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<title>questions 1.38-00 </title>
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<p><font COLOR="#CF411D">(9/27/00)
When looking at secondary structure, is rotation stopped about the N-C
bond where the C is the central carbon of an amino acid or is it about the
N-C bond where C is from the carbonyl and has a double bonded oxygen
<br></font><font color="#000000">  
The latter. There is (relatively) free rotation about the N- central C bond.
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