Rc. Caneva et al., DIFFERENT BINDINGS OF THE MINOR-GROOVE LIGANDS DAPI AND HOECHST-33258TO MULTIMERS OF THE CURVED (CA(4)T(4)G) AND NONCURVED (CT(4)A(4)G) DNA-SEQUENCES, Biochimica et biophysica acta, N. Gene structure and expression, 1353(2), 1997, pp. 93-97
Equilibrium binding properties of DAPI and Hoechst for prototype curve
d (CA(4)T(4)G)(n) and straight (CT(4)A(4)G)(n) DNAs were derived from
fluorescence intensity. Both decamers display a single strong binding
site for each ligand. Hoechst binds seven times stronger to curved tha
n to straight DNA. An additional cooperative, much weaker binding site
is found for DAPI. (C) 1997 Elsevier Science B.V.