10/2017 - Microtubule dynamics: 50 years after the discovery of tubulin and still going strong

The Minisymposium “Microtubule Dynamics” featured speakers ranging from a founding member of the microtubule field to graduate students embarking on their scientific journeys. The session spanned a broad range of topics, from fundamental questions about the structure and dynamics of microtubules, to the behavior of molecular motors in reconstituted systems, to the therapeutic potential of […]

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08/2017 - RNA polymerase I, bending the rules?

Transcription initiation is one of the key regulatory steps in expressing the genetic information encoded in the DNA. Mechanisms of RNA Pol II transcription have been extensively studied, whereas the structural basis of RNA Pol I and III transcription is still poorly defined. Three recent studies discussed here give a first glimpse into the molecular mechanisms underlying the process of RNA Pol I transcriptional initiation and […]

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07/2017 - Switching dynein motors on and off

Cytoplasmic dyneins transport cellular components from the periphery toward the center of the cell. By moving cargoes along microtubules, dyneins ensure proper cell division, regulate exchange of materials between organelles, and contribute to the internal organization of eukaryotic cells. Two recent studies show that, upon dimerization, cytoplasmic dyneins intrinsically adopt an autoinhibited configuration that can […]

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