NCIt definition : Human NOTCH2 wild-type allele is located within 1p13-p11 and is approximately 158
kb in length. This allele, which encodes neurogenic locus notch homolog protein 2,
is involved in the mediation of cell-cell signaling. Mutation of the gene is associated
with both Alagille syndrome type 2 and Hajdu-Cheney syndrome.;