84-4015-91　Protein argonaute-2 (FITC) 50ug　330825

特徴

• Required for RNA-mediated gene silencing (RNAi) by the RNA-induced silencing complex (RISC).
• The minimal RISC appears to include AGO2 bound to a short guide RNA such as a microRNA (miRNA) or short interfering RNA (siRNA).
• These guide RNAs direct RISC to complementary mRNAs that are targets for RISC-mediated gene silencing.
• The precise mechanism of gene silencing depends on the degree of complementarity between the miRNA or siRNA and its target.
• Binding of RISC to a perfectly complementary mRNA generally results in silencing due to endonucleolytic cleavage of the mRNA specifically by AGO2.
• Binding of RISC to a partially complementary mRNA results in silencing through inhibition of translation, and this is independent of endonuclease activity.
• May inhibit translation initiation by binding to the 7-methylguanosine cap, thereby preventing the recruitment of the translation initiation factor eIF4-E.
• May also inhibit translation initiation via interaction with EIF6, which itself binds to the 60S ribosomal subunit and prevents its association with the 40S ribosomal subunit.
• The inhibition of translational initiation leads to the accumulation of the affected mRNA in cytoplasmic processing bodies (P-bodies), where mRNA degradation may subsequently occur.
• In some cases RISC-mediated translational repression is also observed for miRNAs that perfectly match the 3' untranslated region (3-UTR).
• Can also up-regulate the translation of specific mRNAs under certain growth conditions.
• Binds to the AU element of the 3-UTR of the TNF (TNF-alpha) mRNA and up-regulates translation under conditions of serum starvation.
• Also required for transcriptional gene silencing (TGS), in which short RNAs known as antigene RNAs or agRNAs direct the transcriptional repression of complementary promoter regions.
• Applications:Suitable for use in ELISA and Immunohistochemistry.
• Other applications not tested.
• Recommended Dilution:Optimal dilutions to be determined by the researcher.
• Storage and StabilityStore product at 4°C if to be used immediately within two weeks.
• For long-term storage, aliquot to avoid repeated freezing and thawing and store at -20°C.
• Aliquots are stable at -20°C for 12 months after receipt.
• Dilute required amount only prior to immediate use.
• Further dilutions can be made in assay buffer.
• Caution: FITC conjugates are sensitive to light.
• For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.