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Table 3 T-tests results for the ACA distributions, measured in different structural environments*

From: "Hot cores" in proteins: Comparative analysis of the apolar contact area in structures from hyper/thermophilic and mesophilic organisms

  ACA Distributions+
  Structural environment
P ≤ 0.05** Total SCRs α-Helices in SCRs β-strands in SCRs
All     
Dataset A 0.0864 0.0640 0.0859 0.9437
Dataset B 0.0124 0.0069 0.0159 0.1745
Shapiro-Wilk Test° 0.90/0.99 0.07/0.002°° 0.96/0.59  
Hyperthermophiles     
Dataset A 0.0790 0.0029 0.0524 0.8120
Shapiro-Wilk Test°   0.26/0.90 0.97/0.16  
Dataset B 0.0205 0.0001 0.0113 0.061
Shapiro-Wilk Test° 0.53/0.42 0.49/0.36 0.13/0.003°°°  
Thermophiles     
Dataset A 0.6901 0.5139 0.8387 0.7080
Dataset B 0.3357 0.7530 0.3123 0.6027
  1. * Values are expressed as the associated probability P of acceptance of the null hypothesis
  2. ** P ≤ 0.05 are considered statistically significant, and are bolded
  3. + The statistical significance of the observed differences of ACA between hyper/thermophilic proteins and their mesophilic counterparts
  4. °The obtained P(t) of the Shapiro-Wilk test for significant results. The distributions of ACA are presented in the form hyper/thermophilic-mesophilic distribution
  5. °°The obtained P(t) of the Shapiro-Wilk test is 0.46 removing 2 outliers; P(t) of the associated t-test = 0.005 removing the outliers
  6. °°°The obtained P(t) of the Shapiro-Wilk test is 0.62 removing 3 outliers; P(t) of the associated t-test = 0.001 removing the outliers