Effect of N3 Modifications on the Affinity of Spin Label ç for Abasic Sites in Duplex DNA
作者:Sandip A. Shelke、Snorri Th. Sigurdsson
DOI:10.1002/cbic.201100728
日期:2012.3.19
Spin‐label ligands: N3 derivatives of the spin label ç were synthesized and used for noncovalent site‐directed spin labeling of duplex DNAs containing abasicsites. EPR spectra showed that derivatives containing basic functional groups had higher binding affinity and solubility. These are promising candidates for distance measurement in nucleic acids by pulsed EPR spectroscopy.