the fine epitope specificity of two murine monoclonal antibodies ( hp 2g2 and hp 4d3 ) 1 raised against rabbit xiphoid cartilage proteoglycan monomer ( fraction aldldl ) was determined by solid-phase radioimmune assay utilizing native and heat-denatured ( 50 degrees c , 30 min ) aldldl as antigen .
C0003316
epitope
C0003320
antigen