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  • Title: Coiled coils and SAH domains in cytoskeletal molecular motors.
    Author: Peckham M.
    Journal: Biochem Soc Trans; 2011 Oct; 39(5):1142-8. PubMed ID: 21936779.
    Abstract:
    Cytoskeletal motors include myosins, kinesins and dyneins. Myosins move along tracks of actin filaments, whereas kinesins and dyneins move along microtubules. Many of these motors are involved in trafficking cargo in cells. However, myosins are mostly monomeric, whereas kinesins are mostly dimeric, owing to the presence of a coiled coil. Some myosins (myosins 6, 7 and 10) contain an SAH (single α-helical) domain, which was originally thought to be a coiled coil. These myosins are now known to be monomers, not dimers. The differences between SAH domains and coiled coils are described and the potential roles of SAH domains in molecular motors are discussed.
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