Channel Potassium Nicotinic
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چکیده
منابع مشابه
Role of Nicotinic Acetylcholine Receptor on Efferent Inhibition in Cochlear Hair Cell
The α9α10 nicotinic acetylcholine receptors (nAChRs) mediates efferent inhibition of hair cell function within the auditory sensory organ. Gating of the nAChRs leads to activation of calcium-dependent potassium channels to hyperpolarize the hair cell. In efferent system, main calcium providers to SK channel are nAChR and synaptic cistern, which contribution to efferent inhibition is different b...
متن کاملEngineering light-gated ion channels.
Ion channels are gated by a variety of stimuli, including ligands, voltage, membrane tension, temperature, and even light. Natural gates can be altered and augmented using synthetic chemistry and molecular biology to develop channels with completely new functional properties. Light-sensitive channels are particularly attractive because optical manipulation offers a high degree of spatial and te...
متن کاملIon channels and epilepsy.
Ion channels provide the basis for the regulation of excitability in the central nervous system and in other excitable tissues such as skeletal and heart muscle. Consequently, mutations in ion channel encoding genes are found in a variety of inherited diseases associated with hyper- or hypoexcitability of the affected tissue, the so-called 'channelopathies.' An increasing number of epileptic sy...
متن کاملThree-dimensional structure of a voltage-gated potassium channel at 2.5 nm resolution.
BACKGROUND The voltage-gated potassium channel Shaker from Drosophila consists of a tetramer of identical subunits, each containing six transmembrane segments. The atomic structure of a bacterial homolog, the potassium channel KcsA, is much smaller than Shaker. It does not have a voltage sensor and other important domains like the N-terminal tetramerization (T1) domain. The structure of these a...
متن کاملParoxysmal hypnogenic dyskinesia is associated with mutations in the PRRT2 gene
OBJECTIVE To explore the potential causative genes of paroxysmal hypnogenic dyskinesia (PHD), which was initially considered a subtype of paroxysmal dyskinesia and has been recently considered a form of nocturnal frontal lobe epilepsy (NFLE). METHODS Eleven patients with PHD were recruited. Mutations in proline-rich region transmembrane protein-2 (PRRT2), myofibrillogenesis regulator 1 (MR-1)...
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تاریخ انتشار 2007