ID   APT_STRP4               Reviewed;         170 AA.
AC   B5E6M0;
DT   24-MAR-2009, integrated into UniProtKB/Swiss-Prot.
DT   14-OCT-2008, sequence version 1.
DT   23-FEB-2022, entry version 68.
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=SPG_1503;
OS   Streptococcus pneumoniae serotype 19F (strain G54).
OC   Bacteria; Firmicutes; Bacilli; Lactobacillales; Streptococcaceae;
OC   Streptococcus.
OX   NCBI_TaxID=512566;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=G54;
RX   PubMed=11442348; DOI=10.1089/10766290152044995;
RA   Dopazo J., Mendoza A., Herrero J., Caldara F., Humbert Y., Friedli L.,
RA   Guerrier M., Grand-Schenk E., Gandin C., de Francesco M., Polissi A.,
RA   Buell G., Feger G., Garcia E., Peitsch M., Garcia-Bustos J.F.;
RT   "Annotated draft genomic sequence from a Streptococcus pneumoniae type 19F
RT   clinical isolate.";
RL   Microb. Drug Resist. 7:99-125(2001).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=G54;
RA   Mulas L., Trappetti C., Hakenbeck R., Iannelli F., Pozzi G., Davidsen T.M.,
RA   Tettelin H., Oggioni M.;
RT   "Pneumococcal beta glucoside metabolism investigated by whole genome
RT   comparison.";
RL   Submitted (MAR-2008) 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; CP001015; ACF56699.1; -; Genomic_DNA.
DR   RefSeq; WP_001049326.1; NC_011072.1.
DR   KEGG; spx:SPG_1503; -.
DR   HOGENOM; CLU_063339_3_0_9; -.
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..170
FT                   /note="Adenine phosphoribosyltransferase"
FT                   /id="PRO_1000089009"
SQ   SEQUENCE   170 AA;  18727 MW;  C38355A8EE63BD84 CRC64;
     MNLKDYIATI ENYPKEGITF RDISPLMADG NAYSYAVREI VQYATDKKVD MIVGPEARGF
     IVGCPVAFEL GXGFAPVRKP GKLPREVISA DYEKEYGVDT LTMHADAIKP GQRVLIVDDL
     LATGGTVKAT IEMIEKLGGV MAGCAFLVEL DELNGREKIG DYDYKVLMHY