the Antarctic octopus edits its RNA at nine sites, changing the amino acid sequence of potassium channels and enabling it to offset the inhibition of nerve cell firing by cold.
Education: Big Conductance Potassium Channels. So today we continue on the potassium channel journey and today we do the calcium activated potassium channels There are small conductance intermediate and big conductance calcium activated potssium channels called the SK channels and theBKchannels. They are so called because of their small single channel conductance in the order of 10 pS(picoseimens = unit of electrical conductance The SK channel family contains 4 members -SK1SK2SK3 andSK4…
Drugs affecting the cardiac action potential. The sharp rise in voltage ("0") corresponds to the influx of sodium ions, whereas the two decays ("1" and "3", respectively) correspond to the sodium-channel inactivation and the repolarizing eflux of potassium ions. The characteristic plateau ("2") results from the opening of voltage-sensitive calcium channels.
KcsA Potassium Channel Copper, Steel - 2011 Mike Tyka/ computer engineer/ artist These are sculptures of membrane channel proteins that he studied using computer simulations and then represented in these beautiful, suspended structures
Learn more about nerve impulse transmission within a neuron: action potential in the Boundless open textbook. Signals are transmitted from neuron to neuron via an action potential, when the axon membrane rapidly depolarizes and repolarizes.