The neck region of the myosin motor domain acts as a lever arm to generate movement.
نویسندگان
چکیده
منابع مشابه
Essential "ankle" in the myosin lever arm.
C ellular motors are fascinating machines that function by undergoing successive conformational changes that require joints in their structure. Where these are located is particularly critical for molecular motors that produce force with relatively rigid lever arms, such as myosins (1). A long-standing paradox in myosin function may finally be understood from structural insights provided by Coh...
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15 صفحه اولMyosin V movement: lessons from molecular dynamics studies of IQ peptides in the lever arm.
Myosin V moves along actin filaments by an arm-over-arm motion, known as the lever mechanism. Each of its arms is composed of six consecutive IQ peptides that bind light chain proteins, such as calmodulin or calmodulin-like proteins. We have employed a multistage approach in order to investigate the mechanochemical structural basis of the movement of myosin V from the budding yeast Saccharomyce...
متن کاملElastic lever-arm model for myosin V.
We present a mechanochemical model for myosin V, a two-headed processive motor protein. We derive the properties of a dimer from those of an individual head, which we model both with a four-state cycle (detached; attached with ADP.Pi; attached with ADP; and attached without nucleotide) and alternatively with a five-state cycle (where the powerstroke is not tightly coupled to the phosphate relea...
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ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 1996
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.93.9.4459