ID   APT_BIFLS               Reviewed;         193 AA.
AC   B7GR20; E8MJP8;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   10-FEB-2009, sequence version 1.
DT   03-AUG-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};
GN   OrderedLocusNames=Blon_1160, BLIJ_1187;
OS   Bifidobacterium longum subsp. infantis (strain ATCC 15697 / DSM 20088 / JCM
OS   1222 / NCTC 11817 / S12).
OC   Bacteria; Actinobacteria; Bifidobacteriales; Bifidobacteriaceae;
OC   Bifidobacterium.
OX   NCBI_TaxID=391904;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 15697 / DSM 20088 / JCM 1222 / NCTC 11817 / S12;
RX   PubMed=19033196; DOI=10.1073/pnas.0809584105;
RA   Sela D.A., Chapman J., Adeuya A., Kim J.H., Chen F., Whitehead T.R.,
RA   Lapidus A., Rokhsar D.S., Lebrilla C.B., German J.B., Price N.P.,
RA   Richardson P.M., Mills D.A.;
RT   "The genome sequence of Bifidobacterium longum subsp. infantis reveals
RT   adaptations for milk utilization within the infant microbiome.";
RL   Proc. Natl. Acad. Sci. U.S.A. 105:18964-18969(2008).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 15697 / DSM 20088 / JCM 1222 / NCTC 11817 / S12;
RX   PubMed=21270894; DOI=10.1038/nature09646;
RA   Fukuda S., Toh H., Hase K., Oshima K., Nakanishi Y., Yoshimura K., Tobe T.,
RA   Clarke J.M., Topping D.L., Suzuki T., Taylor T.D., Itoh K., Kikuchi J.,
RA   Morita H., Hattori M., Ohno H.;
RT   "Bifidobacteria can protect from enteropathogenic infection through
RT   production of acetate.";
RL   Nature 469:543-547(2011).
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; CP001095; ACJ52250.1; -; Genomic_DNA.
DR   EMBL; AP010889; BAJ68775.1; -; Genomic_DNA.
DR   RefSeq; WP_012577507.1; NZ_JDTT01000068.1.
DR   AlphaFoldDB; B7GR20; -.
DR   SMR; B7GR20; -.
DR   PRIDE; B7GR20; -.
DR   EnsemblBacteria; ACJ52250; ACJ52250; Blon_1160.
DR   KEGG; bln:Blon_1160; -.
DR   KEGG; blon:BLIJ_1187; -.
DR   PATRIC; fig|391904.8.peg.1184; -.
DR   HOGENOM; CLU_063339_3_2_11; -.
DR   OMA; KPGIVFR; -.
DR   UniPathway; UPA00588; UER00646.
DR   Proteomes; UP000001360; 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..193
FT                   /note="Adenine phosphoribosyltransferase"
FT                   /id="PRO_1000116232"
SQ   SEQUENCE   193 AA;  20297 MW;  1CC1D3C32D248C30 CRC64;
     MAQSDITIDA LDKVGRQDAE YLVSLVRSIP GFPKEGIIFR DFIPVFADPK GLRILLEALE
     AALPVPASEF DSIAGLESRG FLFGPALAAR MGKGFIAVRK AGKLPPETIG ESYDLEYGSA
     RVEIETDAVQ AGERVLIVDD LIATGGTAKA ATDLIDKVGG TVAGYGFVMR LEGLDGIDKL
     GGKPVSSLMA MPA