TRPG_VIBCH
ID TRPG_VIBCH Reviewed; 201 AA.
AC Q9KST3;
DT 20-JUN-2001, integrated into UniProtKB/Swiss-Prot.
DT 20-JUN-2001, sequence version 2.
DT 03-AUG-2022, entry version 121.
DE RecName: Full=Anthranilate synthase component 2;
DE Short=AS;
DE Short=ASII;
DE EC=4.1.3.27;
DE AltName: Full=Anthranilate synthase, GATase component;
DE AltName: Full=Anthranilate synthase, glutamine amidotransferase component;
GN Name=trpG; OrderedLocusNames=VC_1173;
OS Vibrio cholerae serotype O1 (strain ATCC 39315 / El Tor Inaba N16961).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Vibrionales; Vibrionaceae;
OC Vibrio.
OX NCBI_TaxID=243277;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 39315 / El Tor Inaba N16961;
RX PubMed=10952301; DOI=10.1038/35020000;
RA Heidelberg J.F., Eisen J.A., Nelson W.C., Clayton R.A., Gwinn M.L.,
RA Dodson R.J., Haft D.H., Hickey E.K., Peterson J.D., Umayam L.A., Gill S.R.,
RA Nelson K.E., Read T.D., Tettelin H., Richardson D.L., Ermolaeva M.D.,
RA Vamathevan J.J., Bass S., Qin H., Dragoi I., Sellers P., McDonald L.A.,
RA Utterback T.R., Fleischmann R.D., Nierman W.C., White O., Salzberg S.L.,
RA Smith H.O., Colwell R.R., Mekalanos J.J., Venter J.C., Fraser C.M.;
RT "DNA sequence of both chromosomes of the cholera pathogen Vibrio
RT cholerae.";
RL Nature 406:477-483(2000).
CC -!- FUNCTION: Part of a heterotetrameric complex that catalyzes the two-
CC step biosynthesis of anthranilate, an intermediate in the biosynthesis
CC of L-tryptophan. In the first step, the glutamine-binding beta subunit
CC (TrpG) of anthranilate synthase (AS) provides the glutamine
CC amidotransferase activity which generates ammonia as a substrate that,
CC along with chorismate, is used in the second step, catalyzed by the
CC large alpha subunit of AS (TrpE) to produce anthranilate. In the
CC absence of TrpG, TrpE can synthesize anthranilate directly from
CC chorismate and high concentrations of ammonia (By similarity).
CC {ECO:0000250}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=chorismate + L-glutamine = anthranilate + H(+) + L-glutamate +
CC pyruvate; Xref=Rhea:RHEA:21732, ChEBI:CHEBI:15361, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:16567, ChEBI:CHEBI:29748, ChEBI:CHEBI:29985,
CC ChEBI:CHEBI:58359; EC=4.1.3.27;
CC -!- PATHWAY: Amino-acid biosynthesis; L-tryptophan biosynthesis; L-
CC tryptophan from chorismate: step 1/5.
CC -!- SUBUNIT: Heterotetramer consisting of two non-identical subunits: a
CC beta subunit (TrpG) and a large alpha subunit (TrpE). {ECO:0000250}.
CC -!- SEQUENCE CAUTION:
CC Sequence=AAF94332.1; Type=Erroneous initiation; Note=Extended N-terminus.; Evidence={ECO:0000305};
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DR EMBL; AE003852; AAF94332.1; ALT_INIT; Genomic_DNA.
DR PIR; H82232; H82232.
DR RefSeq; NP_230818.1; NC_002505.1.
DR RefSeq; WP_001274036.1; NZ_LT906614.1.
DR AlphaFoldDB; Q9KST3; -.
DR SMR; Q9KST3; -.
DR STRING; 243277.VC_1173; -.
DR MEROPS; C26.960; -.
DR DNASU; 2614606; -.
DR EnsemblBacteria; AAF94332; AAF94332; VC_1173.
DR GeneID; 57739848; -.
DR KEGG; vch:VC_1173; -.
DR PATRIC; fig|243277.26.peg.1122; -.
DR eggNOG; COG0512; Bacteria.
DR HOGENOM; CLU_014340_1_0_6; -.
DR OMA; HQVVIYR; -.
DR UniPathway; UPA00035; UER00040.
DR Proteomes; UP000000584; Chromosome 1.
DR GO; GO:0004048; F:anthranilate phosphoribosyltransferase activity; IBA:GO_Central.
DR GO; GO:0004049; F:anthranilate synthase activity; IEA:UniProtKB-EC.
DR GO; GO:0006541; P:glutamine metabolic process; IEA:UniProtKB-KW.
DR GO; GO:0002047; P:phenazine biosynthetic process; IBA:GO_Central.
DR GO; GO:0000162; P:tryptophan biosynthetic process; IBA:GO_Central.
DR CDD; cd01743; GATase1_Anthranilate_Synthase; 1.
DR Gene3D; 3.40.50.880; -; 1.
DR InterPro; IPR029062; Class_I_gatase-like.
DR InterPro; IPR017926; GATASE.
DR InterPro; IPR006221; TrpG/PapA_dom.
DR Pfam; PF00117; GATase; 1.
DR SUPFAM; SSF52317; SSF52317; 1.
DR TIGRFAMs; TIGR00566; trpG_papA; 1.
DR PROSITE; PS51273; GATASE_TYPE_1; 1.
PE 3: Inferred from homology;
KW Amino-acid biosynthesis; Aromatic amino acid biosynthesis;
KW Glutamine amidotransferase; Lyase; Reference proteome;
KW Tryptophan biosynthesis.
FT CHAIN 1..201
FT /note="Anthranilate synthase component 2"
FT /id="PRO_0000056903"
FT DOMAIN 3..196
FT /note="Glutamine amidotransferase type-1"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00605"
FT ACT_SITE 84
FT /note="Nucleophile; for GATase activity"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00605"
FT ACT_SITE 170
FT /note="For GATase activity"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00605"
FT ACT_SITE 172
FT /note="For GATase activity"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00605"
FT BINDING 57..59
FT /ligand="L-glutamine"
FT /ligand_id="ChEBI:CHEBI:58359"
FT /evidence="ECO:0000250|UniProtKB:P00900"
FT BINDING 88
FT /ligand="L-glutamine"
FT /ligand_id="ChEBI:CHEBI:58359"
FT /evidence="ECO:0000250|UniProtKB:P00900"
FT BINDING 134..135
FT /ligand="L-glutamine"
FT /ligand_id="ChEBI:CHEBI:58359"
FT /evidence="ECO:0000250|UniProtKB:P00900"
SQ SEQUENCE 201 AA; 21466 MW; 9499F3FF0B0FBF09 CRC64;
MANILFIDNF DSFTYNLVDQ FRSLGHVVTI YRNNLSADAI EQALLQLDNP VVVLSPGPGA
PSETGCMPEL LQRLKGKVPM IGICLGHQAI VEAYGGVVAG AGEIIHGKVS MMEHQNHAIY
RGLPSPLAIA RYHSLVATQV PSALTVTAEV NGLVMSVVNE ADKVCGFQFH PESIMTTHGA
TLLANAIDWA LSSTPAQTQF A
