Group II introns: mobile ribozymes that invade DNA

AM Lambowitz, S Zimmerly - Cold Spring Harbor …, 2011 - cshperspectives.cshlp.org
Group II introns are mobile ribozymes that self-splice from precursor RNAs to yield excised
intron lariat RNAs, which then invade new genomic DNA sites by reverse splicing. The …

The chemical repertoire of natural ribozymes

JA Doudna, TR Cech - Nature, 2002 - nature.com
Although RNA is generally thought to be a passive genetic blueprint, some RNA molecules,
called ribozymes, have intrinsic enzyme-like activity—they can catalyse chemical reactions …

RNA catalyses nuclear pre-mRNA splicing

SM Fica, N Tuttle, T Novak, NS Li, J Lu, P Koodathingal… - Nature, 2013 - nature.com
In nuclear pre-messenger RNA splicing, introns are excised by the spliceosome, a dynamic
machine composed of both proteins and small nuclear RNAs (snRNAs). Over thirty years …

Crystal structure of a self-spliced group II intron

N Toor, KS Keating, SD Taylor, AM Pyle - Science, 2008 - science.org
Group II introns are self-splicing ribozymes that catalyze their own excision from precursor
transcripts and insertion into new genetic locations. Here we report the crystal structure of an …

Evolution of group II introns

S Zimmerly, C Semper - Mobile DNA, 2015 - Springer
Present in the genomes of bacteria and eukaryotic organelles, group II introns are an
ancient class of ribozymes and retroelements that are believed to have been the ancestors …

Mobile bacterial group II introns at the crux of eukaryotic evolution

AM Lambowitz, M Belfort - Mobile DNA III, 2015 - Wiley Online Library
Group II introns are remarkable mobile retroelements that use the combined activities of an
autocatalytic RNA and an intron‐encoded reverse transcriptase (RT) to propagate efficiently …

Visualizing group II intron catalysis through the stages of splicing

M Marcia, AM Pyle - Cell, 2012 - cell.com
Group II introns are self-splicing ribozymes that share a reaction mechanism and a common
ancestor with the eukaryotic spliceosome, thereby providing a model system for …

Unraveling the structure and biological functions of RNA triple helices

JA Brown - Wiley Interdisciplinary Reviews: RNA, 2020 - Wiley Online Library
It has been nearly 63 years since the first characterization of an RNA triple helix in vitro by
Gary Felsenfeld, David Davies, and Alexander Rich. An RNA triple helix consists of three …

Group II intron self-splicing

AM Pyle - Annual Review of Biophysics, 2016 - annualreviews.org
Group II introns are large, autocatalytic ribozymes that catalyze RNA splicing and
retrotransposition. Splicing by group II introns plays a major role in the metabolism of plants …

From nucleotides to ribozymes—a comparison of their metal ion binding properties

E Freisinger, RKO Sigel - Coordination Chemistry Reviews, 2007 - Elsevier
It is undisputable that the fates of metal ions and nucleic acids are inescapably interwoven.
Metal ions are essential for charge compensation of the negatively charged phosphate …