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Effect of RA on type IV collagen hydrolytic activity by T. flavoviridis venom. 7.5% SDS-PAGE of time-dependent digestion of type IV collagen by T. flavoviridis venom in the presence or absence of RA. (a) venom without RA, (b) venom with RA. Molecular weight makers of 97, 66, 43, and 30 kDa were used.
