Switching the N-Capping Region from all-L to all-D Amino Acids in a VEGF Mimetic Helical Peptide.

The analysis of chemical shifts for Hα protons with respect to the random coil reference values (chemical shift deviations, CSDs), calculated according to Wishart [ 33 ] indicates a negative trend and thus the possible presence of an alpha-helix in the fragment encompassing residues from Trp4 to Tyr12 ( Figure 2 ).

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