Purity: > 85% by SDS - PAGE Format: Liquid. In 20mM Tris-HCl, pH8.0, 2M urea, 20%Glycerol. RGN (Regucalcin) belongs to the SMP-30/CGR1 family. This protein is Ca (2+)-binding protein that does not contain EF-hand motif of Ca (2+)-binding domain. RGN plays a pivotal role in the keep of intracellular Ca2+ homeostasis due to activating Ca2+ pump enzymes in the plasma membrane (basolateral membrane), microsomes (endoplasmic reticulum) and mitochondria of many cells. Also, it plays a multifunctional role in the regulation of cell functions in liver, kidney cortex, heart and brain and a suppressor protein for cell signaling systems in many cell types.