ID A0A0G0GI56_9BACT Unreviewed; 272 AA.
AC A0A0G0GI56;
DT 22-JUL-2015, integrated into UniProtKB/TrEMBL.
DT 22-JUL-2015, sequence version 1.
DT 24-JAN-2024, entry version 33.
DE RecName: Full=Purine nucleoside phosphorylase {ECO:0000256|HAMAP-Rule:MF_01963};
DE Short=PNP {ECO:0000256|HAMAP-Rule:MF_01963};
DE EC=2.4.2.1 {ECO:0000256|HAMAP-Rule:MF_01963};
GN ORFNames=US39_C0004G0030 {ECO:0000313|EMBL:KKQ25785.1};
OS Microgenomates group bacterium GW2011_GWC1_37_12b.
OC Bacteria.
OX NCBI_TaxID=1618510 {ECO:0000313|EMBL:KKQ25785.1, ECO:0000313|Proteomes:UP000034251};
RN [1] {ECO:0000313|EMBL:KKQ25785.1, ECO:0000313|Proteomes:UP000034251}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RA Brown C.T., Hug L.A., Thomas B.C., Sharon I., Castelle C.J., Singh A.,
RA Wilkins M.J., Williams K.H., Banfield J.F.;
RT "rRNA introns, odd ribosomes, and small enigmatic genomes across a large
RT radiation of phyla.";
RL Nature 0:0-0(2015).
CC -!- FUNCTION: Purine nucleoside phosphorylase involved in purine salvage.
CC {ECO:0000256|HAMAP-Rule:MF_01963}.
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:0000256|HAMAP-Rule:MF_01963};
CC -!- PATHWAY: Purine metabolism; purine nucleoside salvage.
CC {ECO:0000256|HAMAP-Rule:MF_01963}.
CC -!- SUBUNIT: Homohexamer. Dimer of a homotrimer. {ECO:0000256|HAMAP-
CC Rule:MF_01963}.
CC -!- MISCELLANEOUS: Although this enzyme belongs to the family of MTA
CC phosphorylases based on sequence homology, it lacks several conserved
CC amino acids in the substrate binding pocket that confer specificity
CC towards MTA. {ECO:0000256|HAMAP-Rule:MF_01963}.
CC -!- SIMILARITY: Belongs to the PNP/MTAP phosphorylase family. MTAP
CC subfamily. {ECO:0000256|HAMAP-Rule:MF_01963}.
CC -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|HAMAP-Rule:MF_01963}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:KKQ25785.1}.
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DR EMBL; LBSU01000004; KKQ25785.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A0G0GI56; -.
DR STRING; 1618510.US39_C0004G0030; -.
DR PATRIC; fig|1618510.3.peg.396; -.
DR UniPathway; UPA00606; -.
DR Proteomes; UP000034251; Unassembled WGS sequence.
DR GO; GO:0017061; F:S-methyl-5-thioadenosine phosphorylase activity; IEA:InterPro.
DR GO; GO:0006166; P:purine ribonucleoside salvage; IEA:UniProtKB-UniRule.
DR CDD; cd09010; MTAP_SsMTAPII_like_MTIP; 1.
DR Gene3D; 3.40.50.1580; Nucleoside phosphorylase domain; 1.
DR HAMAP; MF_01963; MTAP; 1.
DR InterPro; IPR010044; MTAP.
DR InterPro; IPR000845; Nucleoside_phosphorylase_d.
DR InterPro; IPR035994; Nucleoside_phosphorylase_sf.
DR InterPro; IPR018099; Purine_phosphorylase-2_CS.
DR PANTHER; PTHR42679; S-METHYL-5'-THIOADENOSINE PHOSPHORYLASE; 1.
DR PANTHER; PTHR42679:SF2; S-METHYL-5'-THIOADENOSINE PHOSPHORYLASE; 1.
DR Pfam; PF01048; PNP_UDP_1; 1.
DR SUPFAM; SSF53167; Purine and uridine phosphorylases; 1.
DR PROSITE; PS01240; PNP_MTAP_2; 1.
PE 3: Inferred from homology;
KW Glycosyltransferase {ECO:0000256|HAMAP-Rule:MF_01963};
KW Purine salvage {ECO:0000256|HAMAP-Rule:MF_01963};
KW Transferase {ECO:0000256|HAMAP-Rule:MF_01963}.
FT DOMAIN 5..247
FT /note="Nucleoside phosphorylase"
FT /evidence="ECO:0000259|Pfam:PF01048"
FT BINDING 12
FT /ligand="phosphate"
FT /ligand_id="ChEBI:CHEBI:43474"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01963"
FT BINDING 52..53
FT /ligand="phosphate"
FT /ligand_id="ChEBI:CHEBI:43474"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01963"
FT BINDING 85..86
FT /ligand="phosphate"
FT /ligand_id="ChEBI:CHEBI:43474"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01963"
FT BINDING 189
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01963"
FT BINDING 190
FT /ligand="phosphate"
FT /ligand_id="ChEBI:CHEBI:43474"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01963"
FT BINDING 213..215
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01963"
FT SITE 229
FT /note="Important for substrate specificity"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01963"
SQ SEQUENCE 272 AA; 30178 MW; 395A412DA6F617B8 CRC64;
MVKADIGVIG GSGFYELINK AEKVSIDTPF GPTSDKISLG LIANKKVAFI PRHGSKHSYP
PHMVPYAANI YAFKKLGVTR IIAPTASGSL NKVYKPGDFV LCDQFVNFTS GRIDSFFQGN
NTPRELKYKV VHISGSPYCE MLRNIAFKQA QKNNIKCKSA TVVVINGPRF ASKAESVWYQ
SNGWGVINMT QYPEAILAHE ASICYLNISL ITDYDNGIID KLKIKPVNVT KVLKVFKKNN
VILKEFVSTL IKNIPQNEDC LCRHSLDNSV VN
//
