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TRPE_BACCA
ID   TRPE_BACCA              Reviewed;         508 AA.
AC   P30526;
DT   01-APR-1993, integrated into UniProtKB/Swiss-Prot.
DT   01-APR-1993, sequence version 1.
DT   03-AUG-2022, entry version 94.
DE   RecName: Full=Anthranilate synthase component 1;
DE            Short=AS;
DE            Short=ASI;
DE            EC=4.1.3.27;
GN   Name=trpE;
OS   Bacillus caldotenax.
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Bacillaceae; Geobacillus;
OC   Geobacillus thermoleovorans group.
OX   NCBI_TaxID=1395;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=1840498; DOI=10.1016/0167-4781(91)90201-v;
RA   Shiratsuchi A., Sato S.;
RT   "Nucleotide sequence of trpE, anthranilate synthase I gene, of Bacillus
RT   caldotenax.";
RL   Biochim. Biophys. Acta 1090:348-350(1991).
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; X55703; CAA39230.1; -; Genomic_DNA.
DR   PIR; S19266; S19266.
DR   AlphaFoldDB; P30526; -.
DR   SMR; P30526; -.
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; IPR005256; Anth_synth_I_PabB.
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.
DR   TIGRFAMs; TIGR00564; trpE_most; 1.
PE   3: Inferred from homology;
KW   Amino-acid biosynthesis; Aromatic amino acid biosynthesis; Lyase;
KW   Magnesium; Metal-binding; Tryptophan biosynthesis.
FT   CHAIN           1..508
FT                   /note="Anthranilate synthase component 1"
FT                   /id="PRO_0000154076"
FT   BINDING         49
FT                   /ligand="L-tryptophan"
FT                   /ligand_id="ChEBI:CHEBI:57912"
FT                   /evidence="ECO:0000250|UniProtKB:P00897"
FT   BINDING         282..284
FT                   /ligand="L-tryptophan"
FT                   /ligand_id="ChEBI:CHEBI:57912"
FT                   /evidence="ECO:0000250|UniProtKB:P00897"
FT   BINDING         317..318
FT                   /ligand="chorismate"
FT                   /ligand_id="ChEBI:CHEBI:29748"
FT                   /evidence="ECO:0000250|UniProtKB:P00897"
FT   BINDING         344
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000250|UniProtKB:P00897"
FT   BINDING         432
FT                   /ligand="chorismate"
FT                   /ligand_id="ChEBI:CHEBI:29748"
FT                   /evidence="ECO:0000250|UniProtKB:P00897"
FT   BINDING         452
FT                   /ligand="chorismate"
FT                   /ligand_id="ChEBI:CHEBI:29748"
FT                   /evidence="ECO:0000250|UniProtKB:P00897"
FT   BINDING         466..468
FT                   /ligand="chorismate"
FT                   /ligand_id="ChEBI:CHEBI:29748"
FT                   /evidence="ECO:0000250|UniProtKB:P00897"
FT   BINDING         468
FT                   /ligand="chorismate"
FT                   /ligand_id="ChEBI:CHEBI:29748"
FT                   /evidence="ECO:0000250|UniProtKB:P00897"
FT   BINDING         481
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000250|UniProtKB:P00897"
SQ   SEQUENCE   508 AA;  56493 MW;  3DA113D811A77797 CRC64;
     MSADGLAAFL AEANEFRTIP IVRKFVADVI EPLGVFANLR EEAVFLLESK DDESPWARYS
     FIGVAPFLTL ESETGETFSV KDENGNEQIT APTLKEAFQW VERTLAVKPL AETVPFTGGA
     VGFLGYDFIS AIEKVPRHKN RDVPMKTAYF VFCESLFAFD QKKRELLVIH YIRLSGNETE
     EEKIEAYRAA ERRMADLAAK AARPQAEQPL LPAESESGRT ASFAKAVSNY DKKQFLRDVE
     AVKRYIAAGD VFQAVLSQRF CVPVQAGGFA IYRLLRYINP SPYMFYFQLD GVEIVGSSPE
     KLIQVHRRRV EIDPIAGTRR RGRSPEEDER LADELYHDPK ERAEHYMLVD LARNDIGRVA
     KYGTVEVPVL LQIGKFSHVM HLISKVVGEL DDNVHPIDAL LAAFPAGTVS GAPKVRAMQI
     LQELEPTARG LYAGAIAYIG FDGNIDSCIA IRTAVVKDGY AYVQAGAGIV ADSVPELEWK
     ETRNKASALM NAIEQAERLF AKGERAVC
 
 
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