Chaorui Duan1,2,3, Stephen Rong4,5, Luke Buerer1,2,3

  • 1Brown Ribonucleic Acid Center, Providence, RI 02903.

概括

影响RNA拼接的遗传突变与疾病有关. 这项研究确定了关键基因中的1,733个拼接破坏突变,发现它们聚集在特定的"热点外基因中",这表明单个寡核酸治疗的潜力.

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RNA Splicing01:32

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Splicing is the process by which eukaryotic RNA is edited before its translation into protein. The RNA strand transcribed from eukaryotic DNA is called the primary transcript. The primary transcripts that become mRNAs are called precursor messenger RNAs (pre-mRNAs). Eukaryotic pre-mRNA contains alternating sequences of exons and introns. Exons are nucleotide sequences that code for proteins, whereas introns are the non-coding regions. In RNA splicing, introns are removed and exons are bonded...
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Alternative RNA Splicing02:18

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Alternative RNA splicing is the regulated splicing of exons and introns to produce different mature mRNAs from a single pre-mRNA. Unlike in constitutive splicing where a single gene produces a single type of mRNA, alternative splicing allows an organism to produce multiple proteins from a single gene and plays an important role in protein diversity.
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Exon Recombination02:32

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The evolution of new genes is critical for speciation. Exon recombination, also known as exon shuffling or domain shuffling, is an important means of new gene formation. It is observed across vertebrates, invertebrates, and in some plants such as potatoes and sunflowers. During exon recombination, exons from the same or different genes recombine and produce new exon-intron combinations, which might evolve into new genes. 
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Single Nucleotide Polymorphisms-SNPs01:05

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Pre-mRNA Processing: RNA Splicing01:36

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