Delta-like protein 1 (DLL1) is a 90-100kD type I transmembrane protein that belongs to the Delta/Serrate/Lag-2 (DSL) family of Notch ligands. Mature human DLL1 consists of a 528 amino acid (aa) extracellular domain (ECD) with one DSL domain and eight EGF-like repeats, a 23aa transmembrane segment and a 155aa...

The Notch signaling pathway is an evolutionarily conserved pathway in multi­cellular organisms, which is vital for cell­cell communication, important during fundamental developmental and physiological processes, including regulation of cell fate decisions during neuronal, cardiac and endocrine development, stem cell...