The distribution of the jackknife correlation of gene expression among the immunome proteins. Density plot for the distribution of gene expression correlation of 1140 immune response-related genes used in this study. Gene expression values were normalized, and integrated across experiments after batch effect analysis. The correlation coefficient for each gene pair was derived by the jackknife Pearson correlation coefficient across all the integrated microarray samples. A major part of the gene expression correlation values is between -0.5 and 0.5.