Use of a fluorescent polarization based high throughput assay to identify new Calmodulin ligands

Dagher R, Pigault C, Bonnet D, Boeglin D, Pourbaix C, Kilhoffer MC, Villa P, Wermuth CG, Hibert M, Haiech J
Biochimica et Biophysica Acta - Molecular Cell Research - vol. 1763 1250-1255 (2006)

Biochimica et Biophysica Acta - Molecular Cell Research

In order to develop a fluorescence polarization (FP) assay for calcium binding proteins, a fluorescent peptides based library of 1328 compounds has been synthesized. The use of this library has been validated by setting up a FP-high-throughput screening (FP-HTS) assay for calmodulin using the synthetic gene product (synCaM). With this assay, a set of 880 FDA approved compounds was screened. Besides the promazine class, we discovered two new classes of compounds that interact with calmodulin in a calcium dependent manner. One class has compounds with anti-histaminic/spasmolytic activities, and the other one are detergents with antibacterial activities. ?? 2006 Elsevier B.V. All rights reserved.