Figure 2Immunohistochemistry for mannose binding lectin (MBL) in lung allograft tissue (10X) in explanted lung allograft tissue with bronchiolitis obliterans as detected by anti-MBL antibody (mouse-anti-human), DAB, and methylene green counterstain.Immunohistochemistry for mannose binding lectin (MBL) in lung allograft tissue (10X) in explanted lung allograft tissue with bronchiolitis obliterans as detected by anti-MBL antibody (mouse-anti-human), DAB, and methylene green counterstain. Here, MBL2 is linked to bronchiolitis obliterans syndrome.