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Clustered image map relating the expression levels of 52 proteins in the NCI-60 cell lines. Data were generated by using the DI25 algorithm and data mean centered across both cells and proteins. (Right Lower Inset) The difference in c-erbB2 level between MDA-MB435 cells (DI25 = –1.4) and MDA-N (DI25 = +0.5). KRT, cytokeratins.
