- Permanent neonatal diabetes due to paternal germline mosaicism for an activating mutation of the KCNJ11 Gene encoding the Kir6.2 subunit of the beta-cell potassium adenosine triphosphate channel. Gloyn, A.L., Cummings, E.A., Edghill, E.L., Harries, L.W., Scott, R., Costa, T., Temple, I.K., Hattersley, A.T., Ellard, S. J. Clin. Endocrinol. Metab. (2004)