N-methyl nucleosidase

From Wikipedia, the free encyclopedia

In enzymology, a N-methyl nucleosidase (EC 3.2.2.25) is an enzyme that catalyzes the chemical reaction

7-methylxanthosine + H₂O 7-methylxanthine + D-ribose

Thus, the two substrates of this enzyme are 7-methylxanthosine and H₂O, whereas its two products are 7-methylxanthine and D-ribose.

This enzyme belongs to the family of hydrolases, specifically those glycosylases that hydrolyse N-glycosyl compounds. The systematic name of this enzyme class is 7-methylxanthosine ribohydrolase. Other names in common use include 7-methylxanthosine nucleosidase, N-MeNase, N-methyl nucleoside hydrolase, and methylpurine nucleosidase.

[edit] References

• IUBMB entry for 3.2.2.25
• BRENDA references for 3.2.2.25 (Recommended.)
• PubMed references for 3.2.2.25
• PubMed Central references for 3.2.2.25
• Google Scholar references for 3.2.2.25
• Negishi O, Ozawa T and Imagawa H (1988). "N-Methyl nucleosidase from tea leaves". Agric. Biol. Chem. 52: 169–175. 

[edit] External links

• IUBMB entry for 3.2.2.25

• KEGG entry for 3.2.2.25

• BRENDA entry for 3.2.2.25

• NiceZyme view of 3.2.2.25

• EC2PDB: PDB structures for 3.2.2.25

• PRIAM entry for 3.2.2.25

• PUMA2 entry for 3.2.2.25

• IntEnz: Integrated Enzyme entry for 3.2.2.25

• MetaCyc entry for 3.2.2.25

• Atomic-resolution structures of enzymes belonging to this class