ID   APT_CAMFF               Reviewed;         182 AA.
AC   A0RQ44;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   09-JAN-2007, sequence version 1.
DT   03-AUG-2022, entry version 86.
DE   RecName: Full=Adenine phosphoribosyltransferase {ECO:0000255|HAMAP-Rule:MF_00004};
DE            Short=APRT {ECO:0000255|HAMAP-Rule:MF_00004};
DE            EC=2.4.2.7 {ECO:0000255|HAMAP-Rule:MF_00004};
GN   Name=apt {ECO:0000255|HAMAP-Rule:MF_00004}; OrderedLocusNames=CFF8240_1169;
OS   Campylobacter fetus subsp. fetus (strain 82-40).
OC   Bacteria; Proteobacteria; Epsilonproteobacteria; Campylobacterales;
OC   Campylobacteraceae; Campylobacter.
OX   NCBI_TaxID=360106;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=82-40;
RA   Fouts D.E., Nelson K.E.;
RT   "Sequence of Campylobacter fetus subsp. fetus 82-40.";
RL   Submitted (NOV-2006) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Catalyzes a salvage reaction resulting in the formation of
CC       AMP, that is energically less costly than de novo synthesis.
CC       {ECO:0000255|HAMAP-Rule:MF_00004}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=AMP + diphosphate = 5-phospho-alpha-D-ribose 1-diphosphate +
CC         adenine; Xref=Rhea:RHEA:16609, ChEBI:CHEBI:16708, ChEBI:CHEBI:33019,
CC         ChEBI:CHEBI:58017, ChEBI:CHEBI:456215; EC=2.4.2.7;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00004};
CC   -!- PATHWAY: Purine metabolism; AMP biosynthesis via salvage pathway; AMP
CC       from adenine: step 1/1. {ECO:0000255|HAMAP-Rule:MF_00004}.
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_00004}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00004}.
CC   -!- SIMILARITY: Belongs to the purine/pyrimidine phosphoribosyltransferase
CC       family. {ECO:0000255|HAMAP-Rule:MF_00004}.
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DR   EMBL; CP000487; ABK82642.1; -; Genomic_DNA.
DR   RefSeq; WP_002849820.1; NC_008599.1.
DR   AlphaFoldDB; A0RQ44; -.
DR   SMR; A0RQ44; -.
DR   STRING; 360106.CFF8240_1169; -.
DR   EnsemblBacteria; ABK82642; ABK82642; CFF8240_1169.
DR   GeneID; 61064994; -.
DR   KEGG; cff:CFF8240_1169; -.
DR   eggNOG; COG0503; Bacteria.
DR   HOGENOM; CLU_063339_3_0_7; -.
DR   OMA; KPGIVFR; -.
DR   OrthoDB; 1532478at2; -.
DR   UniPathway; UPA00588; UER00646.
DR   Proteomes; UP000000760; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0003999; F:adenine phosphoribosyltransferase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0006168; P:adenine salvage; IEA:UniProtKB-UniRule.
DR   GO; GO:0044209; P:AMP salvage; IEA:UniProtKB-UniPathway.
DR   GO; GO:0006166; P:purine ribonucleoside salvage; IEA:UniProtKB-KW.
DR   CDD; cd06223; PRTases_typeI; 1.
DR   Gene3D; 3.40.50.2020; -; 1.
DR   HAMAP; MF_00004; Aden_phosphoribosyltr; 1.
DR   InterPro; IPR005764; Ade_phspho_trans.
DR   InterPro; IPR000836; PRibTrfase_dom.
DR   InterPro; IPR029057; PRTase-like.
DR   Pfam; PF00156; Pribosyltran; 1.
DR   SUPFAM; SSF53271; SSF53271; 1.
DR   TIGRFAMs; TIGR01090; apt; 1.
DR   PROSITE; PS00103; PUR_PYR_PR_TRANSFER; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Glycosyltransferase; Purine salvage; Transferase.
FT   CHAIN           1..182
FT                   /note="Adenine phosphoribosyltransferase"
FT                   /id="PRO_1000000268"
SQ   SEQUENCE   182 AA;  20317 MW;  79F0B011F54008EF CRC64;
     MKELSKFDKE YLLGTIRDIK NFPKPGIIFK DITTLLGNAK AFKFLLDHLE DRYKDENLDF
     IVGIESRGFI LGAALSARLN LGFVPVRKPN KLPYITISQK YSLEYGFDEV EMHIDAFDSI
     KNPKVLLVDD LIATGGTAKA SSQLLKKLGV NLVEACFLVD LVELGGSKEL KSECPVYSVL
     EV