RasiRNA
RasiRNA
RasiRNA (pronounced: rah-see-RNA, /rɑːsiːɑːrɛnɛɪ/), also known as Repeat Associated Small Interfering RNA, is a type of small interfering RNA that is associated with the silencing of repetitive DNA sequences. The term "RasiRNA" is derived from the phrase "Repeat Associated Small Interfering RNA".
Etymology
The term "RasiRNA" is a combination of the words "Repeat", "Associated", "Small", and "Interfering RNA". The term was coined to describe the specific function of this type of RNA in silencing repetitive DNA sequences.
Function
RasiRNAs are involved in the process of RNA interference, a biological process where RNA molecules inhibit gene expression. They are particularly involved in the silencing of repetitive DNA sequences, such as transposons, which can cause damage to the genome if left unchecked. RasiRNAs work by guiding the RNA-induced silencing complex (RISC) to these repetitive sequences, leading to their degradation and preventing them from being transcribed into protein.
Related Terms
- RNA interference: A biological process where RNA molecules inhibit gene expression.
- Small interfering RNA: A class of double-stranded RNA molecules, typically 20-25 base pairs in length, that are involved in the RNA interference pathway.
- Transposon: A DNA sequence that can change its position within the genome, potentially causing mutations and altering the cell's genetic identity.
External links
- Medical encyclopedia article on RasiRNA
- Wikipedia's article - RasiRNA
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