Kendall's tau () and co-expression () computed for the HK genes in KEGG pathways.

aBased on the distribution of the percentage of HK genes for each of the 155 KEGG pathways, the p value for a 34% was calculated to be 0.04, and 0.006 for 100%.bWith the exception of the Proteasome pathway, these values are statistically significant (p value−20 by the paired two-sample Student's t test) compared to the value of 0.58±0.00 obtained for the NHK genes mapped to the remaining 148 KEGG pathways. The p value for the Proteasome pathway was 7.67×10−4.cAll these values are statistically significant (p value−20 by Student's t test) compared to the alternative hypothesis of no correlation.dSE: standard error.