Word: rna
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
...guts of CCD-afflicted bees, the microarray analysis showed unusual fragments of ribosomal RNA. Ribosomes are essentially the protein factories inside cells - they're vital to the health of the cell itself and the larger organism. Berenbaum believes that the presence of those genetic fragments inside the CCD-afflicted bees indicates that they may be under attack by a number of insect viruses - including deformed wing virus and Israeli acute paralysis virus - that damage the ribosomes. "It was the one factor that remained consistently associated with the CCD bees we tested, no matter where they came from or how severe...
...next step, researchers said, is to create a ribosome that will be completely synthetic, without the use of bacterial RNA and other protein additives...
...active and dormant bacteria to prevent relapse - something that few existing antibiotics have been able to do. One way to kill a dormant cell is to target biochemical processes that continue even in latency - there aren't many of those. But myxopyronin works by interfering with the enzyme RNA polymerase, which controls gene transcription in cells and is necessary for cell survival, dormant...
Rifamycins, the main drugs currently used to treat tuberculosis, attack the same RNA polymerase target, but at a different site. That means the old drugs and the new drugs "should not have cross-resistance," says Ma. Any new drugs will work against bacteria that have developed resistance to current drugs, but won't interfere with the way the current drugs work...
Previously, Ruvkun added, the smallest RNA known to be of importance in cells consisted of 75 nucleotide building blocks. The miRNA they worked with was composed of 22 nucleotides...