Form:Supplied as a liquid in PBS, pH 7.2. Labeled with R-Phycoerythrin (PE).
Specificity:Recognizes the heavy chain of human IgG4 at an epitope in the Fc region. Does not crossreact with IgG1, IgG2, IgG3, IgM or IgA. Species Crossreactivity: chimpanzee