Structural basis for methyl transfer by a radical SAM enzyme.
Boal, A.K., Grove, T.L., McLaughlin, M.I., Yennawar, N.H., Booker, S.J., Rosenzweig, A.C.(2011) Science 332: 1089-1092
- PubMed: 21527678 
- DOI: 10.1126/science.1205358
- Primary Citation of Related Structures:  
3RFA, 3RF9 - PubMed Abstract: 
The radical S-adenosyl-L-methionine (SAM) enzymes RlmN and Cfr methylate 23S ribosomal RNA, modifying the C2 or C8 position of adenosine 2503. The methyl groups are installed by a two-step sequence involving initial methylation of a conserved Cys res ...