A Correction to the Research Article Titled: “Amplification of the Driving Oncogene, KRAS or BRAF, Underpins Acquired Resistance to MEK1/2 Inhibitors in Colorectal Cancer Cells” by A. S. Little, K. Balmanno, M. J. Sale, S. Newman, J. R. Dry, M. Hampson, P. A. W. Edwards, P. D. Smith, S. J. Cook

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Science Signaling  26 Apr 2011:
Vol. 4, Issue 170, pp. er2
DOI: 10.1126/scisignal.4170er2

During processing of the manuscript, the image in the top panel of Fig. 1C was inadvertently reversed so that the data were erroneously presented in the reverse order from that in the image supplied by the authors. Therefore, the data as presented no longer corresponded to the indicated drug concentrations. A corrected PDF ( is available starting 26 April 2011.

The original uncorrected PDF can be accessed from

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