EIF2C2

(redirected from AGO2)

EIF2C2

A gene on chromosome 8q24 that encodes a protein required for RNA-mediated gene silencing by the RNA-induced silencing complex (RISC), binding to short RNAs, such as microRNAs or short interfering RNAs, and represseing the translation of mRNAs complementary to them. EIF2C2 lacks endonuclease activity and does not appear to cleave target mRNAs. It is required for transcriptional gene silencing of promoter regions which are complementary to bound short anti-gene RNA through inhibition of translation, independent of endonuclease activity.
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These derived from viral dsRNA replication-intermediates, incorporated into AGO2, were eliminated in Dcr knockout cells, and decreased in abundance upon cell differentiation.
Moreover, seven SNPs in the 5 genes (DNMT3L, AGO1, AGO2, HDAC5, and PRKAG3) were non-significantly associated with all of the beef carcass and quality traits in the Snow Dragon beef population.
AGO2, GEMIN3, and GEMIN4 then interact with miRNA to form a ribonucleoprotein, which guides the miRNA into the RNA-induced silencing complex (RISC), where the miRNA strand anneals to the 3' untranslated regions (UTRs) of target mRNAs, promoting translational repression or mRNA degradation.