The Cyano-2 RNA motif is a conserved RNA structure identified by bioinformatics.[1] Cyano-2 RNAs are found in Cyanobacterial species classified within the genus Synechococcus. Many terminal loops in the two conserved stem-loops contain the nucleotide sequence GCGA, and these sequences might in some cases form stable GNRA tetraloops. Since the two stem-loops are somewhat distant from one another it is possible that they represent two independent non-coding RNAs that are often or always co-transcribed. The region one thousand base pairs upstream of predicted Cyano-2 RNAs is usually devoid of annotated features such as RNA or protein-coding genes. This absence of annotated genes within one thousand base pairs is relatively unusual within bacteria.
| Cyano-2 RNA motif | |
|---|---|
 Consensus secondary structure of Cyano-2 RNAs | |
| Identifiers | |
| Symbol | Cyano-2 |
| Rfam | RF01702 |
| Other data | |
| RNA type | sRNA |
| Domain(s) | Synechococcus |
| PDB structures | PDBe |
See also
editReferences
edit- ^ 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.
External links
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