23S rRNA Tentative Base Pair Frequencies

Last modified on 17 July 2001.

Table Window:

Tables of base pair frequency and other selected data will appear here when you select the appropriate link from the base pair list at the left.

This screen also contains general reference information for 23S rRNA. Links to this information appear at appropriate places within the base pair frequency tables and associated help files.

23S rRNA Reference Sequence: Escherichia coli.

GenBank Accession Numbers: Secondary Structure Diagrams:
U00006, J01695, D12649. (5' half; PS), (5' half; PDF), (3' half; PS), (3' half; PDF).

Alignments Used:

Code Descriptions # Sequences
T Three Phylogenetic Domains/Two Organelles 1045
3 Three Phylogenetic Domains 630
B (eu)Bacteria 326
A Archaea 41
C Chloroplasts 103
E Eucarya 263
M Mitochondria 312

The three phylogenetic domains are defined in (Woese, C. R., Kandler, O., & Wheelis, M.L. (1990) Proc. Natl. Acad. Sci. USA 87 4576-4579) as Archaea, (eu)Bacteria, and Eucarya (nuclear).