RETRACTION
Volume 30, no. 11, p. 2681–2692, 2010, https://doi.org/10.1128/MCB.01480-09. We hereby retract this article. After publication, the article was found to have image duplications in Fig. 5A and 6B, which represent a major deviation from established scientific standards for publication. We did not notice the duplication during submission. The first author indicated that it happened during transfer of images to Photoshop.
We apologize for this data misrepresentation.