ID TRPA_RHILW Reviewed; 279 AA.
AC B5ZV71;
DT 24-MAR-2009, integrated into UniProtKB/Swiss-Prot.
DT 25-NOV-2008, sequence version 1.
DT 27-MAR-2024, entry version 91.
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=Rleg2_3955;
OS Rhizobium leguminosarum bv. trifolii (strain WSM2304).
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Hyphomicrobiales;
OC Rhizobiaceae; Rhizobium/Agrobacterium group; Rhizobium.
OX NCBI_TaxID=395492;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=WSM2304;
RX PubMed=21304679; DOI=10.4056/sigs.44642;
RA Reeve W., O'Hara G., Chain P., Ardley J., Brau L., Nandesena K., Tiwari R.,
RA Malfatti S., Kiss H., Lapidus A., Copeland A., Nolan M., Land M.,
RA Ivanova N., Mavromatis K., Markowitz V., Kyrpides N., Melino V., Denton M.,
RA Yates R., Howieson J.;
RT "Complete genome sequence of Rhizobium leguminosarum bv trifolii strain
RT WSM2304, an effective microsymbiont of the South American clover Trifolium
RT polymorphum.";
RL Stand. Genomic Sci. 2:66-76(2010).
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; CP001191; ACI57217.1; -; Genomic_DNA.
DR RefSeq; WP_012559405.1; NC_011369.1.
DR AlphaFoldDB; B5ZV71; -.
DR SMR; B5ZV71; -.
DR STRING; 395492.Rleg2_3955; -.
DR KEGG; rlt:Rleg2_3955; -.
DR eggNOG; COG0159; Bacteria.
DR HOGENOM; CLU_016734_0_0_5; -.
DR UniPathway; UPA00035; UER00044.
DR Proteomes; UP000008330; 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; Aromatic amino acid biosynthesis; Lyase;
KW Tryptophan biosynthesis.
FT CHAIN 1..279
FT /note="Tryptophan synthase alpha chain"
FT /id="PRO_1000095744"
FT ACT_SITE 50
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00131"
FT ACT_SITE 61
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00131"
SQ SEQUENCE 279 AA; 29466 MW; 653EC370927C5A39 CRC64;
MTARMDKRFA ELKAEGRPAL VTYFMGGDPD YDTSLGIMKA LPEAGSDIIE LGMPFSDPMA
DGPAIQLAGQ RALKGGQTLK KTLQLAADFR KTDDATPIVM MGYYNPIYIY GVEKFLDDAI
AAGIDGLIVV DLPPEMDDEL CIPAIRKGIN FIRLATPTTD EKRLPKVLKN TSGFVYYVSM
NGITGSALPD PSLVSGAVER IKQHTQLPVC VGFGVKTAEH AKVIGGSADG VVVGTAIVNQ
VATSLTSDGK ATADTVQAVA TLVRGLSTGT RSARLVAAE
//
