Journal
ORGANIC LETTERS
Volume 8, Issue 2, Pages 223-225Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ol052478j
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Many peptides bind to calmodulin (CaM) in a helical conformation. Here we describe a group of synthetic inhibitors of CaM based on an arylamide scaffold that is intended to mimic smMLCK, a CaM-binding helical peptide. Compound 1 showed a K-i value of 7.10 +/- 1.48 nM in a fluorescence polarization assay that monitors the strong association of CaM and its peptide ligand mastoparan X. (H-1,N-15)-HSQC NMR spectroscopy experiments suggested that 1 binds to CaM in an analogous fashion to that of smMLCK.
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