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RNA. 2008 Aug;14(8):1558-67. doi: 10.1261/rna.1106408. Epub 2008 Jun 25.

Footprinting analysis demonstrates extensive similarity between eukaryotic RNase P and RNase MRP holoenzymes.

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  • 1Department of Biochemistry and Molecular Biology, The Pennsylvania State University, University Park, Pennsylvania 16802, USA.

Abstract

Eukaryotic ribonuclease (RNase) P and RNase MRP are evolutionary related RNA-based enzymes involved in metabolism of various RNA molecules, including tRNA and rRNA. In contrast to the closely related eubacterial RNase P, which is comprised of an RNA component and a single small protein, these enzymes contain multiple protein components. Here we report the results of footprinting studies performed on purified Saccharomyces cerevisiae RNase MRP and RNase P holoenzymes. The results identify regions of the RNA components affected by the protein moiety, suggest a role of the proteins in stabilization of the RNA fold, and point to substantial similarities between the two evolutionary related RNA-based enzymes.

PMID:
18579867
[PubMed - indexed for MEDLINE]
PMCID:
PMC2491465
Free PMC Article

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