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Construction of a Full-Length 3'UTR Reporter System for Identification of Cell-Cycle Regulating MicroRNAs

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Specialty Molecular Biology
Date 2021 Jun 4
PMID 34085217
Citations 2
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Abstract

Three prime untranslated region (3'UTR) reporter constructs are widely used by the scientific community to functionally link microRNAs (miRNAs) to suppression of mRNA expression. However, full-length 3'UTR vectors are rarely employed due to labor-intensive cloning work. Instead, 3'UTR fragments containing putative miRNA binding sites are commonly utilized to mechanistically validate miRNAs. Assaying truncated 3'UTRs may falsely validate miRNAs due to altered positioning of binding sites in respect to 3'UTR length and RNA secondary structure. Here we present a detailed protocol for the construction of full-length 3'UTR luciferase reporter constructs that was used to unveil miRNAs regulating multiple cell-cycle factors.

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