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. 1997 Dec;13(6):583-6.
doi: 10.1093/bioinformatics/13.6.583.

Displaying the information contents of structural RNA alignments: the structure logos

J Gorodkin  1 , L J Heyer, S Brunak, G D Stormo
Affiliations

Displaying the information contents of structural RNA alignments: the structure logos

J Gorodkin et al. Comput Appl Biosci. 1997 Dec.

Abstract

Motivation: We extend the standard 'Sequence Logo' method of Schneider and Stevens (Nucleic Acids Res., 18, 6097-6100, 1990) to incorporate prior frequencies on the bases, allow for gaps in the alignments, and indicate the mutual information of base-paired regions in RNA.

Results: Given an alignment of RNA sequences with the base pairings indicated, the program will calculate the information at each position, including the mutual information of the base pairs, and display the results in a 'Structure Logo'. Alignments without base pairing can also be displayed in a 'Sequence Logo', but still allowing gaps and incorporating prior frequencies if desired.

Availability: The code is available from, and an Internet server can be used to run the program at, http://www.cbs.dtu.dk/gorodkin/appl/slogo. html.

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