Molecular dynamics simulations of pro-apoptotic BH3 peptide helices in aqueous medium: relationship between helix stability and their binding affinities to the anti-apoptotic protein Bcl-X(L).

Abstract excerpt

The B-cell lymphoma 2 (Bcl-2) family of proteins regulates the intrinsic pathway of apoptosis. Interactions between specific anti- and pro-apoptotic Bcl-2 proteins determine the fate of a cell. Anti-apoptotic Bcl-2 proteins have been shown to be over-expressed in certain cancers and they are attractive targets for developing anti-cancer drugs. Peptides from the BH3 region of pro-apoptotic proteins have been shown...

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