TRPA_METB6
ID TRPA_METB6 Reviewed; 265 AA.
AC A7I4T3;
DT 05-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT 11-SEP-2007, sequence version 1.
DT 25-MAY-2022, entry version 71.
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=Mboo_0222;
OS Methanoregula boonei (strain DSM 21154 / JCM 14090 / 6A8).
OC Archaea; Euryarchaeota; Stenosarchaea group; Methanomicrobia;
OC Methanomicrobiales; Methanoregulaceae; Methanoregula.
OX NCBI_TaxID=456442;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 21154 / JCM 14090 / 6A8;
RX PubMed=25998264; DOI=10.1099/mic.0.000117;
RA Braeuer S., Cadillo-Quiroz H., Kyrpides N., Woyke T., Goodwin L.,
RA Detter C., Podell S., Yavitt J.B., Zinder S.H.;
RT "Genome of Methanoregula boonei 6A8 reveals adaptations to oligotrophic
RT peatland environments.";
RL Microbiology 161:1572-1581(2015).
CC -!- FUNCTION: The alpha subunit is responsible for the aldol cleavage of
CC indoleglycerol phosphate to indole and glyceraldehyde 3-phosphate.
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; CP000780; ABS54744.1; -; Genomic_DNA.
DR RefSeq; WP_011991232.1; NC_009712.1.
DR AlphaFoldDB; A7I4T3; -.
DR SMR; A7I4T3; -.
DR STRING; 456442.Mboo_0222; -.
DR EnsemblBacteria; ABS54744; ABS54744; Mboo_0222.
DR GeneID; 5411822; -.
DR KEGG; mbn:Mboo_0222; -.
DR eggNOG; arCOG01086; Archaea.
DR HOGENOM; CLU_016734_0_4_2; -.
DR OMA; LVMTYWN; -.
DR OrthoDB; 65368at2157; -.
DR UniPathway; UPA00035; UER00044.
DR Proteomes; UP000002408; 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; 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.
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_1000057854"
FT ACT_SITE 47
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00131"
FT ACT_SITE 58
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00131"
SQ SEQUENCE 265 AA; 28701 MW; 794EDDB545C17ECF CRC64;
MMGRIESVFA KKGKSAFIGF TVAGDPDKET SIRIAKALID GGTDILEFGV PFSDPVADGP
TIQRADDRAL ASCTTPDTIF AIVREVRAYS EVPIVFLTYY NTIYRRGIDR FYLEAHEAGV
DGILVADMPV EESDEVAATA EKYGIDPIFL VTQTTSNERM DTIVRHARGY LYLVSVLGVT
GARKTVAPEA LALLNRVRSH TDLPLAIGFG ISTPEHVTTC NLAGADGVIV GSAIVDIVEK
NLGNPDAMEQ DLRRYVSVMK KAAEQ