Time-Resolved Fluorescence of 2-Aminopurine as a Probe of Base Flipping in M.HhaI-DNA Complexes.
Neely, R.K., Daujotyte, D., Grazulis, S., Magennis, S.W., Dryden, D.T.F., Klimasauskas, S., Jones, A.C.(2005) Nucleic Acids Res 33: 6953
- PubMed: 16340006 
- DOI: https://doi.org/10.1093/nar/gki995
- Primary Citation of Related Structures:  
2C7O, 2C7P, 2C7Q, 2C7R - PubMed Abstract: 
DNA base flipping is an important mechanism in molecular enzymology, but its study is limited by the lack of an accessible and reliable diagnostic technique. A series of crystalline complexes of a DNA methyltransferase, M.HhaI, and its cognate DNA, in which a fluorescent nucleobase analogue, 2-aminopurine (AP), occupies defined positions with respect the target flipped base, have been prepared and their structures determined at higher than 2 A resolution ...