Voluntary and involuntary muscle contraction depends on this gene expression product.

Neuregulin gene expression

Explanation:

Neuregulin 1 bis a cell grip atom that in people is encoded by the NRG1 quality. NRG1 is one out of the four proteins in the neuregulin family that follow up on the EGFR group of receptors.  

Neuregulin 1 is created in various isoforms by elective joining, which enables it to play out a wide assortment of functions.

not sure if this is what you'r looking for nnew= nold