1. Structural studies

2. References

In enzymology, a rRNA (guanine-N2-)-methyltransferase ({{EC number|2.1.1.52}}) is an enzyme that catalyzes the chemical reaction

S-adenosyl-L-methionine + rRNA S-adenosyl-L-homocysteine + rRNA containing N₂-methylguanine

Thus, the two substrates of this enzyme are S-adenosyl methionine and rRNA, whereas its two products are S-adenosylhomocysteine and rRNA containing N2-methylguanine.

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 (guanine-N2-)-methyltransferase. Other names in common use include ribosomal ribonucleate guanine-2-methyltransferase, and S-adenosyl-L-methionine:rRNA (guanine-2-N-)-methyltransferase.

Structural studies

As of late 2007, only one structure has been solved for this class of enzymes, with the PDB accession code {{PDB link|2PJD}}.

References

• {{cite journal | vauthors = Isaksson LA | title = Partial purification of ribosomal RNA(m1G)- and rRNA(m2G)-methylases from Escherichia coli and demonstration of some proteins affecting their apparent activity | journal = Biochimica et Biophysica Acta | volume = 312 | issue = 1 | pages = 122–33 | date = June 1973 | pmid = 4580201 | doi = 10.1016/0005-2787(73)90057-9 }}

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