A Small RNA-Based Immune System Defends Germ Cells against Mobile Genetic Elements
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چکیده
منابع مشابه
A Small RNA-Based Immune System Defends Germ Cells against Mobile Genetic Elements
Transposons are mobile genetic elements that threaten the survival of species by destabilizing the germline genomes. Limiting the spread of these selfish elements is imperative. Germ cells employ specialized small regulatory RNA pathways to restrain transposon activity. PIWI proteins and Piwi-interacting RNAs (piRNAs) silence transposons at the transcriptional and posttranscriptional level with...
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The CRISPR/Cas system in prokaryotes provides resistance against invading viruses and plasmids. Three distinct stages in the mechanism can be recognized. Initially, fragments of invader DNA are integrated as new spacers into the repetitive CRISPR locus. Subsequently, the CRISPR is transcribed and the transcript is cleaved by a Cas protein within the repeats, generating short RNAs (crRNAs) that ...
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ژورنال
عنوان ژورنال: Stem Cells International
سال: 2016
ISSN: 1687-966X,1687-9678
DOI: 10.1155/2016/7595791