Provided below are ELISA kits targeting phosphatidylinositol glycan anchor biosynthesis class V, a human protein encoded by PIGV. This protein is 493 amino acids long, with a mass of 55.7 kDa, and is a member of the PIGV family. It is also an enzyme classified as a(n) transferase (broad). There is a noted implication in Hyperphosphatasia with mental retardation syndrome 1. Other alias names for this protein include: GPI mannosyltransferase 2, GPI mannosyltransferase II, Ybr004c homolog, GPI-MT-II, and GPI mannosyltransferase II.