UDP-GlcNAc 2-epimerase/ManNAc 6-kinase. GNE. is a bi-functional enzyme that plays a key role in sialic acid biosynthesis. Mutations of the GNE protein cause sialurea or autosomal recessive inclusion body myopathy/Nonaka myopathy. https://www.marketingjeunesse.com/product-category/nail/