Nicotinic acid-adenine dinucleotide phosphate activates the skeletal muscle ryanodine receptor.


Calcium is a universal second messenger. The temporal and spatial information that is encoded in Ca(2+)-transients drives processes as diverse as neurotransmitter secretion, axonal outgrowth, immune responses and muscle contraction. Ca(2+)-release from intracellular Ca(2+) stores can be triggered by diffusible second messengers like Ins P (3), cyclic ADP… (More)


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