Article title: Phosphorylation of the p52 NF-kB subunit. Authors: Benjamin Barre and Neil D Perkins. Journal: Cell Cycle. Bibliometrics: Volume 9, Issue 24, 2010 pages 4774-4775. DOI: 10.4161/cc.9.24.14246.Publisher: Taylor & Francis. We, the Editor and Publisher of Cell Cycle, have removed the following accepted manuscript that was posted online 15 December 2010: Benjamin Barre and Neil D Perkins, "P Phosphorylation of the p52 NF-kB subunit" DOI: 10.4161/cc.9.24.14246. Cell Cycle. This article has been removed due to a number of issues with the original 2010 Cell Cycle article entitled "Regulation of activity and function of the p52 NF-kB subunit following DNA damage" (Barre B., et al. Cell Cycle 2010; 9:4795–804; PMID: 21131783; http://dx.doi.org/10.4161/cc.9.24.14245). This article is a commentary on the retracted paper detailed above. Consequently, in our opinion the integrity of the manuscript has been compromised, and there is no option but to retract the paper. We note we received, peer-reviewed, accepted, and published the article in good faith. The retracted article will remain online to maintain the scholarly record, but it will be digitally watermarked on each page as RETRACTED.