Correction for: Amplification of MDMX (or Mdm4) directly contributes to tumor formation by inhibiting p53 tumor suppressor activity (American Society for Microbiology (2004) 24:13 (5835–5843) DOI: 10.1128/MCB.24.13.5835-5843.2004)

Volume 24, no. 13, p. 5835–5843, 2004, https://doi.org/10.1128/MCB.24.13.5835-5843.2004. Page 5841, Fig. 5: Recently, two inaccuracies were brought to our attention. Panel A is a composite blot, and this should have been explicitly reported. The blot was split after lane 2 for consistency with the order of presentation of samples T1, T2, and T3. Also, the top right image in panel B was erroneously labeled: it does not represent the p53 staining in a two-copy tumor but rather is a magnification of the HdmX staining for tumor 3 and should be disregarded. These results were generated well over 15 years ago from samples at the European Institute of Oncology tissue microarray facility, which has subsequently been restructured and relocated. After numerous attempts, we have failed to identify how these mistakes were created or locate the original underlying data. This does not undermine the work or the conclusions of our study, which have been extensively cited and validated. We nonetheless deeply apologize to all readers for not being able in this occasion to maintain the high standards of research data reporting we consistently strive for.