DNA-Interactive Drugs: Hoescht 33258


Name Hoescht 33258[2(4-hydroxyphenyl)-5[5-(4-methylpiperazine-1-yl)- 
benzimidazol-2-yl]benzimidazole] (bisbenzimide)
MW 623.97 (Aldrich)
CAS#  23491-45-4
Category Benzimide
Binding Mode Binding Mode:  Minor groove, covers 4-5 base pairs in xray crystal [Goodsell, 1986; Pjura, 1987] and 4 base pairs in NMR solution structure [Searle, 1990].
Site Specificity 5'-WWWW-3' [Goodsell, 1986; Searle, 1990]
Effect on DNA Minimal distortion of helix, bends helix 6-8o [Pjura, 1987].
Source Obtained from Aldrich Chemical Co (Milwaukee, WI).  Originally synthesized by Hoescht, not a natural product.
Preparation and Use Prepared in ddH2O
 
DNA drugs
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Please direct all comments to: Jack Welch, M.D., Ph.D.
Last Modified August 1, 1998