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. Author manuscript; available in PMC: 2015 Oct 7.
Published in final edited form as: J Med Chem. 2015 Aug 11;58(16):6359–6367. doi: 10.1021/acs.jmedchem.5b00102

Table 4.

Binding and cAMP Activities of Selected Peptides at Human Melanoma Cells (A375)

Peptide Sequence IC50 (nM) Binding Efficiency EC50 (nM) Act%
15 Ac-Nle-c[Asp-(NMe)His-DNal(2′)-(NMe)Arg-Trp-Lys]-NH2 14.8 ± 2 100 ± 10 22 ± 2.5 NA
28 Ac-Nle-c[Asp-(NMe)His-DNal(2′)-(NMe)Arg-(NMe)Trp-(NMe)Lys]-NH2 8.7 ± 1 100 ± 10 20 ±2 NA
MT-II Ac-Nle-c[Asp-His-d-Phe-Arg-Trp-Lys]-NH2 6.7 ± 2.9 100 ± 10 110 ± 0.6 100
1 Ac-Nle-c[Asp-His-DNal(2′)-Arg-Trp-Lys]-NH2 100 ± 96 80 ± 34 3.3 ± 2.6 NA