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Table 3 Hinge frequency of occurrence in various types of secondary structure.

From: Hinge Atlas: relating protein sequence to sites of structural flexibility

Secondary structure

Hinge Residues (count)

All residues (count)

Hinge Residues (expected)

HIsecondarystructure

P-value

α-helix

75

18210

290

-0.587

1·8-67

3–10 helix

27

1937

31

-0.0577

0.27

Ï€-helix

0

5

0

 

0.92

Extended

     

conformation

160

11138

177

-0.0446

0.076

Isolated bridge

19

670

11

0.251

0.12

Turn

306

12472

199

0.188

5.9·10-17

Coil (none of the others)

286

10408

166

0.237

1.2·10-22

Total

873

54840

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