Severe Congenital Neutropenia 2, also known as scn2, is related to neutropenia, severe congenital, 2, autosomal dominant and migraine, familial hemiplegic, 3. An important gene associated with Severe Congenital Neutropenia 2 is MIMT1 (MER1 Repeat Containing Imprinted Transcript 1). Affiliated tissues include brain.