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Table 3b Summary of the Evolution of the Noller-Woese-Gutell 23S rRNA Comparative Structure Model. Categories marked with "*" are calculated compared to the 1999 version of the 23S rRNA model.

From: The Comparative RNA Web (CRW) Site: an online database of comparative sequence and structure information for ribosomal, intron, and other RNAs

Date of Model

1981

1984

1988–90

1992–96

Current (1997–2000)

1. Approximate # Complete Sequences

2

15

55

220

1050

2.% of 1999 Sequences

0.2

1.4

5.2

21.0

100

3. # BP Proposed Correctly *

676

692

794

836

870

4. # BP Proposed Incorrectly *

102

93

69

26

0

5. Total BP in Model (#3 + #4)

778

785

863

862

870

6. % of 1999 Model Proposed Correctly (#3 / 870) *

77.7

79.5

91.3

96.1

100

7. Accuracy of Proposed BP (#3 / #5)

86.9

88.2

92.0

97.0

100

8. # BP in Current Model Missing from This Model (870 - #3) *

194

178

76

34

0

9. # Tertiary BP Proposed Correctly *

4

3

29

49

65

10. % Tertiary BP Proposed Correctly *

6.2

4.6

44.6

75.4

100

11. # Base Triples Proposed Correctly *

0

0

0

2

7

12. % Base Triples Proposed Correctly *

0

0

0

28.6

100