VOLUME 284 (2009) PAGES 13856–13868
The publisher of the Journal of Biological Chemistry is issuing this Expression of Concern to notify readers that questions have been raised with the corresponding author's institution regarding some of the data and the conclusions in the articles listed above.
This Expression of Concern is solely intended to notify readers for informational purposes. It is not a statement regarding the validity of the data. The Journal of Biological Chemistry will provide additional information as it becomes available.