所長招聘セミナー
日 時 | 2013年03月25日 15:00~16:30 |
---|---|
場 所 | 山手3号館2階西・共通セミナー室 |
演 者 | Dr. Francesco Tombola(Assistant Professor) (Department of Physiology and Biophysics, University of California, Irvine, USA) |
演 題 | Multitasking voltage-sensing domains as proton channels |
要 旨 | Biological processes as diverse as neuronal signaling, muscle contraction, the immune response, and the heart beat depend on the proper function of proteins containing voltage-sensing domains (VSDs). In recent years, our view on these domains has changed dramatically. Once regarded as simple modulators of pore domains in voltage-gated sodium, potassium, and calcium channels, they are now recognized as structural units that perform different tasks in different proteins, as they control the activity of enzymatic domains in voltage-sensitive phosphatases, act as gated pores in voltage-gated proton channels, and sense chemical signals in thermosensitive TRP channels. VSD malfunction, or misregulation, is the cause of neurological disorders, cardiac arrhythmias, and cancer. In this talk I will focus on the structural organization and function of the voltage-gated proton channel Hv1 as a model for ion permeable VSDs. Voltage-sensing domain of voltage-gated proton channel Hv1 shares mechanism of block with pore domains. Neuron 77(2) 274-286 (2013) |
連絡先 | 神経機能素子研究部門 中條浩一knakajo@nips.ac.jp |