ID   TRPE_HAEIN              Reviewed;         518 AA.
AC   P43761;
DT   01-NOV-1995, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1995, sequence version 1.
DT   03-AUG-2022, entry version 133.
DE   RecName: Full=Anthranilate synthase component 1;
DE            Short=AS;
DE            Short=ASI;
DE            EC=4.1.3.27;
GN   Name=trpE; OrderedLocusNames=HI_1387;
OS   Haemophilus influenzae (strain ATCC 51907 / DSM 11121 / KW20 / Rd).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Pasteurellales;
OC   Pasteurellaceae; Haemophilus.
OX   NCBI_TaxID=71421;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 51907 / DSM 11121 / KW20 / Rd;
RX   PubMed=7542800; DOI=10.1126/science.7542800;
RA   Fleischmann R.D., Adams M.D., White O., Clayton R.A., Kirkness E.F.,
RA   Kerlavage A.R., Bult C.J., Tomb J.-F., Dougherty B.A., Merrick J.M.,
RA   McKenney K., Sutton G.G., FitzHugh W., Fields C.A., Gocayne J.D.,
RA   Scott J.D., Shirley R., Liu L.-I., Glodek A., Kelley J.M., Weidman J.F.,
RA   Phillips C.A., Spriggs T., Hedblom E., Cotton M.D., Utterback T.R.,
RA   Hanna M.C., Nguyen D.T., Saudek D.M., Brandon R.C., Fine L.D.,
RA   Fritchman J.L., Fuhrmann J.L., Geoghagen N.S.M., Gnehm C.L., McDonald L.A.,
RA   Small K.V., Fraser C.M., Smith H.O., Venter J.C.;
RT   "Whole-genome random sequencing and assembly of Haemophilus influenzae
RT   Rd.";
RL   Science 269:496-512(1995).
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; L42023; AAC23033.1; -; Genomic_DNA.
DR   PIR; C64121; C64121.
DR   RefSeq; NP_439539.1; NC_000907.1.
DR   RefSeq; WP_005693976.1; NC_000907.1.
DR   AlphaFoldDB; P43761; -.
DR   SMR; P43761; -.
DR   STRING; 71421.HI_1387; -.
DR   EnsemblBacteria; AAC23033; AAC23033; HI_1387.
DR   KEGG; hin:HI_1387; -.
DR   PATRIC; fig|71421.8.peg.1444; -.
DR   eggNOG; COG0147; Bacteria.
DR   HOGENOM; CLU_006493_9_4_6; -.
DR   OMA; AYRSFMN; -.
DR   PhylomeDB; P43761; -.
DR   BioCyc; HINF71421:G1GJ1-1413-MON; -.
DR   UniPathway; UPA00035; UER00040.
DR   Proteomes; UP000000579; Chromosome.
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; IBA:GO_Central.
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; Reference proteome; Tryptophan biosynthesis.
FT   CHAIN           1..518
FT                   /note="Anthranilate synthase component 1"
FT                   /id="PRO_0000154093"
FT   BINDING         41
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   518 AA;  57522 MW;  D597A7D56E921409 CRC64;
     MNIQTQAFIA VTAQPIPYYA DTTAIFNTLC QSNSNSLLLD SAEIGSKNSL QSLILVNAAV
     KITCLGHNVT FKALNNNGKQ VLKEIHPKLT ALGKVSAVNF EDEFSVQFLP LDNQLDEDSK
     LQSATIFDGL RVISSLYQHS QTPIFLGGLF AYDLVANFIP MDGITLKNDG INCPDYSFYL
     AEHLITIDHQ NQQATLKSFC FAQEEQVNIA KTSLSIAQKL KNIDHVLSIK AASDEVKTNF
     DDPEFTGIVK ALKHHINIGD VFQIVPSRRF SLACPNTLAS YAQLKQNNPS PYMFYMNDED
     FILFGASPES ALKYAPENRQ LEIYPIAGSR PRGFDAHGNI DPELDARLEL ELRLDHKEQA
     EHLMLVDLAR NDIARVCQSG TRKVAELMQV DRYSHIMHLV SRVVGKLRPE LDALHAYQAC
     MNMGTLTGAP KIKAMQLIYQ FEQQKRHSYG GAVGYLTSDG HFDTCIVIRS AFVQNGMAHV
     QAGCGEVLDS DPQMEADETR HKAAAVLKAI RQVNTQAK