Specificity:Recognizes native, undenatured human Collagen IV . Using immunohistochemical staining of basal laminae, recognizes an epitope located on the alpha1 and/or alpha2 chains of human Collagen IV. Does not crossreact with human collagen types I, II, III, V, VI, or VII. Does not react with human vitronectin, fibronectin or chondroitin sulfate types A, B and C. Species Crossreactivity: primate