“…Glucose-regulated gene transcription is possible by using phosphoenolpyruvate carboxykinase (PEPCK) promoter or the L-type pyruvate kinase (L-PK) promoter inserted above insulin gene sequence. The PEPCK promoter is stimulated by glucagon and inhibited by insulin, 8,23,47,63,64 while the L-PK promoter is triggered by glucose and fructose and inhibited by glucagon. 10,23,24,27,47,65 Glucose-stimulated insulin release was studied using glucokinase and GLUT2 promoters.…”