Murmur or cyanosis suggestive of congenital heart defects (particularly conotruncal anomalies) is associated with DGS, severe congenital neutropenia (SCN) type 4, CHARGE syndrome, Kabuki Syndrome, and MST1/STK4 deficiency.1, 10, 16, 33. This evidence concerns the gene STK4 and Kabuki syndrome.