Abstract
Solution conformation of CD4 fragment 81–92 TYICEVEDQKEE and two of its benzylated analogues was determined by two-dimensional 1H NMR spectroscopy, distance geometry and simulated annealing techniques. The structures of both benzylated derivatives are similar but are distinct from that of wild-type dodecapeptide. It is concluded from structural analysis that bulky side chain(s) of amino acid(s) at an appropriate position can have a marked effect on the conformation and thus the functions of a peptide.
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