ERRATUM
Volume 6, no 4, e01122-15, 2016, https://doi.org/10.1128/mBio.01122-15. In the Results section (PDF page 3), we mistakenly duplicated the DAPI panel of siSAMD9_1 in siSAMD9_3 in Fig. 1C. The incorrect panel has now been replaced with the correct one. The error has no impact on any of the conclusions. We apologize for not detecting and correcting this error before publication. The revised Fig. 1 shows the corrected panel.