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2017 ; 14
(2
): 201-207
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RESA identifies mRNA-regulatory sequences at high resolution
#MMPMID28024160
Yartseva V
; Takacs CM
; Vejnar CE
; Lee MT
; Giraldez AJ
Nat Methods
2017[Feb]; 14
(2
): 201-207
PMID28024160
show ga
Gene expression is extensively regulated at the levels of mRNA stability,
localization and translation. However, decoding functional RNA-regulatory
features remains a limitation to understanding post-transcriptional regulation in
vivo. Here, we developed RNA-element selection assay (RESA), a method that
selects RNA elements on the basis of their activity in vivo and uses
high-throughput sequencing to provide a quantitative measurement of their
regulatory functions at near-nucleotide resolution. We implemented RESA to
identify sequence elements modulating mRNA stability during zebrafish
embryogenesis. RESA provides a sensitive and quantitative measure of microRNA
activity in vivo and also identifies novel regulatory sequences. To uncover
specific sequence requirements within regulatory elements, we developed a
bisulfite-mediated nucleotide-conversion strategy for large-scale mutational
analysis (RESA-bisulfite). Finally, we used the versatile RESA platform to map
candidate protein-RNA interactions in vivo (RESA-CLIP).