Figure 4From: Human parvovirus B19 nonstructural protein NS1 enhanced the expression of cleavage of 70 kDa U1-snRNP autoantigenCorrelation of (A) caspase-3 activity and (B) caspases-9 to the 40 kDa U1-RNP in COS-7 cells transfected with pEGFP-NS1.Back to article page