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FEBS Lett. 1995 Oct 30;374(2):284-6.

Coactosin interferes with the capping of actin filaments.

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1
Max-Planck-Institut für Biochemie, Martinsried, Germany.

Abstract

Coactosin, a 16 kDa protein associated with the actin cytoskeleton from Dictyostelium discoideum, was purified by an improved method, in which other components of the cytoskeleton were removed. The highly purified coactosin had no effect on the time course of actin polymerization, but when added to actin in presence of capping proteins, coactosin counteracted the capping activity of these proteins. The capping proteins cap32/34 and severin domain 1 retarded actin polymerization, on addition of coactosin to samples containing one of these capping proteins the time course of actin polymerization became close to controls without capping proteins.

PMID:
7589554
DOI:
10.1016/0014-5793(95)01130-7
[Indexed for MEDLINE]
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