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Table 2 Physicochemical Properties of the AARs in Positively Selected versus Non-Positively Selected Mammalian Genes

From: The expansion of amino-acid repeats is not associated to adaptive evolution in mammalian genes

  Acidic Basic Polar Hydrophobic
PSGs 10 (0.95) 0 (-1.08) 7 (-2.51) 17 (3.23)
non-PSGs 970 (-0.083) 154 (0.094) 2314 (0.22) 1031 (-0.28)
  1. Counts of amino acid categories using the Lenhinger classification for each AAR in PSGs and non-PSGs. Values shown in brackets correspond to the residuals for each cell obtained in a Pearson's χ2 test.