Table 2

Statistical significance of the differences in evolutionary rates between groups of proteins with different numbers of interactions.

Bin (# interactions) comparisonsa
Pb

S. cerevisiae S. pombe
41 – 60 vs. 1 – 40
8.3 × 10-4
31 – 60 vs. 1 – 30
2.4 × 10-2
21 – 60 vs. 1 – 20
1.7 × 10-4
H. pylori 26695 H. pylori J99
21 – 55 vs. 1 – 20
1.5 × 10-1
15 – 55 vs. 1 – 14
1.8 × 10-1
11 – 55 vs. 1 – 10
3.2 × 10-1
H. pylori 26695 C. jejuni
21 – 47 vs. 1 – 20
9.8 × 10-1
11 – 47 vs. 1 – 10
5.1 × 10-1

a Orthologous pairs of proteins were placed into bins based on the number of protein-protein interactions (Figure 3). b P-value for the Student's ttest comparing the mean evolutionary rates between orthologs for bins with distinct ranges in the number of protein-protein interactions.

Jordan et al. BMC Evolutionary Biology 2003 3:1   doi:10.1186/1471-2148-3-1