Modulation of PDCD1 exon 3 splicing
نویسندگان
چکیده
منابع مشابه
Dichotomous splicing signals in exon flanks.
Intronic elements flanking the splice-site consensus sequences are thought to play a role in pre-mRNA splicing. However, the generality of this role, the catalog of effective sequences, and the mechanisms involved are still lacking. Using molecular genetic tests, we first showed that the approximately 50-nt intronic flanking sequences of exons beyond the splice-site consensus are generally impo...
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The polypyrimidine tract binding protein (PTB) has been described as a global repressor of regulated exons. To investigate PTB functions in a physiological context, we used a combination of morpholino-mediated knockdown and transgenic overexpression strategies in Xenopus laevis embryos. We show that embryonic endoderm and skin deficient in PTB displayed a switch of the alpha-tropomyosin pre-mRN...
متن کاملMBNL1 and PTB cooperate to repress splicing of Tpm1 exon 3
Exon 3 of the rat α-tropomyosin (Tpm1) gene is repressed in smooth muscle cells, allowing inclusion of the mutually exclusive partner exon 2. Two key types of elements affect repression of exon 3 splicing: binding sites for polypyrimidine tract-binding protein (PTB) and additional negative regulatory elements consisting of clusters of UGC or CUG motifs. Here, we show that the UGC clusters are b...
متن کاملPresence of exon splicing silencers within human immunodeficiency virus type 1 tat exon 2 and tat-rev exon 3: evidence for inhibition mediated by cellular factors.
Human immunodeficiency virus type 1 (HIV-1) pre-mRNA splicing is regulated in order to maintain pools of unspliced and partially spliced viral RNAs as well as the appropriate levels of multiply spliced mRNAs during virus infection. We have previously described an element in tat exon 2 that negatively regulates splicing at the upstream tat 3' splice site 3 (B. A. Amendt, D. Hesslein, L.-J. Chang...
متن کاملInverse splicing of a group II intron ( ribozyme / drcular RNA / exon scrambling / exon shuflting ) KEVIN
I describe the self-splicing of an RNA that consists of exon sequences flanked by group II intron sequences. I find that this RNA undergoes accurate splicing in vitro, yielding an excised exon circle. This splicing reaction involves the joining of the 5' splice site at the end of an exon to the 3' splice site at the b nning of the same exon; thus, I term it inverse splicing. Inverse splicing pr...
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ژورنال
عنوان ژورنال: RNA Biology
سال: 2019
ISSN: 1547-6286,1555-8584
DOI: 10.1080/15476286.2019.1659080