ID   DEOD_MYCPI              Reviewed;          42 AA.
AC   P47724;
DT   01-FEB-1996, integrated into UniProtKB/Swiss-Prot.
DT   01-FEB-1996, sequence version 1.
DT   03-AUG-2022, entry version 56.
DE   RecName: Full=Purine nucleoside phosphorylase DeoD-type {ECO:0000255|HAMAP-Rule:MF_01627};
DE            Short=PNP {ECO:0000255|HAMAP-Rule:MF_01627};
DE            EC=2.4.2.1 {ECO:0000255|HAMAP-Rule:MF_01627};
DE   Flags: Fragment;
GN   Name=deoD {ECO:0000255|HAMAP-Rule:MF_01627};
OS   Mycoplasma pirum (Mycoplasmoides pirum).
OC   Bacteria; Tenericutes; Mollicutes; Mycoplasmataceae; Mycoplasma.
OX   NCBI_TaxID=2122;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=BER;
RX   PubMed=8349569; DOI=10.1128/jb.175.16.5281-5285.1993;
RA   Tham T.N., Ferris S., Kovacic R., Montagnier L., Blanchard A.;
RT   "Identification of Mycoplasma pirum genes involved in the salvage pathways
RT   for nucleosides.";
RL   J. Bacteriol. 175:5281-5285(1993).
CC   -!- FUNCTION: Catalyzes the reversible phosphorolytic breakdown of the N-
CC       glycosidic bond in the beta-(deoxy)ribonucleoside molecules, with the
CC       formation of the corresponding free purine bases and pentose-1-
CC       phosphate. {ECO:0000255|HAMAP-Rule:MF_01627}.
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_01627};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=a purine 2'-deoxy-D-ribonucleoside + phosphate = 2-deoxy-
CC         alpha-D-ribose 1-phosphate + a purine nucleobase;
CC         Xref=Rhea:RHEA:36431, ChEBI:CHEBI:26386, ChEBI:CHEBI:43474,
CC         ChEBI:CHEBI:57259, ChEBI:CHEBI:142361; EC=2.4.2.1;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01627};
CC   -!- SUBUNIT: Homohexamer; trimer of homodimers. {ECO:0000255|HAMAP-
CC       Rule:MF_01627}.
CC   -!- SIMILARITY: Belongs to the PNP/UDP phosphorylase family.
CC       {ECO:0000255|HAMAP-Rule:MF_01627, ECO:0000305}.
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DR   EMBL; L13289; AAA25430.1; -; Genomic_DNA.
DR   PIR; A53312; A53312.
DR   AlphaFoldDB; P47724; -.
DR   SMR; P47724; -.
DR   GO; GO:0004731; F:purine-nucleoside phosphorylase activity; IEA:UniProtKB-EC.
DR   GO; GO:0009116; P:nucleoside metabolic process; IEA:InterPro.
DR   InterPro; IPR035994; Nucleoside_phosphorylase_sf.
DR   SUPFAM; SSF53167; SSF53167; 1.
PE   3: Inferred from homology;
KW   Glycosyltransferase; Transferase.
FT   CHAIN           <1..42
FT                   /note="Purine nucleoside phosphorylase DeoD-type"
FT                   /id="PRO_0000063147"
FT   ACT_SITE        9
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01627"
FT   BINDING         8..9
FT                   /ligand="a purine D-ribonucleoside"
FT                   /ligand_id="ChEBI:CHEBI:142355"
FT                   /evidence="ECO:0000250|UniProtKB:P50389"
FT   SITE            22
FT                   /note="Important for catalytic activity"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01627"
FT   NON_TER         1
SQ   SEQUENCE   42 AA;  4658 MW;  406D7A0EDD73372F CRC64;
     ALTLLTVSDS LITKESLSSL ERQTTFNTMV KLALEMACEL QK