Purity ~85% (SDS-PAGE). FN3K catalyzes the phosphorylation of fructosamines which may result in deglycation, the non- enzymatic reaction of glucose with primary amines followed by Amadori re-arrangement. Phosphorylation of fructosamines may initiate metabolism of the modified amine and lead to the de-glycation of fructoselysine and of glycated proteins. Source: Recombinant protein corresponding to aa1-309 from human FN3K, fused to His-tag at N-terminal expressed in E. coli. Molecular Weight: ~37kD (332aa) AA