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Rüdel, S.* ; Flatley, A. ; Weinmann, L.* ; Kremmer, E. ; Meister, G.*

A multifunctional human Argonaute2-specific monoclonal antibody.

RNA 14, 1244-1253 (2008)
DOI
Open Access Gold möglich sobald Verlagsversion bei der ZB eingereicht worden ist.
Small regulatory RNAs including small interfering RNAs (siRNAs), microRNAs (miRNAs), or Piwi interacting RNAs (piRNAs) guide regulation of gene expression in many different organisms. The Argonaute (Ago) protein family constitutes the cellular binding partners of such small RNAs and regulates gene expression on the levels of transcription, mRNA stability, or translation. Due to the lack of highly specific and potent monoclonal antibodies directed against the different Ago proteins, biochemical analyses such as Ago complex purification and characterization rely on overexpression of tagged Ago proteins. Here, we report the generation and functional characterization of a highly specific monoclonal anti-Ago2 antibody termed anti-Ago2(11A9). We show that anti-Ago2(11A9) is specific for human Ago2 and detects Ago2 in Western blots as well as in immunoprecipitation experiments. We further demonstrate that Ago2 can be efficiently eluted from our antibody by a competing peptide. Finally, we show that anti-Ago2(11A9) recognizes Ago2 in immunofluorescence experiments, and we find that Ago2 not only localizes to cytoplasmic processing bodies (P-bodies) and the diffuse cytoplasm but also to the nucleus. With the anti-Ago2(11A9) antibody we have generated a potent tool that is useful for many biochemical or cell biological applications.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Argonaute proteins; microRNAs; RISC; RNAi; gene silencing
Sprache englisch
Veröffentlichungsjahr 2008
HGF-Berichtsjahr 2008
ISSN (print) / ISBN 1355-8382
e-ISSN 1469-9001
Zeitschrift RNA
Quellenangaben Band: 14, Heft: 6, Seiten: 1244-1253 Artikelnummer: , Supplement: ,
Verlag Cold Spring Harbor Laboratory Press
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Molecular Immunology (IMI)
PSP-Element(e) G-501700-003
DOI 10.1261/rna.973808
Scopus ID 44149126227
Erfassungsdatum 2008-12-12
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