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A new class EC 7, Translocases, has been added to the EC list. It will be part of ENZYME from release 2018_10. Read more about EC 7 here.

ENZYME entry: EC 3.2.2.1

Accepted Name
Purine nucleosidase.
Alternative Name(s)
IAG-NH.
IAG-nucleoside hydrolase.
Inosine-adenosine-guanosine preferring nucleoside hydrolase.
N-D-ribosylpurine ribohydrolase.
N-ribosyl purine ribohydrolase.
Nucleosidase.
Nucleosidase g.
Nucleoside hydrolase.
Purine beta-ribosidase.
Purine nucleoside hydrolase.
Purine ribonucleosidase.
Purine-specific nucleoside N-ribohydrolase.
Ribonucleoside hydrolase.
Reaction catalysed
A purine nucleoside + H(2)O <=> D-ribose + a purine base
Comment(s)
  • The enzyme from the bacterium Ochrobactrum anthropi specifically catalyzes the irreversible N-riboside hydrolysis of purine nucleosides.
  • Pyrimidine nucleosides, purine and pyrimidine nucleotides, NAD(+), NADP(+) and nicotinaminde mononucleotide are not substrates.
Cross-references
PROSITEPDOC00960
BRENDA3.2.2.1
EC2PDB3.2.2.1
ExplorEnz3.2.2.1
PRIAM enzyme-specific profiles3.2.2.1
KEGG Ligand Database for Enzyme Nomenclature3.2.2.1
IUBMB Enzyme Nomenclature3.2.2.1
IntEnz3.2.2.1
MEDLINEFind literature relating to 3.2.2.1
MetaCyc3.2.2.1
UniProtKB/Swiss-Prot
Q7KWM9, RIH_DICDI

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All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 3.2.2.-
All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 3.2.-.-
All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 3.-.-.-