Purity ~90% (SDS-PAGE). Glucosamine-6-phosphate isomerase 1, also known as GNPDA1, catalyzes the conversion of glucosamine-6-phosphate to fructose-6-phosphate, a reaction that under physiological conditions proceeds to the formation of fructose-6-phosphate. It exist is ubiquitously expressed with highest expression in testes, ovary and heart. In addition, GNPDA1 triggers calcium oscillations in mammalian eggs. These oscillations serve as the essential trigger for egg activation and early development of the embryo. Source: Recombinant protein corresponding to aa1-289 of human GNPDA1, fused to His-tag at N-terminal expressed in E. coli. Molecular Weight: ~34.8kD AA