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Table 3 Results of directional selection analysis of marine and freshwater copepod COI

From: Directional Darwinian Selection in proteins

 

Calanoids

Cyclopoids

Properties

Proton

Input

Proton

Output

Proton

Input

Proton

Output

Hydrophobicity

    

   h

- - -

   

   H p

- -

 

- -

 

   H t

-

 

-

 

Ionization Constants

    

   pK'

    

   pH i

    

Molecular Size

    

   B l

- - -

   

   c

    

   M w

-

   

   V 0

- - -

 

-

 

Non-bonded Energy

    

   E l

-

   

   E sm

    

   E t

- -

   

Polarity & Polarizability

    

   P r

+ + +

 

+ +

 

   p

+ + +

 

+

 

   μ

- -

 

-

 

Secondary Structure

    

   P α

    

   P β

    

   P c

+

   

   C a

-

 

-

 

   P t

+ +

   

Solvent Accessibility

    

   R a

    

Tertiary Structure

    

   N a

- - -

   

   B r

- -

 

-

 

   K 0

+

   

   F

+ + +

 

+ +

 
  1. Properties among the 25 defined in Table 2 that experienced significant directional shifts as copepods evolved from being adapted to a marine habitat to life in freshwater ("+" indicates significant increases in the property, while "-" indicates significant decreases in the property; one symbol indicates significance at the α = 0.1 level, while two symbols indicate significance at the α = 0.05 level and three indicates α = 0.02 significance).
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BMC Bioinformatics

ISSN: 1471-2105

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