Purity:Purified by Protein G affinity chromatography from tissue culture supernatant.
Form:Supplied as a liquid in PBS, pH 7.2. Labeled with Alkaline Phosphatase.
Specificity:Recognizes a common determinant on the beta chain of human MHC Class II and stains cells expressing HLA-DR, DP and DQ. The antigen is expressed by B lymphocytes, monocytes and activated T lymphocytes.