TRPE_BUCAP
ID TRPE_BUCAP Reviewed; 515 AA.
AC P42387;
DT 01-NOV-1995, integrated into UniProtKB/Swiss-Prot.
DT 01-NOV-1995, sequence version 1.
DT 03-AUG-2022, entry version 110.
DE RecName: Full=Anthranilate synthase component 1;
DE Short=AS;
DE Short=ASI;
DE EC=4.1.3.27;
GN Name=trpE; OrderedLocusNames=BUsg_PT1;
OS Buchnera aphidicola subsp. Schizaphis graminum (strain Sg).
OG Plasmid pBSc.
OC Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC Erwiniaceae; Buchnera.
OX NCBI_TaxID=198804;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Sg;
RX PubMed=8170994; DOI=10.1073/pnas.91.9.3819;
RA Lai C.-Y., Baumann L., Baumann P.;
RT "Amplification of trpEG: adaptation of Buchnera aphidicola to an
RT endosymbiotic association with aphids.";
RL Proc. Natl. Acad. Sci. U.S.A. 91:3819-3823(1994).
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; Z21938; CAA79931.1; -; Genomic_DNA.
DR EMBL; Z21938; CAA79933.1; -; Genomic_DNA.
DR PIR; I40052; I40052.
DR AlphaFoldDB; P42387; -.
DR SMR; P42387; -.
DR PRIDE; P42387; -.
DR OMA; AYRSFMN; -.
DR UniPathway; UPA00035; UER00040.
DR Proteomes; UP000000416; Plasmid pBsc.
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; IPR005257; Anth_synth_I_TrpE.
DR InterPro; IPR015890; Chorismate_C.
DR PANTHER; PTHR11236; PTHR11236; 1.
DR PANTHER; PTHR11236:SF22; PTHR11236:SF22; 1.
DR Pfam; PF04715; Anth_synt_I_N; 1.
DR Pfam; PF00425; Chorismate_bind; 1.
DR PIRSF; PIRSF001373; TrpE; 1.
DR PRINTS; PR00095; ANTSNTHASEI.
DR SUPFAM; SSF56322; SSF56322; 1.
DR TIGRFAMs; TIGR00565; trpE_proteo; 1.
PE 3: Inferred from homology;
KW Amino-acid biosynthesis; Aromatic amino acid biosynthesis; Lyase;
KW Magnesium; Metal-binding; Plasmid; Tryptophan biosynthesis.
FT CHAIN 1..515
FT /note="Anthranilate synthase component 1"
FT /id="PRO_0000154081"
FT BINDING 40
FT /ligand="L-tryptophan"
FT /ligand_id="ChEBI:CHEBI:57912"
FT /evidence="ECO:0000250|UniProtKB:P00897"
FT BINDING 291..293
FT /ligand="L-tryptophan"
FT /ligand_id="ChEBI:CHEBI:57912"
FT /evidence="ECO:0000250|UniProtKB:P00897"
FT BINDING 328..329
FT /ligand="chorismate"
FT /ligand_id="ChEBI:CHEBI:29748"
FT /evidence="ECO:0000250|UniProtKB:P00897"
FT BINDING 361
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000250|UniProtKB:P00897"
FT BINDING 449
FT /ligand="chorismate"
FT /ligand_id="ChEBI:CHEBI:29748"
FT /evidence="ECO:0000250|UniProtKB:P00897"
FT BINDING 469
FT /ligand="chorismate"
FT /ligand_id="ChEBI:CHEBI:29748"
FT /evidence="ECO:0000250|UniProtKB:P00897"
FT BINDING 483..485
FT /ligand="chorismate"
FT /ligand_id="ChEBI:CHEBI:29748"
FT /evidence="ECO:0000250|UniProtKB:P00897"
FT BINDING 485
FT /ligand="chorismate"
FT /ligand_id="ChEBI:CHEBI:29748"
FT /evidence="ECO:0000250|UniProtKB:P00897"
FT BINDING 498
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000250|UniProtKB:P00897"
SQ SEQUENCE 515 AA; 58687 MW; EDD52BF2E9DDD5C7 CRC64;
MSKNPYEIEI IQKTAPYHPD PTMIFNHLCA SRPGTLLLET AEVNKKRDLE SIMIIDSAMR
ISSEDNSVKL TPLSINGTDI LSTLKKTIPK KIEIYEKNNS TILVFPKIKK NIDEDKKLFS
LSVFDAFRLM IRIFENREKK SKAMFFGGLF SYDLISVFES LPKLKGNQKC SNFCFYLAET
LLVLDHQKKT CLIQNSLFSK NLKERKRIKK RSVEIERKLN EKLKLIPKTK IKDINLTSNM
NNFEYGTIIK KLQKLIQKGE IFQVVPSRKF YLPCPNPLSA YQKLKKSNPS PYMFFMQDQD
FTLFGASPES SLKYDEKTRK IELYPIAGTR PRGKTEDGNL DLDLDSRIEL EMRTNHKELA
EHLMLVDLAR NDLARICKPG SRYVSDLVRV DRYSHVMHLV SRVIGELREG LDALHAYASC
MNMGTLTGAP KVRAMQLIAE HEGEKRGSYG GAIGYFTDLG NLDTCITIRS AYVEKQVATI
QAGAGIVYNS IPENEVNESL NKAQAVINAI KNAHY
