Ribosomal ribonucleic acid is a type of non-coding RNA which is the primary component of ribosomes, essential to all cells.
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20 Facts About Ribosomal RNA
2.
Ribosomal RNA is transcribed from ribosomal DNA and then bound to ribosomal proteins to form small and large ribosome subunits.
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3.
The length and position of these rRibosomal RNA stem-loops allow them to create three-dimensional rRibosomal RNA structures that are similar across species.
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4.
Likewise, the 5S rRibosomal RNA contains a 108-nucleotide insertion in the ribosomes of the halophilic archaeon Halococcus morrhuae.
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5.
SSU and LSU rRibosomal RNA sequences are widely used for study of evolutionary relationships among organisms, since they are of ancient origin, are found in all known forms of life and are resistant to horizontal gene transfer.
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6.
Phylogenic information derived from the 16s rRibosomal RNA is currently used as the main method of delineation between similar prokaryotic species by calculating nucleotide similarity.
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7.
In Prokaryotes, rRibosomal RNA incorporation occurs in the cytoplasm due to the lack of membrane-bound organelles.
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8.
The rRibosomal RNA subsequently undergoes endo- and exonucleolytic processing to remove external and internal transcribed spacers.
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9.
The rRibosomal RNA complexes are then further processed by reactions involving exo- and endo-nucleolytic cleavages guided by snoRibosomal RNA in complex with proteins.
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10.
Some studies have found that extensive methylation of various rRibosomal RNA types is necessary during this time to maintain ribosome stability.
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11.
The pre-5S rRibosomal RNA enters the nucleolus for processing and assembly with 28S and 5.
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12.
Ribosomal RNA is non-coding and is never translated into proteins of any kind: rRNA is only transcribed from rDNA and then matured for use as a structural building block for ribosomes.
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13.
Synthesis of rRibosomal RNA is up-regulated and down-regulated to maintain homeostasis by a variety of processes and interactions:.
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14.
Similar to eukaryotes, the production of rRibosomal RNA is the rate-limiting step in the prokaryotic synthesis of a ribosome.
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15.
An increased rRibosomal RNA concentration serves as a negative feedback mechanism to ribosome synthesis.
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16.
Ribosomal RNA is quite stable in comparison to other common types of RNA and persists for longer periods of time in a healthy cellular environment.
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17.
Many differences were found between eukaryotic and prokaryotic rRibosomal RNA degradation, leading researchers to believe that the two degrade using different pathways.
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18.
Ribosomal RNA genes have been found to be tolerant to modification and incursion.
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19.
When rRibosomal RNA sequencing is altered, cells have been found to become compromised and quickly cease normal function.
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20.
Ribosomal RNA characteristics are important in evolution, thus taxonomy and medicine.
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