Allelic imbalance sequencing reveals that single-nucleotide polymorphisms frequently alter microRNA-directed repression

ABSTRACT: Genetic changes that help explain the differences between two individuals might create or disrupt sites complementary to microRNAs (miRNAs), but the extent to which such polymorphic sites influence miRNA-mediated repression is unknown. Here, we describe a method to measure mRNA allelic imbalances associated with a regulatory site found in mRNA transcribed from one allele but not found in that transcribed from the other. Applying this method, called allelic imbalance sequencing, to sites for three miRNAs (miR-1, miR-133 and miR-122) provided quantitative measurements of repression in vivo without altering either the miRNAs or their targets. A substantial fraction of polymorphic sites mediated repression in tissues that expressed the cognate miRNA, and downregulation was correlated with site

ORGANISM(S): Mus musculus

SUBMITTER: Jinkuk Kim 

PROVIDER: E-GEOD-15675 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress