ID TRPG_HALSA Reviewed; 198 AA.
AC Q9HPG6;
DT 21-JUN-2005, integrated into UniProtKB/Swiss-Prot.
DT 01-MAR-2001, sequence version 1.
DT 27-MAR-2024, 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=VNG_1646G;
OS Halobacterium salinarum (strain ATCC 700922 / JCM 11081 / NRC-1)
OS (Halobacterium halobium).
OC Archaea; Euryarchaeota; Stenosarchaea group; Halobacteria; Halobacteriales;
OC Halobacteriaceae; Halobacterium; Halobacterium salinarum NRC-34001.
OX NCBI_TaxID=64091;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 700922 / JCM 11081 / NRC-1;
RX PubMed=11016950; DOI=10.1073/pnas.190337797;
RA Ng W.V., Kennedy S.P., Mahairas G.G., Berquist B., Pan M., Shukla H.D.,
RA Lasky S.R., Baliga N.S., Thorsson V., Sbrogna J., Swartzell S., Weir D.,
RA Hall J., Dahl T.A., Welti R., Goo Y.A., Leithauser B., Keller K., Cruz R.,
RA Danson M.J., Hough D.W., Maddocks D.G., Jablonski P.E., Krebs M.P.,
RA Angevine C.M., Dale H., Isenbarger T.A., Peck R.F., Pohlschroder M.,
RA Spudich J.L., Jung K.-H., Alam M., Freitas T., Hou S., Daniels C.J.,
RA Dennis P.P., Omer A.D., Ebhardt H., Lowe T.M., Liang P., Riley M., Hood L.,
RA DasSarma S.;
RT "Genome sequence of Halobacterium species NRC-1.";
RL Proc. Natl. Acad. Sci. U.S.A. 97:12176-12181(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}.
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DR EMBL; AE004437; AAG19901.1; -; Genomic_DNA.
DR PIR; A84317; A84317.
DR RefSeq; WP_010903199.1; NC_002607.1.
DR AlphaFoldDB; Q9HPG6; -.
DR SMR; Q9HPG6; -.
DR STRING; 64091.VNG_1646G; -.
DR MEROPS; C26.959; -.
DR PaxDb; 64091-VNG_1646G; -.
DR GeneID; 68694315; -.
DR KEGG; hal:VNG_1646G; -.
DR PATRIC; fig|64091.14.peg.1254; -.
DR HOGENOM; CLU_014340_1_2_2; -.
DR InParanoid; Q9HPG6; -.
DR OrthoDB; 3321at2157; -.
DR PhylomeDB; Q9HPG6; -.
DR UniPathway; UPA00035; UER00040.
DR Proteomes; UP000000554; Chromosome.
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: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 NCBIfam; NF041322; Anth_synII_Halo; 1.
DR NCBIfam; TIGR00566; trpG_papA; 1.
DR PANTHER; PTHR43418:SF4; MULTIFUNCTIONAL TRYPTOPHAN BIOSYNTHESIS PROTEIN; 1.
DR PANTHER; PTHR43418; MULTIFUNCTIONAL TRYPTOPHAN BIOSYNTHESIS PROTEIN-RELATED; 1.
DR Pfam; PF00117; GATase; 1.
DR PRINTS; PR00097; ANTSNTHASEII.
DR PRINTS; PR00096; GATASE.
DR SUPFAM; SSF52317; Class I glutamine amidotransferase-like; 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..198
FT /note="Anthranilate synthase component 2"
FT /id="PRO_0000056882"
FT DOMAIN 2..198
FT /note="Glutamine amidotransferase type-1"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00605"
FT ACT_SITE 87
FT /note="Nucleophile; for GATase activity"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00605"
FT ACT_SITE 175
FT /note="For GATase activity"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00605"
FT ACT_SITE 177
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 137..138
FT /ligand="L-glutamine"
FT /ligand_id="ChEBI:CHEBI:58359"
FT /evidence="ECO:0000250|UniProtKB:P00900"
SQ SEQUENCE 198 AA; 20945 MW; E0D6D963C2A12C3A CRC64;
MNVVVVDNYD SFTYNLVEYL SAQPRDDHAP DVTVLKNTAS LAAVRAADPD AVVISPGPGH
PDTPRDVGVT TDVLRAVSPR VPTLGVCLGM EAAVHEYGGT VGRAAEPMHG KTTPVSHDET
GIFADIQQDF PAARYHSLVC TSIPSCFAVT ATTRDGSLPM AIRHRDHPLA CVQFHPESVL
TGVGHDVIGN FLDAAAAH
//
