The Chlorobi-1 RNA motif is a conserved
RNA
Ribonucleic acid (RNA) is a polymeric molecule essential in various biological roles in coding, decoding, regulation and expression of genes. RNA and deoxyribonucleic acid ( DNA) are nucleic acids. Along with lipids, proteins, and carbohydra ...
secondary structure identified by
bioinformatics
Bioinformatics () is an interdisciplinary field that develops methods and software tools for understanding biological data, in particular when the data sets are large and complex. As an interdisciplinary field of science, bioinformatics combi ...
.
It is predicted to be used only by
Chlorobiota
The green sulfur bacteria are a phylum of obligately anaerobic photoautotrophic bacteria that metabolize sulfur.
Green sulfur bacteria are nonmotile (except ''Chloroherpeton thalassium'', which may glide) and capable of anoxygenic photosynthes ...
(formerly Chlorobi), a
phylum
In biology, a phylum (; plural: phyla) is a level of classification or taxonomic rank below kingdom and above class. Traditionally, in botany the term division has been used instead of phylum, although the International Code of Nomenclature f ...
of
bacteria
Bacteria (; singular: bacterium) are ubiquitous, mostly free-living organisms often consisting of one biological cell. They constitute a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria were among ...
. The motif consists of two
stem-loop
Stem-loop intramolecular base pairing is a pattern that can occur in single-stranded RNA. The structure is also known as a hairpin or hairpin loop. It occurs when two regions of the same strand, usually complementary in nucleotide sequence when ...
s that are followed by an apparent
rho-independent transcription terminator. The motif is presumed to function as an independently transcribed
non-coding RNA.
A number of other RNAs were identified in the same study, including:
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Bacteroidales-1 RNA motif
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CrcB RNA Motif
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Gut-1 RNA motif
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JUMPstart RNA motif
The JUMPstart RNA motif describes a conserved RNA-based secondary structure associated with JUMPstart elements. The 39-base-pair JUMPstart sequence describes a conserved element upstream of genes that participate in polysaccharide synthesis. The ...
*
Lactis-plasmid RNA motif
The ''lactis''-plasmid RNA motif is a conserved RNA structure identified by bioinformatics. The RNAs are restricted to lactic acid bacteria, and are especially common in '' Lactococcus lactis''. They typically lie near to ''repB'' genes, and ...
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Lacto-usp RNA motif
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MraW RNA motif
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Ocean-V RNA motif
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PsaA RNA motif
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Pseudomon-Rho RNA motif
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Rne-II RNA motif
References
External links
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Non-coding RNA
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