Indoor Biotechnologies markets a recombinant Der p 2 specific IgE. This antibody is a construct of mouse monoclonal anti-Der p 2 with human Fc epsilon heavy chain. The 2B12IgE functions as a human IgE antibody and is monoclonal. See: http://inbio.com/UK/Products/Antibodies/Mouse-Human-Chimeric/Mouse-anti-Der-p-2-human-IgE?cPath=& Product Code is CH-1. Our company has also recently released a multiplex arrays for measuring IgE ab on the Luminex xMAP system: IgE-QBA. The array measures IgE to 11 allergens, as well as total IgE. http://www.inbio.com/UK/Products/IgE-QBA