CNTN1:? Myopathy, congenital, Compton-North # 612540; GRIN2B: Developmental and epileptic encephalopathy; Developmental and epileptic encephalopathy 27 616139 AD 3 Intellectual developmental disorder, autosomal dominant 6, with or without seizures 613970. Here, GRIN2B is linked to Epileptic encephalopathy.