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Table 1 Sample of the Mean (M), Standard Deviation (SD) in Angstroms and Frequency (F).

From: Tripeptide analysis of protein structures

 

R1R2 distances

R1R2R3

(α1,α2)

(α1,β2)

(β1,α2)

(β1,β2)

 

M

SD

F

M

SD

F

M

SD

F

M

SD

F

AAA

3.80

0.02

292

4.82

0.10

291

4.50

0.10

291

5.37

0.18

291

AAC

3.80

0.03

37

4.81

0.12

37

4.51

0.12

37

5.39

0.23

37

AAD

3.80

0.02

123

4.79

0.11

122

4.55

0.15

123

5.43

0.25

122

AAE

3.80

0.02

138

4.81

0.11

138

4.50

0.10

138

5.38

0.21

138

  1. Only the R1R2 set for four tripeptides is shown here. Similar data for R1R2, R1R3 and R2R3 for 7964 tripeptides is available at http://www.au-kbc.org/research_areas/bio/projects/protein/tri.html