ID   APT_FRATW               Reviewed;         175 AA.
AC   A4IW38;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   01-MAY-2007, sequence version 1.
DT   03-AUG-2022, entry version 77.
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=FTW_0154;
OS   Francisella tularensis subsp. tularensis (strain WY96-3418).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Thiotrichales;
OC   Francisellaceae; Francisella.
OX   NCBI_TaxID=418136;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=WY96-3418;
RX   PubMed=17895988; DOI=10.1371/journal.pone.0000947;
RA   Beckstrom-Sternberg S.M., Auerbach R.K., Godbole S., Pearson J.V.,
RA   Beckstrom-Sternberg J.S., Deng Z., Munk C., Kubota K., Zhou Y., Bruce D.,
RA   Noronha J., Scheuermann R.H., Wang A., Wei X., Wang J., Hao J.,
RA   Wagner D.M., Brettin T.S., Brown N., Gilna P., Keim P.S.;
RT   "Complete genomic characterization of a pathogenic A.II strain of
RT   Francisella tularensis subspecies tularensis.";
RL   PLoS ONE 2:E947-E947(2007).
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; CP000608; ABO46140.1; -; Genomic_DNA.
DR   RefSeq; WP_003024628.1; NC_009257.1.
DR   AlphaFoldDB; A4IW38; -.
DR   SMR; A4IW38; -.
DR   KEGG; ftw:FTW_0154; -.
DR   HOGENOM; CLU_063339_3_0_6; -.
DR   OMA; KPGIVFR; -.
DR   UniPathway; UPA00588; UER00646.
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..175
FT                   /note="Adenine phosphoribosyltransferase"
FT                   /id="PRO_1000000287"
SQ   SEQUENCE   175 AA;  18825 MW;  3FE62A24588DA900 CRC64;
     MNLDFIKSKI AAVPDFPKPG IMFRDITPLL ADPQGLRKTA EAMAQELKNK GIQPTIVAGT
     ESRGFIFGVA LAEVLGLGFV PVRKPGKLPR ATYSVKYDLE YGSDSLEIHQ DAFKVTDEVL
     VVDDLLATGG TAKATVDLIE KTQAKVAGLI FVMELDGLSG REVLAGYNVS ALIKF