S100 Calcium Binding Protein

**Semantic type:** Amino Acid, Peptide, or Protein

**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.

**Synonyms:** - S-100 Protein - S100 - S100 Protein