NCLN (Nicalin): NCLN is a protein that forms part of a complex regulating intracellular signalling pathways essential for development. It plays a critical role in modulating Notch signalling — a pathway controlling cell differentiation, proliferation, and apoptosis. Disruption of NCLN or related pathways can contribute to developmental disorders and various diseases, including cancer, emphasising its importance in cellular communication and overall developmental processes.