Nonsense mutation in the glucokinase gene causes early-onset non-insulin-dependent diabetes mellitus. - Vionnet,N.; Stoffel,M.; Takeda,J.; Yasuda,K.; Bell,G.I.; Zouali,H.; Lesage,S.; Velho,G.; Iris,F.; Passa,P.h.; Froguel,P.h.; Cohen,D. (Nature, 1992)