Long-range structure in ribonuclease P RNA.
Phylogenetic-comparative and mutational analyses were used to elucidate the structure of the catalytically active RNA component of eubacterial ribonuclease P (RNase P). In addition to the refinement and extension of known structural elements, the analyses revealed a long-range interaction that results in a second pseudoknot in the RNA. This feature strongly constrains the three-dimensional structure of RNase P RNA near the active site. Some RNase P RNAs lack this structure but contain a unique, possibly compensating, structural domain. This suggests that different RNA structures located at different positions in the sequence may have equivalent architectural functions in RNase P RNA.[1]References
- Long-range structure in ribonuclease P RNA. Haas, E.S., Morse, D.P., Brown, J.W., Schmidt, F.J., Pace, N.R. Science (1991) [Pubmed]
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