Diabetes, Vol 42, Issue 5 773-777, Copyright © 1993 by American Diabetes Association
Organization of the human GLUT2 (pancreatic beta-cell and hepatocyte) glucose transporter gene
J Takeda, T Kayano, H Fukomoto and GI Bell
Howard Hughes Medical Institute, Chicago, IL 60637.
The gene encoding the predominant facilitative glucose transporter
expressed in pancreatic beta-cells and hepatocytes, termed GLUT2, has been
cloned and characterized. The human GLUT2 gene is composed of 11 exons
spanning approximately 30 kilobases. The sequence of the promoter region
and all exons and adjacent intron regions has been determined and deposited
in the GenBank database. Two highly polymorphic simple tandem repeat DNA
polymorphisms useful for linkage studies were localized in introns 1 and
4a. In addition, a 168-base pair insertion/deletion polymorphism was
identified in intron 3. The characterization of the human GLUT2 gene will
facilitate studies of its role in the development of diabetes mellitus.