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Table 2 Statistics of the networks generated by the NHD and DDD models

From: Difference in gene duplicability may explain the difference in overall structure of protein-protein interaction networks among eukaryotes

Species Model n a σ b ν α b β b <k>a <C> a <L> a M a
Yeast NHD+A 3,891 0 0.18 0.75 0.028 3.74 (0.07) 0.066 (0.006) 6.23 (0.12) 0.837 (0.008)
  DDD+A 3,891 -0.05 0.51 0.50 0.019 3.73 (0.11) 0.065 (0.006) 5.63 (0.12) 0.853 (0.008)
  NHD+S 3,891 0 0.26 0.62 0.042 3.76 (0.13) 0.069 (0.005) 8.13 (0.36) 0.866 (0.012)
  DDD+S 3,891 -0.05 0.48 0.49 0.026 3.71 (0.15) 0.066 (0.007) 6.27 (0.16) 0.862 (0.010)
Worm NHD+A 2,898 0 0.18 0.76 0.032 3.62 (0.08) 0.071 (0.006) 6.10 (0.11) 0.831 (0.009)
  DDD+A 2,898 -0.02 0.31 0.70 0.029 3.58 (0.09) 0.075 (0.008) 6.00 (0.13) 0.841 (0.009)
  NHD+S 2,898 0 0.25 0.63 0.048 3.61 (0.11) 0.073 (0.004) 7.93 (0.36) 0.889 (0.011)
  DDD+S 2,898 -0.01 0.28 0.62 0.046 3.70 (0.10) 0.073 (0.006) 7.76 (0.33) 0.880 (0.011)
Fly NHD+A 2,477 0 0.18 0.86 0.016 2.84 (0.04) 0.026 (0.004) 6.41 (0.11) 0.860 (0.006)
  DDD+A 2,477 -0.03 0.34 0.80 0.015 2.85 (0.05) 0.027 (0.004) 6.34 (0.12) 0.865 (0.006)
  NHD+S 2,477 0 0.25 0.67 0.020 2.90 (0.08) 0.025 (0.004) 9.11 (0.45) 0.885 (0.010)
  DDD+S 2,477 -0.02 0.34 0.65 0.018 2.91 (0.09) 0.024 (0.004) 8.63 (0.41) 0.883 (0.011)
Human NHD+A 2,783 0 0.17 0.68 0.025 4.28 (0.13) 0.070 (0.008) 5.79 (0.12) 0.802 (0.011)
  DDD+A 2,783 -0.02 0.28 0.62 0.024 4.25 (0.13) 0.070 (0.007) 5.65 (0.12) 0.814 (0.011)
  NHD+S 2,783 0 0.25 0.58 0.035 4.38 (0.13) 0.070 (0.007) 6.93 (0.20) 0.826 (0.012)
  DDD+S 2,783 0 0.25 0.58 0.035 4.38 (0.13) 0.070 (0.007) 6.93 (0.20) 0.826 (0.012)
Malaria parasite NHD+A 1,267 0 0.22 0.64 0.004 4.29 (0.15) 0.015 (0.004) 5.28 (0.10) 0.752 (0.014)
  DDD+A 1,267 1.00 -0.01 0.79 0.007 4.25 (0.14) 0.016 (0.004) 5.24 (0.09) 0.715 (0.015)
  NHD+S 1,267 0 0.24 0.55 0.005 4.28 (0.20) 0.013 (0.005) 6.01 (0.20) 0.771 (0.016)
  DDD+S 1,267 5.00 -0.01 0.62 0.007 4.34 (0.20) 0.015 (0.005) 6.51 (0.28) 0.754 (0.020)
  1. NOTE. Each value was obtained by taking the mean among 100 networks generated by simulations. The number in parentheses represents the standard deviation calculated from the 100 networks.
  2. a. See Table 1.
  3. b. Parameters used in the simulations. See Methods.