Fig. S3.
Traptamer activity is due to the expressed protein. C127 cells were infected with high-titer stocks of MSCV vector or MSCV expressing BPV E5, traptamer LI-11 or LI-7, a codon optimized version of LI-11 or LI-7, or LI-11 or LI-7 with a premature stop codon at position 13. Cells were photographed at 100× magnification 10 d later.