VENTANA anti-MLH1 (M1) Mouse Monoclonal Primary Antibody (VENTANA anti-MLH1 (M1) antibody) is intended for the qualitative detection of MLH1 protein in formalin-fixed, paraffinembedded tissue sections. VENTANA anti-MLH1 (M1) antibody is ready to use on BenchMark IHC/ISH instruments with the OptiView DAB IHC Detection Kit and ancillary reagents.