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Open Access Highly Accessed Research article

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

Feng-Jie Sun123 and Gustavo Caetano-Anollés1*

Author Affiliations

1 Evolutionary Bioinformatics Laboratory, Department of Crop Sciences, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA

2 Laboratory of Molecular Epigenetics of the Ministry of Education, School of Life Sciences, Northeast Normal University, Changchun 130024, Jilin Province, PR China

3 W.M. Keck Center for Comparative and Functional Genomics, Roy J. Carver Biotechnology Center, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA

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BMC Bioinformatics 2010, 11:153  doi:10.1186/1471-2105-11-153

Published: 24 March 2010

Additional files

Additional file 1:

Figure S1 Phylogenetic trees of RPR molecules derived from the C domain. Figure S2 Phylogenetic trees of RPR molecules derived from the S domain. Figure S3 Phylogenetic trees of RPR molecules derived from a conserved substructural core. Figure S4 Phylogenetic trees of RPR molecules derived from a conserved substructural core. Figure S5 Phylogenetic trees of stem substructures derived from the C and S domains of the RPR molecule. Figure S6 Cumulative frequency distribution plot of molecular substructures. Table S1 Structural characters and their statistics (range and mean ± standard deviation) used in phylogenetic analyses. Table S2 Data matrix of structural characters used in the cladistic analyses for RPR molecules.

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