ID   APT_POLAQ               Reviewed;         172 AA.
AC   A4SX83;
DT   08-APR-2008, integrated into UniProtKB/Swiss-Prot.
DT   15-MAY-2007, sequence version 1.
DT   03-AUG-2022, entry version 82.
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=Pnuc_0881;
OS   Polynucleobacter asymbioticus (strain DSM 18221 / CIP 109841 /
OS   QLW-P1DMWA-1) (Polynucleobacter necessarius subsp. asymbioticus).
OC   Bacteria; Proteobacteria; Betaproteobacteria; Burkholderiales;
OC   Burkholderiaceae; Polynucleobacter.
OX   NCBI_TaxID=312153;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 18221 / CIP 109841 / QLW-P1DMWA-1;
RX   PubMed=22675600; DOI=10.4056/sigs.2395367;
RA   Meincke L., Copeland A., Lapidus A., Lucas S., Berry K.W., Del Rio T.G.,
RA   Hammon N., Dalin E., Tice H., Pitluck S., Richardson P., Bruce D.,
RA   Goodwin L., Han C., Tapia R., Detter J.C., Schmutz J., Brettin T.,
RA   Larimer F., Land M., Hauser L., Kyrpides N.C., Ivanova N., Goker M.,
RA   Woyke T., Wu Q.L., Pockl M., Hahn M.W., Klenk H.P.;
RT   "Complete genome sequence of Polynucleobacter necessarius subsp.
RT   asymbioticus type strain (QLW-P1DMWA-1(T)).";
RL   Stand. Genomic Sci. 6:74-83(2012).
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; CP000655; ABP34097.1; -; Genomic_DNA.
DR   RefSeq; WP_011902722.1; NC_009379.1.
DR   AlphaFoldDB; A4SX83; -.
DR   SMR; A4SX83; -.
DR   STRING; 312153.Pnuc_0881; -.
DR   EnsemblBacteria; ABP34097; ABP34097; Pnuc_0881.
DR   GeneID; 31481245; -.
DR   KEGG; pnu:Pnuc_0881; -.
DR   eggNOG; COG0503; Bacteria.
DR   HOGENOM; CLU_063339_3_3_4; -.
DR   OMA; KPGIVFR; -.
DR   UniPathway; UPA00588; UER00646.
DR   Proteomes; UP000000231; 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   PROSITE; PS00103; PUR_PYR_PR_TRANSFER; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Glycosyltransferase; Purine salvage; Transferase.
FT   CHAIN           1..172
FT                   /note="Adenine phosphoribosyltransferase"
FT                   /id="PRO_0000329366"
SQ   SEQUENCE   172 AA;  18645 MW;  27A269458651D3A3 CRC64;
     MNLLDYLPGV PDFPKPGILF RDISPLLANP AAFKETIAQL DALAKTFDYT HILGIESRGF
     IFGSALAHHA HKGFAIARKP NKLPLASHRE QYGLEYGSDS LEIQQSTLPT NAKVLLIDDV
     LATGGTLIAA DKLLRSAGFQ VSGAITLLEI AVLNGSEQLE KNHIHHKSVL RS