The Enzyme Database

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Accepted name: 18S rRNA (adenine1779-N6/adenine1780-N6)-dimethyltransferase
Reaction: 4 S-adenosyl-L-methionine + adenine1779/adenine1780 in 18S rRNA = 4 S-adenosyl-L-homocysteine + N6-dimethyladenine1779/N6-dimethyladenine1780 in 18S rRNA
Other name(s): 18S rRNA dimethylase Dim1p; Dim1p; ScDim1; m2(6)A dimethylase; KIDIM1
Systematic name: S-adenosyl-L-methionine:18S rRNA (adenine1779-N6/adenine1780-N6)-dimethyltransferase
Comments: DIM1 is involved in pre-rRNA processing [1].
Links to other databases: BRENDA, EXPASY, Gene, KEGG, MetaCyc, PDB
1.  Lafontaine, D., Vandenhaute, J. and Tollervey, D. The 18S rRNA dimethylase Dim1p is required for pre-ribosomal RNA processing in yeast. Genes Dev. 9 (1995) 2470–2481. [DOI] [PMID: 7590228]
2.  Lafontaine, D.L., Preiss, T. and Tollervey, D. Yeast 18S rRNA dimethylase Dim1p: a quality control mechanism in ribosome synthesis. Mol. Cell Biol. 18 (1998) 2360–2370. [DOI] [PMID: 9528805]
3.  Pulicherla, N., Pogorzala, L.A., Xu, Z., O'Farrell, H.C., Musayev, F.N., Scarsdale, J.N., Sia, E.A., Culver, G.M. and Rife, J.P. Structural and functional divergence within the Dim1/KsgA family of rRNA methyltransferases. J. Mol. Biol. 391 (2009) 884–893. [DOI] [PMID: 19520088]
4.  Lafontaine, D., Delcour, J., Glasser, A.L., Desgres, J. and Vandenhaute, J. The DIM1 gene responsible for the conserved m6(2)Am6(2)A dimethylation in the 3′-terminal loop of 18 S rRNA is essential in yeast. J. Mol. Biol. 241 (1994) 492–497. [DOI] [PMID: 8064863]
5.  O'Farrell, H.C., Pulicherla, N., Desai, P.M. and Rife, J.P. Recognition of a complex substrate by the KsgA/Dim1 family of enzymes has been conserved throughout evolution. RNA 12 (2006) 725–733. [DOI] [PMID: 16540698]
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