Other relations. The sibs of the father of a proband with focal HI could also be heterozygous for an ABCC8 or KCNJ11 pathogenic variant. gene encoding the SUR1 subunit of KATP could lead to a range of phenotypes, which includes neonatal diabetic issues mellitus ( Bernard B. Drop wrote: Still, https://www.multichain.com/qa/user/abc88football