ID   APT_ECOLU               Reviewed;         183 AA.
AC   B7N922;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   24-MAR-2009, sequence version 1.
DT   25-MAY-2022, entry version 71.
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=ECUMN_0508;
OS   Escherichia coli O17:K52:H18 (strain UMN026 / ExPEC).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Escherichia.
OX   NCBI_TaxID=585056;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=UMN026 / ExPEC;
RX   PubMed=19165319; DOI=10.1371/journal.pgen.1000344;
RA   Touchon M., Hoede C., Tenaillon O., Barbe V., Baeriswyl S., Bidet P.,
RA   Bingen E., Bonacorsi S., Bouchier C., Bouvet O., Calteau A., Chiapello H.,
RA   Clermont O., Cruveiller S., Danchin A., Diard M., Dossat C., Karoui M.E.,
RA   Frapy E., Garry L., Ghigo J.M., Gilles A.M., Johnson J., Le Bouguenec C.,
RA   Lescat M., Mangenot S., Martinez-Jehanne V., Matic I., Nassif X., Oztas S.,
RA   Petit M.A., Pichon C., Rouy Z., Ruf C.S., Schneider D., Tourret J.,
RA   Vacherie B., Vallenet D., Medigue C., Rocha E.P.C., Denamur E.;
RT   "Organised genome dynamics in the Escherichia coli species results in
RT   highly diverse adaptive paths.";
RL   PLoS Genet. 5:E1000344-E1000344(2009).
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; CU928163; CAR11723.1; -; Genomic_DNA.
DR   RefSeq; WP_000127356.1; NC_011751.1.
DR   RefSeq; YP_002411271.1; NC_011751.1.
DR   AlphaFoldDB; B7N922; -.
DR   SMR; B7N922; -.
DR   STRING; 585056.ECUMN_0508; -.
DR   EnsemblBacteria; CAR11723; CAR11723; ECUMN_0508.
DR   GeneID; 66671229; -.
DR   KEGG; eum:ECUMN_0508; -.
DR   PATRIC; fig|585056.7.peg.715; -.
DR   HOGENOM; CLU_063339_3_0_6; -.
DR   OMA; KPGIVFR; -.
DR   UniPathway; UPA00588; UER00646.
DR   Proteomes; UP000007097; 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..183
FT                   /note="Adenine phosphoribosyltransferase"
FT                   /id="PRO_1000116174"
SQ   SEQUENCE   183 AA;  19859 MW;  AB45F0B5A219480D CRC64;
     MTATAQQLEY LKNSIKSIQD YPKPGILFRD VTSLLEDPKA YALSIDLLVE RYKNAGITKV
     VGTEARGFLF GAPVALGLGV GFVPVRKPGK LPRETISETY DLEYGTDQLE IHVDAIKPGD
     KVLVVDDLLA TGGTIEATVK LIRRLGGEVA DAAFIINLFD LGGEQRLEKQ GITSYSLVPF
     PGH