The transcription factor Pax6 is required for pancreatic β cell identity, glucose-regulated ATP synthesis and Ca2+ dynamics in adult mice. - Mitchell, RK; Nguyen-Tu, MS; Chabosseau, P; Callingham, RM; Pullen, TJ; Cheung, R; Leclerc, I; Hodson, DJ; Rutter, GA (Journal of Biological Chemistry, 2017)