ID   TRPC_BUCAI              Reviewed;         453 AA.
AC   P57366;
DT   01-DEC-2000, integrated into UniProtKB/Swiss-Prot.
DT   01-DEC-2000, sequence version 1.
DT   27-MAR-2024, entry version 117.
DE   RecName: Full=Tryptophan biosynthesis protein TrpCF;
DE   Includes:
DE     RecName: Full=Indole-3-glycerol phosphate synthase;
DE              Short=IGPS;
DE              EC=4.1.1.48;
DE   Includes:
DE     RecName: Full=N-(5'-phospho-ribosyl)anthranilate isomerase;
DE              Short=PRAI;
DE              EC=5.3.1.24;
GN   Name=trpC; Synonyms=trpC/F; OrderedLocusNames=BU279;
OS   Buchnera aphidicola subsp. Acyrthosiphon pisum (strain APS) (Acyrthosiphon
OS   pisum symbiotic bacterium).
OC   Bacteria; Pseudomonadota; Gammaproteobacteria; Enterobacterales;
OC   Erwiniaceae; Buchnera.
OX   NCBI_TaxID=107806;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=APS;
RX   PubMed=10993077; DOI=10.1038/35024074;
RA   Shigenobu S., Watanabe H., Hattori M., Sakaki Y., Ishikawa H.;
RT   "Genome sequence of the endocellular bacterial symbiont of aphids Buchnera
RT   sp. APS.";
RL   Nature 407:81-86(2000).
CC   -!- FUNCTION: Bifunctional enzyme that catalyzes two sequential steps of
CC       tryptophan biosynthetic pathway. The first reaction is catalyzed by the
CC       isomerase, coded by the TrpF domain; the second reaction is catalyzed
CC       by the synthase, coded by the TrpC domain (By similarity).
CC       {ECO:0000250}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=N-(5-phospho-beta-D-ribosyl)anthranilate = 1-(2-
CC         carboxyphenylamino)-1-deoxy-D-ribulose 5-phosphate;
CC         Xref=Rhea:RHEA:21540, ChEBI:CHEBI:18277, ChEBI:CHEBI:58613;
CC         EC=5.3.1.24;
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=1-(2-carboxyphenylamino)-1-deoxy-D-ribulose 5-phosphate + H(+)
CC         = (1S,2R)-1-C-(indol-3-yl)glycerol 3-phosphate + CO2 + H2O;
CC         Xref=Rhea:RHEA:23476, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:16526, ChEBI:CHEBI:58613, ChEBI:CHEBI:58866; EC=4.1.1.48;
CC   -!- PATHWAY: Amino-acid biosynthesis; L-tryptophan biosynthesis; L-
CC       tryptophan from chorismate: step 3/5.
CC   -!- PATHWAY: Amino-acid biosynthesis; L-tryptophan biosynthesis; L-
CC       tryptophan from chorismate: step 4/5.
CC   -!- SUBUNIT: Monomer. {ECO:0000250}.
CC   -!- SIMILARITY: In the N-terminal section; belongs to the TrpC family.
CC       {ECO:0000305}.
CC   -!- SIMILARITY: In the C-terminal section; belongs to the TrpF family.
CC       {ECO:0000305}.
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DR   EMBL; BA000003; BAB12989.1; -; Genomic_DNA.
DR   RefSeq; NP_240103.1; NC_002528.1.
DR   RefSeq; WP_010896042.1; NC_002528.1.
DR   AlphaFoldDB; P57366; -.
DR   SMR; P57366; -.
DR   STRING; 563178.BUAP5A_274; -.
DR   EnsemblBacteria; BAB12989; BAB12989; BAB12989.
DR   KEGG; buc:BU279; -.
DR   PATRIC; fig|107806.10.peg.289; -.
DR   eggNOG; COG0134; Bacteria.
DR   eggNOG; COG0135; Bacteria.
DR   HOGENOM; CLU_007713_3_1_6; -.
DR   UniPathway; UPA00035; UER00042.
DR   UniPathway; UPA00035; UER00043.
DR   Proteomes; UP000001806; Chromosome.
DR   GO; GO:0004425; F:indole-3-glycerol-phosphate synthase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0004640; F:phosphoribosylanthranilate isomerase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0000162; P:tryptophan biosynthetic process; IEA:UniProtKB-UniRule.
DR   CDD; cd00331; IGPS; 1.
DR   CDD; cd00405; PRAI; 1.
DR   Gene3D; 3.20.20.70; Aldolase class I; 2.
DR   HAMAP; MF_00134_B; IGPS_B; 1.
DR   HAMAP; MF_00135; PRAI; 1.
DR   InterPro; IPR013785; Aldolase_TIM.
DR   InterPro; IPR045186; Indole-3-glycerol_P_synth.
DR   InterPro; IPR013798; Indole-3-glycerol_P_synth_dom.
DR   InterPro; IPR001468; Indole-3-GlycerolPSynthase_CS.
DR   InterPro; IPR001240; PRAI_dom.
DR   InterPro; IPR011060; RibuloseP-bd_barrel.
DR   PANTHER; PTHR22854:SF2; INDOLE-3-GLYCEROL-PHOSPHATE SYNTHASE; 1.
DR   PANTHER; PTHR22854; TRYPTOPHAN BIOSYNTHESIS PROTEIN; 1.
DR   Pfam; PF00218; IGPS; 1.
DR   Pfam; PF00697; PRAI; 1.
DR   SUPFAM; SSF51366; Ribulose-phoshate binding barrel; 2.
DR   PROSITE; PS00614; IGPS; 1.
PE   3: Inferred from homology;
KW   Amino-acid biosynthesis; Aromatic amino acid biosynthesis; Decarboxylase;
KW   Isomerase; Lyase; Multifunctional enzyme; Reference proteome;
KW   Tryptophan biosynthesis.
FT   CHAIN           1..453
FT                   /note="Tryptophan biosynthesis protein TrpCF"
FT                   /id="PRO_0000154271"
FT   REGION          1..257
FT                   /note="Indole-3-glycerol phosphate synthase"
FT   REGION          258..453
FT                   /note="N-(5'-phosphoribosyl)anthranilate isomerase"
SQ   SEQUENCE   453 AA;  52065 MW;  25F506D52614D9E5 CRC64;
     MQDTTLKKII QDKSEWIRLR KEKQPLIDFK DKINKKTRDF YHSLKEKKPC FILEYKKKSP
     SLGIIRNNFN LIEISNVYKK YASSVSVLTD EKYFHGNLNF INIVRECVSQ PVLCKDFFID
     PYQVYLSRYY NADAILLMLS VLNDIQYKEL SIIAKKLNMG ILTEVNNIEE LKRALKLNAN
     IIGINNRNLH DLSIDLNRTR TLSSLIKKDT IIISESGIKK YREIKELSKF VNGFLIGSHL
     MSQTNLETAV RSIIFGDNKV CGLTRSIDIE VSEKYGAIYG GLIFVKNSPR YITKKTAKNI
     SINRKLKLIG IFQNENINII VDIAEELSLY GVQLHGQENK QYIDKLRNIL PKKINIWKAF
     SIQSELPDRN WDNVNMYIFD SDSGGSNTSF NWSILNHHIL DNVILAGGIN LKNCITASKL
     KCSGLDLNSG VEISPGIKDY KKIKSIFQKL RYG
//