| Literature DB >> 22588715 |
Katherine C Goldfarb1, Sumit Borah, Thomas R Cech.
Abstract
RNase P is the enzyme that removes 5' leader sequences from precursor tRNAs. Remarkably, in most organisms, RNase P is a ribonucleoprotein particle where the RNA component is responsible for catalysis. In this issue of Genes & Development, Gutmann and colleagues (pp. 1022-1027) report the first organism, Arabidopsis thaliana, to employ protein-only RNase P in both its nucleus and organelles. An intriguing possibility is that replacement of RNase P ribonucleoprotein particles (RNPs) by proteins may have been triggered by the acquisition of organelles.Entities:
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Year: 2012 PMID: 22588715 PMCID: PMC3360556 DOI: 10.1101/gad.193581.112
Source DB: PubMed Journal: Genes Dev ISSN: 0890-9369 Impact factor: 11.361