👉 Parnuclein is a protein that plays a key role in regulating the metabolism of certain cells. It is a member of the "par" family of proteins, which includes proteins involved in energy production and cell division. In more detail, par nucleins are proteins with two identical domains, each containing three transmembrane segments. These domains are important for their function because they allow them to interact with other proteins and molecules that regulate metabolism. One type of par nuclein is the pPAR family