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Table 4 Statistics of trees of RPR substructures (*)

From: The ancient history of the structure of ribonuclease P and the early origins of Archaea

Matrix

No. of trees

Tree length

CI

RI

RC

g1

S domain

      

   stems

1

10,118

0.95

0.80

0.76

-2.44

   hairpins

1

1,182

0.84

0.80

0.67

-0.87

   bulges

2

785

0.89/0.88

0.58

0.51

-1.04

   unpaired

1

2,465

0.77/0.77

0.75

0.58

-2.34

C domain

      

   stems

2

11,293

0.85

0.77

0.65

-0.65

   hairpins

1

1,289

0.67

0.65

0.44

-0.76

   bulges

12

501

0.86/0.79

0.53

0.46

-2.72

   unpaired

9

3,574

0.43

0.61

0.26

-0.52

Combined

      

   stems

2

12,121

0.79

0.77

0.61

-0.76

   hairpins

1

1,949

0.59

0.77

0.45

-0.56

   bulges

109

1,168

0.78/0.77

0.55

0.42

-1.88

   unpaired

8

5,277

0.37

0.63

0.24

-0.72

  1. (*) - Trees were derived from data matrices partitioned according to structural domains and complete data matrices. CI, consistency index (with and without uninformative characters are given in tandem); RI, retention index; RC, rescaled consistency index.