KRAS Gene
The KRAS gene provides instructions for making a protein called K-Ras that is part of a signaling pathway known as the RAS/MAPK pathway. These proteins play important roles in cell division, cell differentiation, and apoptosis. Mutations in the KRAS gene are an uncommon cause of cardiofaciocutaneous syndrome, accounting for less than 5 percent of cases. Several mutations in the KRAS gene have been identified in people with characteristic features of the disorder, which include heart defects, distinctive facial features, and skin abnormalities.