Control of the localization and function of a miRNA silencing component TNRC6A by Argonaute protein
Open accessAbstract
GW182 family proteins play important roles in microRNA (miRNA)-mediated RNA silencing. They directly interact with Argonaute (Ago) proteins in processing bodies (P bodies), cytoplasmic foci involved in mRNA degradation and storage. Recently, we revealed that a human GW182 family protein, TNRC6A, is a nuclear-cytoplasmic shuttling protein, and its subcellular localization is regulated by its own nuclear localization signal and nuclear export signal. Regarding the further controlling mechanism of TNRC6A subcellular localization, we found that TNRC6A protein is tethered in P bodies by direct interaction with Ago2 under Ago2 overexpression condition in HeLa cells. Furthermore, it was revealed that such Ago proteins might be strongly tethered in the P bodies through Ago-bound small RNAs. Thus, our results indicate that TNRC6A subcellular localization is substantially controlled by the interaction with Ago proteins. Furthermore, it was also revealed that the TNRC6A subcellular localization affects the RNA silencing activity.
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miRISC and target mRNA localize in multiple subcellular compartments including rough endoplasmic reticulum, P-bodies, stress granules, trans-Golgi network, early/late endosomes, multivesicular bodies, lysosomes, mitochondria, and the nucleus.
“miRISC and target mRNA have been observed to localize in multiple subcellular compartments including rough endoplasmic reticulum (rER) (70), processing (P)-bodies (71), stress granules (SG) (72), the trans-Golgi network (TGN), early/late endosomes (73), multivesicular bodies (MVB) (74), lysosomes (74), mitochondria (75, 76), and the nucleus (66, 77) (Figure 2).”
From Overview of MicroRNA Biogenesis, Mechanisms of Actions, and Circulation (2018) · cites this paper as [71]
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Overview of MicroRNA Biogenesis, Mechanisms of Actions, and Circulation
O'Brien, J., Hayder, H., Zayed, Y., & Peng, C. (2018) · Frontiers in Endocrinology · doi:10.3389/fendo.2018.00402 · Cited by 5,287 · see citing works
- Authors
- Nishi, K., Takahashi, T., Suzawa, M., Miyakawa, T., Nagasawa, T., Ming, Y., Tanokura, M., & Ui-Tei, K.
- Affiliations
- The University of Tokyo (JP)
- Venue
- Nucleic Acids Research
- Publisher
- Oxford University Press (OUP)
- Published
- 2015-10-07
- Volume
- 43
- Issue
- 20
- Pages
- gkv1026
- ISSN
- 0305-1048 (ISSN-L)
- 1362-4962
- PMC
- PMC4787778
- OpenAlex
- W2175457304
- Cited by
- 43
- References
- 57
- Citations by year
- 2025: 5 · 2024: 4 · 2023: 7 · 2022: 5 · 2021: 4 · 2020: 4 · 2019: 5 · 2018: 3 · 2017: 3 · 2016: 3
- FWCI
- 1.30
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- Locations
- Nucleic Acids Research (publishedVersion, cc-by-nc)
- PubMed Central (publishedVersion, cc-by-nc)
- PubMed (publishedVersion)
- Funders
- Ministry of Education, Culture, Sports, Science and Technology
- Japan Society for the Promotion of Science (15K19124, 23228003, 15H04319)
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Interference and Gene Delivery
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › MicroRNA in disease regulation
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Research and Splicing
- Keywords
- TNRC6A, Argonaute 2, Argonaute proteins, P-bodies, RNA silencing, subcellular localization, nucleocytoplasmic shuttling, nuclear localization signal, nuclear export signal, small RNA, mRNA degradation, HeLa cells
- MeSH terms
- Autoantigens, Cell Nucleus, Cytoplasm, HeLa Cells, Humans, Mutation, Transfection, RNA-Binding Proteins, Amino Acid Motifs, Active Transport, Cell Nucleus, RNA Interference, MicroRNAs, RNA, Small Untranslated, Argonaute Proteins
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