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Table 2 Statistics on the complexity of pseudoknots in RNA STRAND v2.0.

From: RNA STRAND: The RNA Secondary Structure and Statistical Analysis Database

RNA type

#

Stem length

# PKBP

 

entries

median

mean

std

median

mean

std

16S ribosomal RNA

644

4.00

4.30

2.50

3.00

2.50

0.68

23S ribosomal RNA

93

4.00

4.14

2.39

2.00

3.75

3.12

Transfer messenger RNA

657

4.00

4.11

2.24

5.00

5.51

1.00

Ribonuclease P RNA

433

4.00

4.45

2.51

4.00

5.18

1.36

All, non-redundant

4104

4.00

4.35

2.44

4.00

4.14

1.86

All, non-redundant & normalised

4104

4.96

5.05

0.58

4.65

4.95

1.78

  1. The columns represent the RNA type, the number of entries for each type, the median, mean and standard deviation of the stem length (i.e., number of adjacent base pairs) and the minimum number of base pairs to break in order to open pseudoknots (# PKBP). For each row, a non-redundant set was selected, and outliers were removed.