The ancient history of the structure of ribonuclease P and the early origins of Archaea |
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| Authors: | Feng-Jie Sun Gustavo Caetano-Anollés |
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| Affiliation: | (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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| Abstract: | Background Ribonuclease P is an ancient endonuclease that cleaves precursor tRNA and generally consists of a catalytic RNA subunit (RPR) and one or more proteins (RPPs). It represents an important macromolecular complex and model system that is universally distributed in life. Its putative origins have inspired fundamental hypotheses, including the proposal of an ancient RNA world. |
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