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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
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BMC Structural Biology

ISSN: 1472-6807

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