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Solvent-accessible surface showing hydrophobic groove for Bcl-2(1) (A) and Bcl-2(2) (B). Leucine, isoleucine, valine, tyrosine, phenylalanine, and tryptophan residues are colored yellow, aspartate and glutamate are colored red, and lysine, arginine, and histidine are colored blue. All other residue types are colored gray.
