Provided below are ELISA kits targeting ALG2 alpha-1,3/1,6-mannosyltransferase, a human protein encoded by ALG2. This protein is 416 amino acids long, with a mass of 47.1 kDa, and is a member of the Glycosyltransferase group 1 family, Glycosyltransferase 4 subfamily. 2 isoforms have been identified. This is reported to be a membrane protein. There is a noted implication in Congenital disorder of glycosylation 1I. Other alias names for this protein include: GDP-Man:Man(1)GlcNAc(2)-PP-Dol alpha-1,3-mannosyltransferase, GDP-Man:Man(2)GlcNAc(2)-PP-Dol alpha-1,6-mannosyltransferase, asparagine-linked glycosylation 2 homolog (S. cerevisiae alpha-1,3-mannosyltransferase), and asparagine-linked glycosylation 2 homolog (yeast alpha-1,3-mannosyltransferase).