Tropomyosin Cable Formation and Its Influence on the Structural Dynamics of Tropomyosin
نویسندگان
چکیده
منابع مشابه
The binding dynamics of tropomyosin on actin.
We discuss a theoretical model for the cooperative binding dynamics of tropomyosin to actin filaments. Tropomyosin binds to actin by occupying seven consecutive monomers. The model includes a strong attraction between attached tropomyosin molecules. We start with an empty lattice and show that the binding goes through several stages. The first stage represents fast initial binding and leaves ma...
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A new study has found that retrograde flow of budding yeast actin cables is facilitated by myosin II but is inhibited by a specific tropomyosin isoform (Tpm2p). Budding yeast therefore contains a minimal component system for elucidating the mechanistic details of retrograde actin flow.
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M proteins of the group A streptococcus, despite their well-recognized immunological variations, have the unique capacity of maintaining a common antiphagocytic function for the organism. Antibodies to M proteins, however, are capable of neutralizing the antiphagocytic activity of these molecules (1-3). Although, immunological cross-reactions between different M types have been observed (4-6), ...
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The tropomyosin family of proteins form end-to-end polymers along the actin filament. Tumour cells rely on specific tropomyosin-containing actin filament populations for growth and survival. To dissect out the role of tropomyosin in actin filament regulation we use the small molecule TR100 directed against the C terminus of the tropomyosin isoform Tpm3.1. TR100 nullifies the effect of Tpm3.1 on...
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ژورنال
عنوان ژورنال: Biophysical Journal
سال: 2019
ISSN: 0006-3495
DOI: 10.1016/j.bpj.2018.11.199