Purity ~95%. Galactokinase is a major enzyme for the metabolism of galactose and its deficiency causes congenital cataracts during infancy and presenile cataracts in the adult population. GALK1 sequence shares the greatest level of conservation, 44.5% identity with that from E. coli and 34.6% aa identity with the product of the human GALK2 gene. Source: Recombinant protein corresponding to GALK1, fused to His-tag at N-terminal expressed in E.coli. Molecular Weight: ~45.1kD Applications: Suitable for use in ELISA and Western Blot.