Modification of actins by phallotoxins

Wieland, Theodor

doi:10.1007/BF00446784

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Modification of actins by phallotoxins

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Wieland, Theodor
Max Planck Institute for Medical Research, Max Planck Society;

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Wieland, T. (1977). Modification of actins by phallotoxins. Umschau in Wissenschaft und Technik, 64(6), 303-309. doi:10.1007/BF00446784.

Cite as: https://hdl.handle.net/21.11116/0000-0002-CE54-8

Abstract

Phallotoxins bind to filamentous actin (F-actin) from liver or rabbit muscle with Kdiss∼10−8M. By this combination the structure of F-actin is stabilized to such an extent that it will be resistant to the depolymerizing action of 0.6M KI and of deoxyribonuclease I, to denaturation by heat (70 °° C), and to local ruptures caused by ultrasonication or by cytochalasin B. The structural features of phallotoxins essential for affinity to F-actin are specific.