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Principles and Correction of 5'-splice Site Selection

Overview
Journal RNA Biol
Specialty Molecular Biology
Date 2022 Jul 22
PMID 35866748
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Abstract

In Eukarya, immature mRNA transcripts (pre-mRNA) often contain coding sequences, or exons, interleaved by non-coding sequences, or introns. Introns are removed upon , and further regulation of the retained exons leads to alternatively spliced mRNA. The reaction requires the stepwise assembly of the spliceosome, a macromolecular machine composed of small nuclear ribonucleoproteins (snRNPs). This review focuses on the early stage of spliceosome assembly, when U1 snRNP defines each intron 5'-splice site (5'ss) in the pre-mRNA. We first introduce the splicing reaction and the impact of alternative splicing on gene expression regulation. Thereafter, we extensively discuss splicing descriptors that influence the 5'ss selection by U1 snRNP, such as sequence determinants, and interactions mediated by U1-specific proteins or U1 small nuclear RNA (U1 snRNA). We also include examples of diseases that affect the 5'ss selection by U1 snRNP, and discuss recent therapeutic advances that manipulate U1 snRNP 5'ss selectivity with antisense oligonucleotides and small-molecule splicing switches.

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References
1.
Porensky P, Mitrpant C, McGovern V, Bevan A, Foust K, Kaspar B . A single administration of morpholino antisense oligomer rescues spinal muscular atrophy in mouse. Hum Mol Genet. 2011; 21(7):1625-38. PMC: 3298284. DOI: 10.1093/hmg/ddr600. View

2.
Zhang S, Aibara S, Vos S, Agafonov D, Luhrmann R, Cramer P . Structure of a transcribing RNA polymerase II-U1 snRNP complex. Science. 2021; 371(6526):305-309. DOI: 10.1126/science.abf1870. View

3.
Meijboom K, Wood M, McClorey G . Splice-Switching Therapy for Spinal Muscular Atrophy. Genes (Basel). 2017; 8(6). PMC: 5485525. DOI: 10.3390/genes8060161. View

4.
Brosius J, Raabe C . What is an RNA? A top layer for RNA classification. RNA Biol. 2016; 13(2):140-4. PMC: 4829331. DOI: 10.1080/15476286.2015.1128064. View

5.
Cho S, Hoang A, Sinha R, Zhong X, Fu X, Krainer A . Interaction between the RNA binding domains of Ser-Arg splicing factor 1 and U1-70K snRNP protein determines early spliceosome assembly. Proc Natl Acad Sci U S A. 2011; 108(20):8233-8. PMC: 3100968. DOI: 10.1073/pnas.1017700108. View