NCIt definition : A family of low molecular weight proteins that are characterized by the presence of
two EF-hand calcium binding domains. These proteins form homodimers that localize
either in the cytoplasm or nucleus of neural crest-derived cells and are involved
in the regulation of many cellular processes such as cell cycle progression and differentiation.;
NCIt note : The name is derived from the fact that the protein is 100% soluble in ammonium sulfate
at neutral pH.;