Figure 3From: Comparison of two label-free global quantitation methods, APEX and 2D gel electrophoresis, applied to the Shigella dysenteriae proteome Correlation of protein abundances estimated by APEX vs . 2-DE. 255 SD1 proteins common to both the APEX and 2-DE datasets were correlated for protein abundance estimations by the two methodologies for an overall Spearman rank correlation of R s = 0.81 and squared Pearson correlation of R2= 0.67.Back to article page