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PPNP_ECO27
ID   PPNP_ECO27              Reviewed;          94 AA.
AC   B7UJL5;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   10-FEB-2009, sequence version 1.
DT   25-MAY-2022, entry version 57.
DE   RecName: Full=Pyrimidine/purine nucleoside phosphorylase {ECO:0000255|HAMAP-Rule:MF_01537};
DE            EC=2.4.2.1 {ECO:0000255|HAMAP-Rule:MF_01537};
DE            EC=2.4.2.2 {ECO:0000255|HAMAP-Rule:MF_01537};
DE   AltName: Full=Adenosine phosphorylase {ECO:0000255|HAMAP-Rule:MF_01537};
DE   AltName: Full=Cytidine phosphorylase {ECO:0000255|HAMAP-Rule:MF_01537};
DE   AltName: Full=Guanosine phosphorylase {ECO:0000255|HAMAP-Rule:MF_01537};
DE   AltName: Full=Inosine phosphorylase {ECO:0000255|HAMAP-Rule:MF_01537};
DE   AltName: Full=Thymidine phosphorylase {ECO:0000255|HAMAP-Rule:MF_01537};
DE   AltName: Full=Uridine phosphorylase {ECO:0000255|HAMAP-Rule:MF_01537};
DE   AltName: Full=Xanthosine phosphorylase {ECO:0000255|HAMAP-Rule:MF_01537};
GN   Name=ppnP {ECO:0000255|HAMAP-Rule:MF_01537}; OrderedLocusNames=E2348C_0327;
OS   Escherichia coli O127:H6 (strain E2348/69 / EPEC).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Escherichia.
OX   NCBI_TaxID=574521;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=E2348/69 / EPEC;
RX   PubMed=18952797; DOI=10.1128/jb.01238-08;
RA   Iguchi A., Thomson N.R., Ogura Y., Saunders D., Ooka T., Henderson I.R.,
RA   Harris D., Asadulghani M., Kurokawa K., Dean P., Kenny B., Quail M.A.,
RA   Thurston S., Dougan G., Hayashi T., Parkhill J., Frankel G.;
RT   "Complete genome sequence and comparative genome analysis of
RT   enteropathogenic Escherichia coli O127:H6 strain E2348/69.";
RL   J. Bacteriol. 191:347-354(2009).
CC   -!- FUNCTION: Catalyzes the phosphorolysis of diverse nucleosides, yielding
CC       D-ribose 1-phosphate and the respective free bases. Can use uridine,
CC       adenosine, guanosine, cytidine, thymidine, inosine and xanthosine as
CC       substrates. Also catalyzes the reverse reactions. {ECO:0000255|HAMAP-
CC       Rule:MF_01537}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=a purine D-ribonucleoside + phosphate = a purine nucleobase +
CC         alpha-D-ribose 1-phosphate; Xref=Rhea:RHEA:19805, ChEBI:CHEBI:26386,
CC         ChEBI:CHEBI:43474, ChEBI:CHEBI:57720, ChEBI:CHEBI:142355; EC=2.4.2.1;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01537};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=adenosine + phosphate = adenine + alpha-D-ribose 1-phosphate;
CC         Xref=Rhea:RHEA:27642, ChEBI:CHEBI:16335, ChEBI:CHEBI:16708,
CC         ChEBI:CHEBI:43474, ChEBI:CHEBI:57720; EC=2.4.2.1;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01537};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=cytidine + phosphate = alpha-D-ribose 1-phosphate + cytosine;
CC         Xref=Rhea:RHEA:52540, ChEBI:CHEBI:16040, ChEBI:CHEBI:17562,
CC         ChEBI:CHEBI:43474, ChEBI:CHEBI:57720; EC=2.4.2.2;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01537};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=guanosine + phosphate = alpha-D-ribose 1-phosphate + guanine;
