Abstract
Calpain, the Ca2+-dependent cysteine endopeptidase, and its endogenous inhibitory protein calpastatin are distributed in animal cells and are involvedin Ca2+-signalling pathway. Using baculovirus expression system, human µ-calpain with active-site-mutation and calpastatin are expressed and purified. The large subunit of the mutant µ-calpain was processed by the wildtype calpain, supporting the intermolecular cleavage mechanism of procalpain during activation. The mutant µ-calpain had no proteolytic activity, but retained the high ordered structure of wild type calpain. The recombinant calpastatin had inhibitory activity for µ- and m-calpain.
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© 1999 Kluwer Academic Publishers
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Hitomi, K., Maki, M. (1999). Expression and Characterization of Human Calpain and Calpastatin Using Baculovirus System. In: Kitagawa, Y., Matsuda, T., Iijima, S. (eds) Animal Cell Technology: Basic & Applied Aspects., vol 1. Springer, Dordrecht. https://doi.org/10.1007/0-306-46865-4_45
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DOI: https://doi.org/10.1007/0-306-46865-4_45
Publisher Name: Springer, Dordrecht
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