Description
U1-70 is a solid phase enzyme immunoassay employing recombinant human 70 kDa protein of the U1-snRNP complex for the quantitative detection of antibodies against the 70 kDa U1-RNP in human serum. The assay is a tool in the diagnosis of mixed connective tissue diseases (MCTD) and systemic lupus erythematosus (SLE).