CC         Xref=Rhea:RHEA:13233, ChEBI:CHEBI:16235, ChEBI:CHEBI:16750,
CC         ChEBI:CHEBI:43474, ChEBI:CHEBI:57720; EC=2.4.2.1;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01537};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=inosine + phosphate = alpha-D-ribose 1-phosphate +
CC         hypoxanthine; Xref=Rhea:RHEA:27646, ChEBI:CHEBI:17368,
CC         ChEBI:CHEBI:17596, ChEBI:CHEBI:43474, ChEBI:CHEBI:57720; EC=2.4.2.1;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01537};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=phosphate + thymidine = 2-deoxy-alpha-D-ribose 1-phosphate +
CC         thymine; Xref=Rhea:RHEA:16037, ChEBI:CHEBI:17748, ChEBI:CHEBI:17821,
CC         ChEBI:CHEBI:43474, ChEBI:CHEBI:57259; EC=2.4.2.2;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01537};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=phosphate + uridine = alpha-D-ribose 1-phosphate + uracil;
CC         Xref=Rhea:RHEA:24388, ChEBI:CHEBI:16704, ChEBI:CHEBI:17568,
CC         ChEBI:CHEBI:43474, ChEBI:CHEBI:57720; EC=2.4.2.2;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01537};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=phosphate + xanthosine = alpha-D-ribose 1-phosphate +
CC         xanthine; Xref=Rhea:RHEA:27638, ChEBI:CHEBI:17712, ChEBI:CHEBI:18107,
CC         ChEBI:CHEBI:43474, ChEBI:CHEBI:57720; EC=2.4.2.1;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01537};
CC   -!- SIMILARITY: Belongs to the nucleoside phosphorylase PpnP family.
CC       {ECO:0000255|HAMAP-Rule:MF_01537}.
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DR   EMBL; FM180568; CAS07875.1; -; Genomic_DNA.
DR   RefSeq; WP_000941942.1; NC_011601.1.
DR   AlphaFoldDB; B7UJL5; -.
DR   SMR; B7UJL5; -.
DR   EnsemblBacteria; CAS07875; CAS07875; E2348C_0327.
DR   GeneID; 67416534; -.
DR   KEGG; ecg:E2348C_0327; -.
DR   HOGENOM; CLU_157874_0_0_6; -.
DR   OMA; YHYICHF; -.
DR   Proteomes; UP000008205; Chromosome.
DR   GO; GO:0047975; F:guanosine phosphorylase activity; IEA:UniProtKB-EC.
DR   GO; GO:0004731; F:purine-nucleoside phosphorylase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0016154; F:pyrimidine-nucleoside phosphorylase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0009032; F:thymidine phosphorylase activity; IEA:UniProtKB-EC.
DR   GO; GO:0004850; F:uridine phosphorylase activity; IEA:UniProtKB-EC.
DR   Gene3D; 2.60.120.10; -; 1.
DR   HAMAP; MF_01537; Nucleos_phosphorylase_PpnP; 1.
DR   InterPro; IPR009664; Ppnp.
DR   InterPro; IPR014710; RmlC-like_jellyroll.
DR   InterPro; IPR011051; RmlC_Cupin_sf.
DR   PANTHER; PTHR36540; PTHR36540; 1.
DR   Pfam; PF06865; Ppnp; 1.
DR   SUPFAM; SSF51182; SSF51182; 1.
PE   3: Inferred from homology;
KW   Glycosyltransferase; Transferase.
FT   CHAIN           1..94
FT                   /note="Pyrimidine/purine nucleoside phosphorylase"
FT                   /id="PRO_1000185193"
SQ   SEQUENCE   94 AA;  10234 MW;  D7EF5C0AFD86D661 CRC64;
     MLQSNEYFSG KVKSIGFSSS STGRASVGVM VEGEYTFSTA EPEEMTVISG ALNVLLPDAT
     DWQVYEAGSV FNVPGHSEFH LQVAEPTSYL CRYL
 
 
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