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Table 5 Protein lengths and amino acid frequencies (one letter code) for nine in the nine databases, length – average protein length in database, reference – database reference; f i – amino acid frequencies

From: Analytical model of peptide mass cluster centres with applications

Organ izm

length

f F

f S

f T

f N

f K

f Y

f E

f V

f Q

f M

Arabidopsis t.

422.40

4.27

9.01

5.11

4.41

6.36

2.86

6.74

6.69

3.52

2.44

Drosophila m.

506.20

3.48

8.33

5.68

4.80

5.70

2.91

6.41

5.88

5.21

2.33

Escherichia coli

300.30

3.86

6.25

5.67

4.26

4.59

2.96

5.65

6.91

4.40

2.67

Homo sapiens

360.40

3.61

8.61

5.55

3.55

5.54

2.86

6.81

6.02

4.80

2.12

Mus musculus

378.30

3.74

8.58

5.55

3.59

5.71

2.88

6.75

6.11

4.74

2.22

Rattus norvegicus

484.40

3.81

8.33

5.52

3.59

5.62

2.74

6.77

6.32

4.64

2.28

Saccharomyces c.

447.00

4.47

9.02

5.93

6.18

7.26

3.41

6.43

5.58

3.94

2.10

Rhodopirellula b.

314.70

3.70

7.37

5.85

3.37

3.44

2.09

6.02

7.05

4.04

2.43

SwissProt DB

367.90

4.03

6.89

5.47

4.22

5.93

3.09

6.59

6.70

3.93

2.38

Mean

397.96

3.89

8.04

5.59

4.22

5.57

2.87

6.46

6.36

4.36

2.33

SD

71.90

0.32

0.98

0.24

0.88

1.07

0.35

0.39

0.50

0.54

0.18

Min

300.30

3.48

6.25

5.11

3.37

3.44

2.09

5.65

5.58

3.52

2.10

Max

506.20

4.47

9.02

5.93

6.18

7.26

3.41

6.81

7.05

5.21

2.67

 

reference

f C

f L

f A

f W

f P

f H

f D

f R

f I

f G

Arabidopsis t.

[34]

1.80

9.52

6.36

1.26

4.80

2.28

5.43

5.39

5.34

6.41

Drosophila m.

[34]

1.95

9.02

7.36

1.00

5.46

2.64

5.18

5.53

4.96

6.17

Escherichia coli

[34]

1.17

10.23

9.27

1.50

4.32

2.22

5.21

5.54

5.94

7.38

Homo sapiens

[34]

2.24

9.78

6.98

1.35

6.22

2.51

4.73

5.64

4.28

6.80

Mus musculus

[34]

2.29

9.92

6.86

1.29

6.03

2.57

4.76

5.51

4.38

6.54

Rattus norvegicus

[34]

2.29

10.07

6.88

1.25

5.97

2.58

4.77

5.59

4.51

6.49

Saccharomyces c.

[34]

1.30

9.52

5.51

1.04

4.39

2.18

5.76

4.41

6.58

5.00

Rhodopirellula b.

[37]

1.27

9.31

9.25

1.54

5.33

2.31

6.23

6.96

4.95

7.48

SwissProt

[27]

1.57

9.63

7.80

1.17

4.86

2.27

5.30

5.29

5.92

6.94

Mean

 

1.76

9.67

7.36

1.27

5.26

2.40

5.26

5.54

5.21

6.58

SD

 

0.45

0.38

1.25

0.18

0.71

0.18

0.50

0.65

0.80

0.74

Min

 

1.17

9.02

5.51

1.00

4.32

2.18

4.73

4.41

4.28

5.00

Max

 

2.29

10.23

9.27

1.54

6.22

2.64

6.23

6.96

6.58

7.48

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