Localization of the active site and phosphorylation site of Acanthamoeba myosins IA and IB.
نویسندگان
چکیده
منابع مشابه
Immunochemical analysis of Acanthamoeba myosins IA, IB, and II.
Extracts of Acanthamoeba castellanii contain three myosin isoenzymes which differ in native molecular weight, subunit composition, and enzymatic properties. Peptide mapping of their heavy chains had previously provided strong evidence that the three myosins are products of different genes. These conclusions have now been extended by immunochemical studies. In the radioimmunoprecipitation assay,...
متن کاملExperimental evidence for the contractile activities of Acanthamoeba myosins IA and IB.
The low-shear viscosity of 5-30 microM F-actin was greatly increased by the addition of 0.1-0.5 microM unphosphorylated Acanthamoeba myosins IA and IB. The increase in viscosity was about the same in 2 mM ADP as in the absence of free nucleotide but was much less in 2 mM ATP. The single-headed monomolecular Acanthamoeba myosins were as effective as an equal molar concentration of two-headed mus...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1984
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)89875-1