Abstract:S100 proteins are small, typically homodimeric, vertebrate-specific EF-hand proteins that establish Ca2+-dependent protein-protein interactions in the intra- and extracellular environment and are overexpressed in various pathologies. There are about 20 distinct human S100 proteins with numerous potential partner proteins. Here, we used a quantitative holdup assay to measure affinity profiles of most members of the S100 protein family against a library of chemically synthetized foldamers. The profiles allowed u… Show more
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