rne-II RNA motif
The rne-II RNA motif is a conserved RNA structure identified using bioinformatics.[1] It is detected only in species classified within the family Pseudomonadaceae, a group of gammaproteobacteria. rne-II RNAs are consistently located in the presumed 5' untranslated regions (5' UTRs) of genes that encode Ribonuclease E (RNase E). The RNase E 5' UTR element is a previously identified RNA structure that is also found in the 5' UTRs of RNase E genes. However, the latter motif is found only in enterobacteria, and the two motifs have apparently unrelated structure. In view of their differences, it was hypothesized that rne-II RNAs fulfill the same functional role as RNase E 5' UTR elements, which is to regulate the levels of RNase E proteins by acting as a substrate for RNase E. Thus, when concentrations of RNase E are high, they will degrade their own messenger RNA.
| rne-II RNA | |
|---|---|
 Consensus secondary structure of rne-II RNAs | |
| Identifiers | |
| Symbol | rne-II RNA |
| Rfam | RF01756 |
| Other data | |
| RNA type | Cis-regulatory element |
| Domain(s) | Pseudomonadaceae |
| PDB structures | PDBe |
References
- Weinberg Z, Wang JX, Bogue J, et al. (March 2010). "Comparative genomics reveals 104 candidate structured RNAs from bacteria, archaea and their metagenomes". Genome Biol. 11 (3): R31. doi:10.1186/gb-2010-11-3-r31. PMC 2864571. PMID 20230605.