RETRACTION
Volume 85, no. 13, p. 6521–6534, 2011, https://doi.org/10.1128/JVI.00367-11. It has been called to our attention that in Fig. 6C, lanes 4 and 10 (top blot) and lanes 9 and 10 (bottom blot) are duplicates. Since the samples used for this figure are no longer available, we are taking responsibility for the mistakes and retracting the paper.