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. 2015 Nov 23;44(1):330–341. doi: 10.1093/nar/gkv1286

Figure 4.

Figure 4.

Cap-defective mutant L proteins are not able to synthesize full-length mRNAs efficiently. The WT and mutant VSV L proteins (0.15 μg) were subjected to in vitro transcription reactions with [α-32P]GTP, the other three NTPs, the recombinant P protein (0.05 μg) and the native N-RNA complex (0.4 μg). After treatment with RNase H and oligo(dT), transcripts were analyzed by 20% (A) or 5% (B) urea-PAGE followed by autoradiography. Lanes 1, 8, 20 and 28 indicate no L protein. M lanes show marker RNAs with the indicated lengths. The positions of previously identified transcripts (18) are indicated on the right. Le indicates the leader RNA.