Table 6 Frequency of occurrence of the protein segments defined by our alphabet in four main SCOP classes

A

54859

2.95

255473

8.83

278238

5.46

161041

6.07

R

91363

4.92

148361

5.13

270345

5.31

145619

5.49

N

76176

4.10

309834

10.71

340682

6.69

202555

7.64

D

21055

1.13

127159

4.39

112078

2.20

66959

2.53

C

34856

1.88

172334

5.96

193952

3.81

102632

3.87

Q

102444

5.51

111333

3.85

271893

5.34

138081

5.21

E

58672

3.16

782607

27.06

620717

12.18

427778

16.14

G

42350

2.28

72105

2.49

147390

2.89

76968

2.90

H

39017

2.10

115542

3.99

163319

3.21

89203

3.37

I

3547

0.19

6607

0.23

9449

0.19

5739

0.22

L

49312

2.65

40909

1.41

141605

2.78

65856

2.48

K

43582

2.35

58687

2.04

146869

2.88

70549

2.66

M

16727

0.90

127070

4.39

110318

2.17

67912

2.56

F

70718

3.81

89366

3.09

179145

3.52

91702

3.46

P

104364

5.62

54939

1.91

192654

3.78

87149

3.29

S

76080

4.10

83725

2.89

173935

3.41

91160

3.44

T

937938

50.49

149259

5.17

1551585

30.46

651525

24.58

W

34533

1.86

186476

6.46

190001

3.72

108460

4.09

Total

1857593

100.00

2891786

100.00

5094175

100.00

2650888

100.00