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 …

Reverse transcriptases (RTs) catalyze the polymerization of DNA from an RNA template.
These enzymes were first discovered in RNA tumor viruses in 1970, but it was not until 1989 …

Group II introns are both catalytic RNAs (ribozymes) and mobile retroelements that were
discovered almost 14 years ago. It has been suggested that eukaryotic mRNA introns might …

The bacterial transposon Tn7 maintains two distinct lifestyles, one in horizontally transferred
DNA and the other in bacterial chromosomes. Access to these two DNA pools is mediated …

The streamlined genomes of ancient obligate endosymbionts generally lack transposable
elements, as a consequence of their intracellular confinement. Yet, the genomes of …

Isolates of the symbiotic nitrogen-fixing species Sinorhizobium meliloti usually contain a
chromosome and two large megaplasmids encoding functions that are absolutely required …

Group II introns are ancient retroelements that significantly shaped the origin and evolution
of contemporary eukaryotic genomes. These self-splicing ribozymes share a common …

Function of bacterial small non-coding RNAs (sRNAs) and overall RNA metabolism is
largely shaped by a vast diversity of RNA-protein interactions. However, in non-model …

Mobile group II introns are ribozymes and retroelements that probably originate from
bacteria. Sinorhizobium meliloti, the nitrogen-fixing endosymbiont of legumes of genus …

Group II introns act as both large catalytic RNAs and mobile retroelements. They are found
in organelle and bacterial genomes and are spliced via a lariat intermediate, in a …