Publications by authors named "Charles Vaughn Sindelar"

Article Synopsis
  • Spirochete bacteria swim using a unique method that involves undulating movements powered by supercoiled 'endoflagella' that wrap around their bodies.
  • Researchers studied the structure of these flagellar filaments using advanced techniques like cryo-electron tomography and X-ray crystallography.
  • Their findings revealed that the filaments are covered by a complex, asymmetric sheath layer, which differs from the simpler structures seen in other bacteria, helping to explain the special supercoiling necessary for the spirochete's motility.
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Kinesin-5 motors organize mitotic spindles by sliding apart microtubules. They are homotetramers with dimeric motor and tail domains at both ends of a bipolar minifilament. Here, we describe a regulatory mechanism involving direct binding between tail and motor domains and its fundamental role in microtubule sliding.

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Previously, we showed that synaptotagmin1 (Syt1) forms Ca-sensitive ring-like oligomers on membranes containing acidic lipids and proposed a potential role in regulating neurotransmitter release (Zanetti et al., 2016). Here, we report that Syt1 assembles into similar ring-like oligomers in solution when triggered by naturally occurring polyphosphates (PIP2 and ATP) and magnesium ions (Mg).

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