Home  |  Contact
Due to work on this service, it may not be fully operational on Wednesday March 20 between 1.30 pm and 2.30 pm CEST. Apologies for the inconvenience.

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

Accepted Name
N-methyl nucleosidase.
Alternative Name(s)
7-methylxanthosine nucleosidase.
Methylpurine nucleosidase.
N-methyl nucleoside hydrolase.
Reaction catalysed
7-methylxanthosine + H(2)O <=> 7-methylxanthine + D-ribose
  • Preferentially hydrolyzes 3- and 7-methylpurine nucleosides, such as 3-methylxanthosine, 3-methyladenosine and 7-methylguanosine.
  • Hydrolysis of 7-methylxanthosine to form 7-methylxanthine is the second step in the caffeine biosynthesis pathway.
PRIAM enzyme-specific profiles3.2.2.25
KEGG Ligand Database for Enzyme Nomenclature3.2.2.25
IUBMB Enzyme Nomenclature3.2.2.25
MEDLINEFind literature relating to

View entry in original ENZYME format
View entry in raw text format (no links)
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.-.-.-