Fig. 3From: Screening and characterization of a non-insecticidal Bacillus thuringiensis strain producing parasporal protein with selective toxicity against human colon cancer cell linesSodium dodecyl sulphate–polyacrylamide gel electrophoresis profile analysis of B.t.LDC 501 parasporal protein. Lanes 1 Purified cytotoxic protein fraction, 2 solubilized proteins, 3 proteinase K-activated proteins, M molecular weight of standard protein markersBack to article page