PURNU_AQUAE
ID PURNU_AQUAE Reviewed; 206 AA.
AC O66554;
DT 01-DEC-2000, integrated into UniProtKB/Swiss-Prot.
DT 01-AUG-1998, sequence version 1.
DT 03-AUG-2022, entry version 101.
DE RecName: Full=Purine nucleoside phosphorylase aq_167;
DE EC=2.4.2.1 {ECO:0000250|UniProtKB:P84138};
DE AltName: Full=Adenosine deaminase aq_167;
DE EC=3.5.4.4 {ECO:0000250|UniProtKB:P84138};
DE AltName: Full=S-methyl-5'-thioadenosine phosphorylase aq_167;
DE EC=2.4.2.28 {ECO:0000250|UniProtKB:P84138};
GN OrderedLocusNames=aq_167;
OS Aquifex aeolicus (strain VF5).
OC Bacteria; Aquificae; Aquificales; Aquificaceae; Aquifex.
OX NCBI_TaxID=224324;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=VF5;
RX PubMed=9537320; DOI=10.1038/32831;
RA Deckert G., Warren P.V., Gaasterland T., Young W.G., Lenox A.L.,
RA Graham D.E., Overbeek R., Snead M.A., Keller M., Aujay M., Huber R.,
RA Feldman R.A., Short J.M., Olsen G.J., Swanson R.V.;
RT "The complete genome of the hyperthermophilic bacterium Aquifex aeolicus.";
RL Nature 392:353-358(1998).
CC -!- FUNCTION: Purine nucleoside enzyme that catalyzes the phosphorolysis of
CC adenosine and inosine nucleosides, yielding D-ribose 1-phosphate and
CC the respective free bases, adenine and hypoxanthine. Also catalyzes the
CC phosphorolysis of S-methyl-5'-thioadenosine into adenine and S-methyl-
CC 5-thio-alpha-D-ribose 1-phosphate. Also has adenosine deaminase
CC activity. {ECO:0000250|UniProtKB:P84138}.
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:0000250|UniProtKB:P84138};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:27643;
CC Evidence={ECO:0000250|UniProtKB:P84138};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=phosphate + S-methyl-5'-thioadenosine = adenine + S-methyl-5-
CC thio-alpha-D-ribose 1-phosphate; Xref=Rhea:RHEA:11852,
CC ChEBI:CHEBI:16708, ChEBI:CHEBI:17509, ChEBI:CHEBI:43474,
CC ChEBI:CHEBI:58533; EC=2.4.2.28;
CC Evidence={ECO:0000250|UniProtKB:P84138};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:11853;
CC Evidence={ECO:0000250|UniProtKB:P84138};
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:0000250|UniProtKB:P84138};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:27647;
CC Evidence={ECO:0000250|UniProtKB:P84138};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=adenosine + H(+) + H2O = inosine + NH4(+);
CC Xref=Rhea:RHEA:24408, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:16335, ChEBI:CHEBI:17596, ChEBI:CHEBI:28938; EC=3.5.4.4;
CC Evidence={ECO:0000250|UniProtKB:P84138};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:24409;
CC Evidence={ECO:0000250|UniProtKB:P84138};
CC -!- COFACTOR:
CC Name=Cu(2+); Xref=ChEBI:CHEBI:29036;
CC Evidence={ECO:0000250|UniProtKB:P33644};
CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC Evidence={ECO:0000250|UniProtKB:P84138};
CC -!- SUBUNIT: Homodimer. {ECO:0000250|UniProtKB:Q1EIR0}.
CC -!- SIMILARITY: Belongs to the purine nucleoside phosphorylase YfiH/LACC1
CC family. {ECO:0000305}.
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DR EMBL; AE000657; AAC06517.1; -; Genomic_DNA.
DR PIR; G70315; G70315.
DR RefSeq; NP_213114.1; NC_000918.1.
DR RefSeq; WP_010880052.1; NC_000918.1.
DR AlphaFoldDB; O66554; -.
DR SMR; O66554; -.
DR STRING; 224324.aq_167; -.
DR EnsemblBacteria; AAC06517; AAC06517; aq_167.
DR KEGG; aae:aq_167; -.
DR PATRIC; fig|224324.8.peg.143; -.
DR eggNOG; COG1496; Bacteria.
DR HOGENOM; CLU_065784_2_0_0; -.
DR InParanoid; O66554; -.
DR OMA; GPHICGR; -.
DR OrthoDB; 1393323at2; -.
DR Proteomes; UP000000798; Chromosome.
DR GO; GO:0004000; F:adenosine deaminase activity; IEA:UniProtKB-EC.
DR GO; GO:0005507; F:copper ion binding; IBA:GO_Central.
DR GO; GO:0016491; F:oxidoreductase activity; IEA:UniProtKB-KW.
DR GO; GO:0017061; F:S-methyl-5-thioadenosine phosphorylase activity; IEA:UniProtKB-EC.
DR CDD; cd16833; YfiH; 1.
DR Gene3D; 3.60.140.10; -; 1.
DR InterPro; IPR003730; Cu_polyphenol_OxRdtase.
DR InterPro; IPR038371; Cu_polyphenol_OxRdtase_sf.
DR InterPro; IPR011324; Cytotoxic_necrot_fac-like_cat.
DR PANTHER; PTHR30616; PTHR30616; 1.
DR Pfam; PF02578; Cu-oxidase_4; 1.
DR SUPFAM; SSF64438; SSF64438; 1.
DR TIGRFAMs; TIGR00726; TIGR00726; 1.
PE 3: Inferred from homology;
KW Copper; Hydrolase; Metal-binding; Oxidoreductase; Reference proteome;
KW Transferase; Zinc.
FT CHAIN 1..206
FT /note="Purine nucleoside phosphorylase aq_167"
FT /id="PRO_0000163156"
FT BINDING 42
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000250|UniProtKB:P84138"
FT BINDING 78
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000250|UniProtKB:P84138"
FT BINDING 93
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000250|UniProtKB:P84138"
SQ SEQUENCE 206 AA; 23637 MW; FD482261EBF960A2 CRC64;
MYKQDFPEGK EALNLEIRLG NKLVRFRKFT GKEKIYLPIQ RHTDKVIKLI DKDSPPLEGD
AVITNLKNVE IGVRTADCVP IILLGKEWVG AVHAGWRGLK KGIIAKTLKA LKEEGEDDIT
ALVFPSAKGC CYEVGKEFKE FFRRNLKERN GKLFFDPQRE AVEQLRENGI KSILVWEKCT
ICSPELPSYR RDKTKERMLT SVVILF
