSM
TGITGSALAD TGKVAAAVKR IKGHTDLPVC VGFGVKTAEQ ARVIGANADG VVVGTAIVNA
VANVLGPKGE KTADPAEAVA TLVSGLAQGV RSARLAAAE
//
