Endocrine Abstracts

Introduction: GLUT4 protein is the most important isoform of glucose transporters in skeletal muscle. Reduction in its content and/or translocation is related to insulin resistance and type 2 diabetes mellitus. In skeletal muscle cells there is also an ATP-sensitive potassium (KATP) channel with two subunits, sulfonylurea receptor type 2A, ABCC9 (SUR2A) and KIR6.2 (KCNJ11). In pancreatic B cells, this channel triggers insulin secretion in response to the rise in glucose levels...