ID   DEOD_KLEPN              Reviewed;         239 AA.
AC   Q59482;
DT   01-NOV-1997, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1997, sequence version 1.
DT   13-SEP-2023, entry version 81.
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};
GN   Name=deoD {ECO:0000255|HAMAP-Rule:MF_01627}; Synonyms=pnp;
OS   Klebsiella pneumoniae.
OC   Bacteria; Pseudomonadota; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Klebsiella/Raoultella group; Klebsiella.
OX   NCBI_TaxID=573;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=LF1202;
RX   PubMed=8534998; DOI=10.1271/bbb.59.1987;
RA   Takehara M., Ling F., Izawa S., Inoue Y., Kimura A.;
RT   "Molecular cloning and nucleotide sequence of purine nucleoside
RT   phosphorylase and uridine phosphorylase genes from Klebsiella sp.";
RL   Biosci. Biotechnol. Biochem. 59:1987-1990(1995).
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}.
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DR   EMBL; X87881; CAA61136.1; -; Genomic_DNA.
DR   AlphaFoldDB; Q59482; -.
DR   SMR; Q59482; -.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProt.
DR   GO; GO:0004731; F:purine-nucleoside phosphorylase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0009164; P:nucleoside catabolic process; IEA:UniProt.
DR   GO; GO:0042278; P:purine nucleoside metabolic process; IEA:UniProtKB-UniRule.
DR   CDD; cd09006; PNP_EcPNPI-like; 1.
DR   Gene3D; 3.40.50.1580; Nucleoside phosphorylase domain; 1.
DR   HAMAP; MF_01627; Pur_nucleosid_phosp; 1.
DR   InterPro; IPR004402; DeoD-type.
DR   InterPro; IPR018016; Nucleoside_phosphorylase_CS.
DR   InterPro; IPR000845; Nucleoside_phosphorylase_d.
DR   InterPro; IPR035994; Nucleoside_phosphorylase_sf.
DR   NCBIfam; TIGR00107; deoD; 1.
DR   PANTHER; PTHR43691:SF2; PURINE NUCLEOSIDE PHOSPHORYLASE DEOD-TYPE; 1.
DR   PANTHER; PTHR43691; URIDINE PHOSPHORYLASE; 1.
DR   Pfam; PF01048; PNP_UDP_1; 1.
DR   SUPFAM; SSF53167; Purine and uridine phosphorylases; 1.
DR   PROSITE; PS01232; PNP_UDP_1; 1.
PE   3: Inferred from homology;
KW   Glycosyltransferase; Transferase.
FT   CHAIN           1..239
FT                   /note="Purine nucleoside phosphorylase DeoD-type"
FT                   /id="PRO_0000063139"
FT   ACT_SITE        205
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01627"
FT   BINDING         5
FT                   /ligand="a purine D-ribonucleoside"
FT                   /ligand_id="ChEBI:CHEBI:142355"
FT                   /ligand_note="ligand shared between dimeric partners"
FT                   /evidence="ECO:0000250|UniProtKB:P50389"
FT   BINDING         21
FT                   /ligand="phosphate"
FT                   /ligand_id="ChEBI:CHEBI:43474"
FT                   /ligand_note="ligand shared between dimeric partners"
FT                   /note="in other chain"
FT                   /evidence="ECO:0000250|UniProtKB:P50389"
FT   BINDING         25
FT                   /ligand="phosphate"
FT                   /ligand_id="ChEBI:CHEBI:43474"
FT                   /ligand_note="ligand shared between dimeric partners"
FT                   /note="in other chain"
FT                   /evidence="ECO:0000250|UniProtKB:P50389"
FT   BINDING         44
FT                   /ligand="phosphate"
FT                   /ligand_id="ChEBI:CHEBI:43474"
FT                   /ligand_note="ligand shared between dimeric partners"
FT                   /evidence="ECO:0000250|UniProtKB:P50389"
FT   BINDING         89..92
FT                   /ligand="phosphate"
FT                   /ligand_id="ChEBI:CHEBI:43474"
FT                   /ligand_note="ligand shared between dimeric partners"
FT                   /note="in other chain"
FT                   /evidence="ECO:0000250|UniProtKB:P50389"
FT   BINDING         180..182
FT                   /ligand="a purine D-ribonucleoside"
FT                   /ligand_id="ChEBI:CHEBI:142355"
FT                   /ligand_note="ligand shared between dimeric partners"
FT                   /note="in other chain"
FT                   /evidence="ECO:0000250|UniProtKB:P50389"
FT   BINDING         204..205
FT                   /ligand="a purine D-ribonucleoside"
FT                   /ligand_id="ChEBI:CHEBI:142355"
FT                   /ligand_note="ligand shared between dimeric partners"
FT                   /note="in other chain"
FT                   /evidence="ECO:0000250|UniProtKB:P50389"
FT   SITE            218
FT                   /note="Important for catalytic activity"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01627"
SQ   SEQUENCE   239 AA;  26196 MW;  BC7514EDF5BB27F5 CRC64;
     MATPHINAEM GDFADVVLMP GDPLRANSIA ETFLEDAREV NNVRGMLGFT GTYKGRRKIS
     VMGHGMGIPS CSIYTKELIT DFGVKKIIRV GSCGAVREDV KLREVVIGHG ACTDSKVNRL
     RFKDHDFPAI ADFGMVRNAV DAKALGVEAR RSNIFSADLF YTPDPSMFDV MEKYGILGVE
     MEAAGIYGVA AEFGAKALTI CTVSDHIRTH EQTIAAERQT TFNDMIKIAL ESVLLRDKE
//