ID   TRPE_LEPBI              Reviewed;         462 AA.
AC   P20463;
DT   01-FEB-1991, integrated into UniProtKB/Swiss-Prot.
DT   01-FEB-1991, sequence version 1.
DT   03-AUG-2022, entry version 86.
DE   RecName: Full=Anthranilate synthase component 1;
DE            Short=AS;
DE            Short=ASI;
DE            EC=4.1.3.27;
GN   Name=trpE;
OS   Leptospira biflexa.
OC   Bacteria; Spirochaetes; Leptospirales; Leptospiraceae; Leptospira.
OX   NCBI_TaxID=172;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=Serovar Patoc;
RX   PubMed=2703466; DOI=10.1128/jb.171.4.2083-2089.1989;
RA   Yelton D.B., Peng S.L.;
RT   "Identification and nucleotide sequence of the Leptospira biflexa serovar
RT   patoc trpE and trpG genes.";
RL   J. Bacteriol. 171:2083-2089(1989).
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   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000250|UniProtKB:P00897};
CC       Note=Binds 1 Mg(2+) ion per subunit. {ECO:0000250|UniProtKB:P00897};
CC   -!- ACTIVITY REGULATION: Feedback inhibited by tryptophan. {ECO:0000250}.
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   -!- SIMILARITY: Belongs to the anthranilate synthase component I family.
CC       {ECO:0000305}.
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DR   EMBL; M22468; AAA88216.1; -; Genomic_DNA.
DR   PIR; B32840; B32840.
DR   AlphaFoldDB; P20463; -.
DR   SMR; P20463; -.
DR   UniPathway; UPA00035; UER00040.
DR   GO; GO:0004049; F:anthranilate synthase activity; IEA:UniProtKB-EC.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR   GO; GO:0000162; P:tryptophan biosynthetic process; IEA:UniProtKB-UniPathway.
DR   Gene3D; 3.60.120.10; -; 1.
DR   InterPro; IPR005801; ADC_synthase.
DR   InterPro; IPR019999; Anth_synth_I-like.
DR   InterPro; IPR006805; Anth_synth_I_N.
DR   InterPro; IPR015890; Chorismate_C.
DR   PANTHER; PTHR11236; PTHR11236; 1.
DR   Pfam; PF04715; Anth_synt_I_N; 1.
DR   Pfam; PF00425; Chorismate_bind; 1.
DR   PRINTS; PR00095; ANTSNTHASEI.
DR   SUPFAM; SSF56322; SSF56322; 1.
PE   3: Inferred from homology;
KW   Amino-acid biosynthesis; Aromatic amino acid biosynthesis; Lyase;
KW   Magnesium; Metal-binding; Tryptophan biosynthesis.
FT   CHAIN           1..462
FT                   /note="Anthranilate synthase component 1"
FT                   /id="PRO_0000154097"
FT   BINDING         46
FT                   /ligand="L-tryptophan"
FT                   /ligand_id="ChEBI:CHEBI:57912"
FT                   /evidence="ECO:0000250|UniProtKB:P00897"
FT   BINDING         243..245
FT                   /ligand="L-tryptophan"
FT                   /ligand_id="ChEBI:CHEBI:57912"
FT                   /evidence="ECO:0000250|UniProtKB:P00897"
FT   BINDING         278..279
FT                   /ligand="chorismate"
FT                   /ligand_id="ChEBI:CHEBI:29748"
FT                   /evidence="ECO:0000250|UniProtKB:P00897"
FT   BINDING         305
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000250|UniProtKB:P00897"
FT   BINDING         394
FT                   /ligand="chorismate"
FT                   /ligand_id="ChEBI:CHEBI:29748"
FT                   /evidence="ECO:0000250|UniProtKB:P00897"
FT   BINDING         414
FT                   /ligand="chorismate"
FT                   /ligand_id="ChEBI:CHEBI:29748"
FT                   /evidence="ECO:0000250|UniProtKB:P00897"
FT   BINDING         428..430
FT                   /ligand="chorismate"
FT                   /ligand_id="ChEBI:CHEBI:29748"
FT                   /evidence="ECO:0000250|UniProtKB:P00897"
FT   BINDING         430
FT                   /ligand="chorismate"
FT                   /ligand_id="ChEBI:CHEBI:29748"
FT                   /evidence="ECO:0000250|UniProtKB:P00897"
FT   BINDING         444
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000250|UniProtKB:P00897"
SQ   SEQUENCE   462 AA;  51834 MW;  C5EECE5C779D1F39 CRC64;
     MSQTLPKIKI PKKPNYNSLA LAEGIEFWEL FRVIEAKYEN CFLLESAGDN QYDSRYSVIG
     FQPSHLILGE PGILEIDGKK YPVENPYFAL RELTDYNSLS ISYAGGFVGY LGYQSMQFFE
     PKLQLKPHPD FPAMIFGLYL DGLIYDKFTG ELIYFDNGTN RIHEVNQILE QLKKENSQKP
     KATVSLVKAG LSKEVHKQMV EEALEEVKAG NTFQCQIGFE EIYQVDGNPL AIYETLREIN
     PSPHMYYVNL ELVTILGASP SSLFRLRQGE MESFPLAGTT KRGVDAKEDT LLARKLLTDP
     KEIAEHNMLI DLHRNDVGRV AKFGTVKVRR RFDVKRFSHV QHISSEVVGI LSSKEDMFSG
     LASSFPRGTL SGAPKIESDS KIIERIEKSP RGPYGGAVGS FGLNGDCTFA IPIRSFFVNG
     KKGFVRASGG IVFGFIEPED EYQEIINKMA SVRKALDLHK GP