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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Villin sequence and peptide map identify six homologous domains.

Site-specific proteases and antisera to the amino terminus of villin have been used to show that villin is organized into seven protease-resistant domains. Six are contained in the amino-terminal Mr 87,000 villin core, a Ca2+-regulated actin-severing fragment, whereas the carboxyl-terminal domain includes the villin "headpiece," a fragment involved in bundling of actin filaments. Ca2+ inhibits proteolytic cleavage between domains in the amino-terminal half of villin. The protein sequence of villin deduced from a single cDNA clone contains a conserved sequence that is repeated six times and is found in each domain of the villin core. The conserved repeats are found in other actin-severing proteins but not in the villin headpiece. Our results suggest that actin-severing proteins are organized around a common Mr 14,000-17,000 domain.[1]


  1. Villin sequence and peptide map identify six homologous domains. Bazari, W.L., Matsudaira, P., Wallek, M., Smeal, T., Jakes, R., Ahmed, Y. Proc. Natl. Acad. Sci. U.S.A. (1988) [Pubmed]
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