ID   HIS1_BUCAT              Reviewed;         299 AA.
AC   B8D705;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   03-MAR-2009, sequence version 1.
DT   03-AUG-2022, entry version 67.
DE   RecName: Full=ATP phosphoribosyltransferase {ECO:0000255|HAMAP-Rule:MF_00079};
DE            Short=ATP-PRT {ECO:0000255|HAMAP-Rule:MF_00079};
DE            Short=ATP-PRTase {ECO:0000255|HAMAP-Rule:MF_00079};
DE            EC=2.4.2.17 {ECO:0000255|HAMAP-Rule:MF_00079};
GN   Name=hisG {ECO:0000255|HAMAP-Rule:MF_00079};
GN   OrderedLocusNames=BUAPTUC7_098;
OS   Buchnera aphidicola subsp. Acyrthosiphon pisum (strain Tuc7).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Erwiniaceae; Buchnera.
OX   NCBI_TaxID=561501;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Tuc7;
RX   PubMed=19150844; DOI=10.1126/science.1167140;
RA   Moran N.A., McLaughlin H.J., Sorek R.;
RT   "The dynamics and time scale of ongoing genomic erosion in symbiotic
RT   bacteria.";
RL   Science 323:379-382(2009).
CC   -!- FUNCTION: Catalyzes the condensation of ATP and 5-phosphoribose 1-
CC       diphosphate to form N'-(5'-phosphoribosyl)-ATP (PR-ATP). Has a crucial
CC       role in the pathway because the rate of histidine biosynthesis seems to
CC       be controlled primarily by regulation of HisG enzymatic activity.
CC       {ECO:0000255|HAMAP-Rule:MF_00079}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=1-(5-phospho-beta-D-ribosyl)-ATP + diphosphate = 5-phospho-
CC         alpha-D-ribose 1-diphosphate + ATP; Xref=Rhea:RHEA:18473,
CC         ChEBI:CHEBI:30616, ChEBI:CHEBI:33019, ChEBI:CHEBI:58017,
CC         ChEBI:CHEBI:73183; EC=2.4.2.17; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_00079};
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00079};
CC   -!- ACTIVITY REGULATION: Feedback inhibited by histidine.
CC       {ECO:0000255|HAMAP-Rule:MF_00079}.
CC   -!- PATHWAY: Amino-acid biosynthesis; L-histidine biosynthesis; L-histidine
CC       from 5-phospho-alpha-D-ribose 1-diphosphate: step 1/9.
CC       {ECO:0000255|HAMAP-Rule:MF_00079}.
CC   -!- SUBUNIT: Equilibrium between an active dimeric form, an inactive
CC       hexameric form and higher aggregates. Interconversion between the
CC       various forms is largely reversible and is influenced by the natural
CC       substrates and inhibitors of the enzyme. {ECO:0000255|HAMAP-
CC       Rule:MF_00079}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00079}.
CC   -!- SIMILARITY: Belongs to the ATP phosphoribosyltransferase family. Long
CC       subfamily. {ECO:0000255|HAMAP-Rule:MF_00079}.
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DR   EMBL; CP001158; ACL29920.1; -; Genomic_DNA.
DR   RefSeq; WP_009874054.1; NC_011834.1.
DR   AlphaFoldDB; B8D705; -.
DR   SMR; B8D705; -.
DR   KEGG; bau:BUAPTUC7_098; -.
DR   HOGENOM; CLU_038115_1_0_6; -.
DR   OMA; YVMMDYD; -.
DR   UniPathway; UPA00031; UER00006.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR   GO; GO:0003879; F:ATP phosphoribosyltransferase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0000105; P:histidine biosynthetic process; IEA:UniProtKB-UniRule.
DR   Gene3D; 3.30.70.120; -; 1.
DR   HAMAP; MF_00079; HisG_Long; 1.
DR   InterPro; IPR013820; ATP_PRibTrfase_cat.
DR   InterPro; IPR018198; ATP_PRibTrfase_CS.
DR   InterPro; IPR001348; ATP_PRibTrfase_HisG.
DR   InterPro; IPR020621; ATP_PRibTrfase_HisG_long.
DR   InterPro; IPR013115; HisG_C.
DR   InterPro; IPR011322; N-reg_PII-like_a/b.
DR   InterPro; IPR015867; N-reg_PII/ATP_PRibTrfase_C.
DR   PANTHER; PTHR21403; PTHR21403; 1.
DR   Pfam; PF01634; HisG; 1.
DR   Pfam; PF08029; HisG_C; 1.
DR   SUPFAM; SSF54913; SSF54913; 1.
DR   TIGRFAMs; TIGR00070; hisG; 1.
DR   TIGRFAMs; TIGR03455; HisG_C-term; 1.
DR   PROSITE; PS01316; ATP_P_PHORIBOSYLTR; 1.
PE   3: Inferred from homology;
KW   Amino-acid biosynthesis; ATP-binding; Cytoplasm; Glycosyltransferase;
KW   Histidine biosynthesis; Magnesium; Metal-binding; Nucleotide-binding;
KW   Transferase.
FT   CHAIN           1..299
FT                   /note="ATP phosphoribosyltransferase"
FT                   /id="PRO_1000118246"
SQ   SEQUENCE   299 AA;  33416 MW;  A5B979F23D9851B3 CRC64;
     MFENNRVRIA MQKTGRLSKD SIRLLTSCGV KINLKQQKLI AFAENMPIDV MLVRDDDIPG
     LVMDGVVDLG IVGENVLEEE LLKRKSQKSE CSYITLRRLD FGVCRLSLAL PVNTIYTNIT
     CLKNIRIATS YPHLLKKYLD EKNISFKSCM LNGSVEVAPR AGLADAICDL VSTGATLEAN
     GLREVQVVYH SHACLICKTG NINSIKKEFI NKLMTRIKGV IKARESKYIM LHAPIKQLEA
     VISLLHGAER PTILKLAGDD NRVAMHMVSS ETLFWETMEK LKLLGASSIL VLPIEKMME