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Article
Cytoskeletal regulation of a transcription factor by DNA mimicry via coiled-coil interactions
A long-established strategy for transcription regulation is the tethering of transcription factors to cellular membranes. By contrast, the principal effectors of Hedgehog signalling, the GLI transcription fact...
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Article
Reconstitution of the augmin complex provides insights into its architecture and function
Proper microtubule nucleation during cell division requires augmin, a microtubule-associated hetero-octameric protein complex. In current models, augmin recruits γ-tubulin, through the carboxyl terminus of its...
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Article
Cadherin 23 and protocadherin 15 interact to form tip-link filaments in sensory hair cells
Hair cells of the inner ear are so-called because of the hair-like projections, or stereocilia, that protrude from their apical surface. Sound-induced stereocilial motion is thought to be coupled to mechanoele...
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Article
Conformational changes of the multifunction p97 AAA ATPase during its ATPase cycle
p97 (also called VCP), a member of the AAA ATPase family, is involved in several cellular processes, including membrane fusion and extraction of proteins from the endoplasmic reticulum for cytoplasmic degradat...
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Article
A structural change in the kinesin motor protein that drives motility
Kinesin motors power many motile processes by converting ATP energy into unidirectional motion along microtubules. The force-generating and enzymatic properties of conventional kinesin have been extensively st...
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Article
A 32° tail swing in brush border myosin I on ADP release
BRUSH border myosin I (BBMI) is a single-headed, unconventional myosin from intestinal microvilli, composed of a heavy chain of relative molecular mass 119,000 (Mr 119K) and three calmodulin light chains1–3. Alth...
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Article
A 35-Å movement of smooth muscle myosin on ADP release
MYOSIN II crossbridges interact with F-actin producing power-strokes of around 100 Å (refs 1, 2), during which the products of ATP hydrolysis are released3–5. This has been postulated to involve an articulation ...