The following are sequences from three different alpha helices found in human proteins:   hBak(72-87): GQVGRQLAIIGDDINR   hCB1(196-210): VTASFTASVGSLFLT   hCB2(248-262): LVLAVLLICWFPVL   Classify each of these three helices as either a) mostly hydrophobic, b) mostly hydrophilic, or c) amphipathic. Use the helical wheel to explain your answers.   Given the character of these helices, in which part of the protein would you expect them to reside?

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