Biology:rRNA (adenosine-2'-O-)-methyltransferase

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rRNA (adenosine-2'-O-)-methyltransferase
Identifiers
EC number2.1.1.66
CAS number80146-87-8
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum
Gene OntologyAmiGO / QuickGO

In enzymology, a rRNA (adenosine-2'-O-)-methyltransferase (EC 2.1.1.66) is an enzyme that catalyzes the chemical reaction

S-adenosyl-L-methionine + rRNA [math]\displaystyle{ \rightleftharpoons }[/math] S-adenosyl-L-homocysteine + rRNA containing a single residue of 2'-O-methyladenosine

Thus, the two substrates of this enzyme are S-adenosyl methionine and rRNA, whereas its two products are S-adenosylhomocysteine and rRNA containing a single residue of 2'-O-methyladenosine.

This enzyme belongs to the family of transferases, specifically those transferring one-carbon group methyltransferases. The systematic name of this enzyme class is S-adenosyl-L-methionine:rRNA (adenosine-2'-O)-methyltransferase. Other names in common use include ribosomal ribonucleate adenosine 2'-methyltransferase, rRNA adenosine 2'-methylase, RNA-pentose methylase, and thiostrepton-resistance methylase.

References

  • Thompson J; Cundliffe E (1981). "Purification and properties of an RNA methylase produced by Streptomyces azureus and involved in resistance to thiostrepton". J. Gen. Microbiol. 124: 291–297. doi:10.1099/00221287-124-2-291.