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(Solved): 3. Using Newman projection drawings (see Lehninger, an organic chemistry textbook, or perform an in ...
3. Using Newman projection drawings (see Lehninger, an organic chemistry textbook, or perform an internet search) to depict the dihedral angles \( \varphi \) and \( \psi \), show the conformation of a section of the polypeptide chain in (1) an \( \alpha \)-helix, (2) a \( 3_{10} \) helix and (3) a \( \pi \)-helix. The
Expert Answer
NEWMAN PROJECTION The six carbon-hydrogen bonds are shown as solid lines protruding from the two carbons. Note that we do not draw bonds as solid or dashed wedges in a Newman projection. Looking down the C-C bond in this w