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Table 3 Correlations between orthologous proteins in the S. cerevisiae and C. elegans PINs Observed rank correlations (measured by Kendall's τ) for evolutionary rates (measured with respect to S.mikatae and C. briggsae, respectively), connectivity and protein expression level (estimated by mRNA expression level in S. cerevisiae and CAI in C. elegans).

From: Comparative analysis of the Saccharomyces cerevisiae and Caenorhabditis elegans protein interaction networks

Quantity Observedτ 95% CI
Evolutionary Rate 0.24 0.12–0.35
Connectivity 0.07 0.001–0.14
Expression 0.32 0.26–0.39