RNA interference is a process in which translation of some of a cell's messenger RNA (mRNA) sequences is prevented, because of the presence of (and consequent destruction of) matching double-stranded RNA sequences. RNA interference is believed...

RNA interference (RNAi) is a mechanism that inhibits gene expression by causing the degradation of specific RNA molecules or hindering the transcription of specific genes. The targets are often RNA from viruses and transposons (probably a form of innate...

Banking on RNAi's promise, academic and private researchers flock to the field RNA interference, or RNAi, is all the rage these days. According to the Web of Science database (ISI, Philadelphia), the number of articles on the topic jumped from nine in 1998...

INSIGHT Centromeres evolve rapidly and display a remarkable lack of sequence conservation (Henikoff et al., 2001). They can be small (125 bp in Saccharomyces cerevisiae) or large (9 million bp in maize) and show a relatively ordered arrangement of long repeats (Schizosaccharomyces pombe)...

The AIDS virus has to hijack human proteins to do its damage, but scientists until now have known only a few dozen of its targets. On Thursday, Harvard researchers unveiled a surprisingly longer list, an important first step in the hunt for new drugs.HIV is...

American scientists who discovered an enzyme that broke new ground in research on cancer and aging are among potential candidates for the Nobel Prize in medicine, the first of six prestigious awards to be announced by the Nobel committees.Another possible winner of Monday's $1.54 million...