Journal of biomolecular structure & dynamics
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J. Biomol. Struct. Dyn. · Jan 2014
n-Dodecyl β-D-maltoside specifically competes with general anesthetics for anesthetic binding sites.
We recently demonstrated that the anionic detergent sodium dodecyl sulfate (SDS) specifically interacts with the anesthetic binding site in horse spleen apoferritin, a soluble protein which models anesthetic binding sites in receptors. This raises the possibility of other detergents similarly interacting with and occluding such sites from anesthetics, thereby preventing the proper identification of novel anesthetic binding sites. n-Dodecyl β-D-maltoside (DDM) is a non-ionic detergent commonly used during protein-anesthetic studies because of its mild and non-denaturing properties. In this study, we demonstrate that SDS and DDM occupy anesthetic binding sites in the model proteins human serum albumin (HSA) and horse spleen apoferritin and thereby inhibit the binding of the general anesthetics propofol and isoflurane. ⋯ Computational calculations corroborated the experimental results by demonstrating that the binding sites for DDM and both anesthetics on the model proteins overlapped. Collectively, our results indicate that DDM and SDS specifically interact with anesthetic binding sites and may thus prevent the identification of novel anesthetic sites. Special precaution should be taken when undertaking and interpreting results from protein-anesthetic investigations utilizing detergents like SDS and DDM.
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J. Biomol. Struct. Dyn. · Apr 2002
The Lown Symposium: The Field of DNA Minor Groove Binders Celebrates the Career of Professor J. William Lown.
Abstract A symposium co-organized by Professor William H. Gmeiner of Wake Forest University School of Medicine and Professor Moses Lee of Furman University was held March 30 and 31, 2001 on the campus of Wake Forest University School of Medicine. The Symposium was attended by many distinguished colleagues, friends and co-workers of Professor Lown who share his enthusiasm and passion for targeting DNA for treatment of human disease. The Symposium honored the formal "retirement" of Professor Lown who continues his active pursuit of scholarly activities and advancement of knowledge in a wide variety of intellectual interests.