Abstract
TRIM5 is a RING domain-E3 ubiquitin ligase that restricts infection by human immunodeficiency virus (HIV)-1 and other retroviruses immediately following virus invasion of the target cell cytoplasm1,2. Antiviral potency correlates with TRIM5 avidity for the retrovirion capsid lattice3,4 and several reports indicate that TRIM5 has a role in signal transduction5,6,7, but the precise mechanism of restriction is unknown8. Here we demonstrate that TRIM5 promotes innate immune signalling and that this activity is amplified by retroviral infection and interaction with the capsid lattice. Acting with the heterodimeric, ubiquitin-conjugating enzyme UBC13–UEV1A (also known as UBE2N–UBE2V1), TRIM5 catalyses the synthesis of unattached K63-linked ubiquitin chains that activate the TAK1 (also known as MAP3K7) kinase complex and stimulate AP-1 and NFκB signalling. Interaction with the HIV-1 capsid lattice greatly enhances the UBC13–UEV1A-dependent E3 activity of TRIM5 and challenge with retroviruses induces the transcription of AP-1 and NF-κB-dependent factors with a magnitude that tracks with TRIM5 avidity for the invading capsid. Finally, TAK1 and UBC13–UEV1A contribute to capsid-specific restriction by TRIM5. Thus, the retroviral restriction factor TRIM5 has two additional activities that are linked to restriction: it constitutively promotes innate immune signalling and it acts as a pattern recognition receptor specific for the retrovirus capsid lattice.
This is a preview of subscription content, access via your institution
Access options
Subscribe to this journal
Receive 51 print issues and online access
£199.00 per year
only £3.90 per issue
Buy this article
- Purchase on SpringerLink
- Instant access to full article PDF
Prices may be subject to local taxes which are calculated during checkout
Similar content being viewed by others
Accession codes
References
Sayah, D. M., Sokolskaja, E., Berthoux, L. & Luban, J. Cyclophilin A retrotransposition into TRIM5 explains owl monkey resistance to HIV-1. Nature 430, 569–573 (2004)
Stremlau, M. et al. The cytoplasmic body component TRIM5α restricts HIV-1 infection in Old World monkeys. Nature 427, 848–853 (2004)
Sebastian, S. & Luban, J. TRIM5α selectively binds a restriction-sensitive retroviral capsid. Retrovirology 2, 40 (2005)
Stremlau, M. et al. Specific recognition and accelerated uncoating of retroviral capsids by the TRIM5α restriction factor. Proc. Natl Acad. Sci. USA 103, 5514–5519 (2006)
Berthoux, L. et al. As2O3 enhances retroviral reverse transcription and counteracts Ref1 antiviral activity. J. Virol. 77, 3167–3180 (2003)
Shi, M. et al. TRIM30α negatively regulates TLR-mediated NF-κΒ activation by targeting TAB2 and TAB3 for degradation. Nature Immunol. 9, 369–377 (2008)
Tareen, S. U. & Emerman, M. Human Trim5α has additional activities that are uncoupled from retroviral capsid recognition. Virology 409, 113–120 (2011)
Luban, J. & Cyclophilin, A. TRIM5, and resistance to human immunodeficiency virus type 1 infection. J. Virol. 81, 1054–1061 (2007)
Panne, D., Maniatis, T. & Harrison, S. C. An atomic model of the interferon-β enhanceosome. Cell 129, 1111–1123 (2007)
Ishii, K. J., Koyama, S., Nakagawa, A., Coban, C. & Akira, S. Host innate immune receptors and beyond: making sense of microbial infections. Cell Host Microbe 3, 352–363 (2008)
Xia, Z. P. et al. Direct activation of protein kinases by unanchored polyubiquitin chains. Nature 461, 114–119 (2009)
Kornbluth, R. S., Oh, P. S., Munis, J. R., Cleveland, P. H. & Richman, D. D. Interferons and bacterial lipopolysaccharide protect macrophages from productive infection by human immunodeficiency virus in vitro . J. Exp. Med. 169, 1137–1151 (1989)
Neagu, M. R. et al. Potent inhibition of HIV-1 by TRIM5-cyclophilin fusion proteins engineered from human components. J. Clin. Invest. 119, 3035–3047 (2009)
Roe, T., Reynolds, T. C., Yu, G. & Brown, P. O. Integration of murine leukemia virus DNA depends on mitosis. EMBO J. 12, 2099–2108 (1993)
Berthoux, L., Sebastian, S., Sokolskaja, E. & Luban, J. Cyclophilin A is required for TRIM5α-mediated resistance to HIV-1 in Old World monkey cells. Proc. Natl Acad. Sci. USA 102, 14849–14853 (2005)
Zeng, W. et al. Reconstitution of the RIG-I pathway reveals a signaling role of unanchored polyubiquitin chains in innate immunity. Cell 141, 315–330 (2010)
Langelier, C. R. et al. Biochemical characterization of a recombinant TRIM5α protein that restricts human immunodeficiency virus type 1 replication. J. Virol. 82, 11682–11694 (2008)
Yin, Q., Lamothe, B., Darnay, B. G. & Wu, H. Structural basis for the lack of E2 interaction in the RING domain of TRAF2. Biochemistry 48, 10558–10567 (2009)
Sokolskaja, E., Berthoux, L. & Luban, J. Cyclophilin A and TRIM5α independently regulate human immunodeficiency virus type 1 infectivity in human cells. J. Virol. 80, 2855–2862 (2006)
Yan, N., Regalado-Magdos, A. D., Stiggelbout, B., Lee-Kirsch, M. A. & Lieberman, J. The cytosolic exonuclease TREX1 inhibits the innate immune response to human immunodeficiency virus type 1. Nature Immunol. 11, 1005–1013 (2010)
Perron, M. J. et al. TRIM5α mediates the postentry block to N-tropic murine leukemia viruses in human cells. Proc. Natl Acad. Sci. USA 101, 11827–11832 (2004)
Ulm, J. W., Perron, M., Sodroski, J. & Mulligan, R. C. Complex determinants within the Moloney murine leukemia virus capsid modulate susceptibility of the virus to Fv1 and Ref1-mediated restriction. Virology 363, 245–255 (2007)
Pornillos, O. et al. X-ray structures of the hexameric building block of the HIV capsid. Cell 137, 1282–1292 (2009)
Ganser, B. K., Li, S., Klishko, V. Y., Finch, J. T. & Sundquist, W. I. Assembly and analysis of conical models for the HIV-1 core. Science 283, 80–83 (1999)
Ganser-Pornillos, B. K. et al. Hexagonal assembly of a restricting TRIM5α protein. Proc. Natl Acad. Sci. USA 108, 534–539 (2011)
Medzhitov, R. & Littman, D. HIV immunology needs a new direction. Nature 455, 591 (2008)
Pornillos, O., Ganser-Pornillos, B. K. & Yeager, M. Atomic-level modelling of the HIV capsid. Nature 469, 424–427 (2011)
Acknowledgements
We thank D. Baltimore, M. J. Birrer, J. Brojatsch, A. Cimarelli, A. DeIaco, S. Elledge, M. Emerman, W. Ferlin, D. Garcin, S. Ghosh, O. Haller, T. Hatziioannou, J. Hiscott, A. Iwasaki, D. Kolakofsky, M. Kosco-Vilbois, H. Malik, R. Medzhitov, M. R. Neagu, G. Napolitani, P. Palese, D. Pinschewer, O. Pornillos, L. Roux, O. Schwartz, M. Strubin, V. Studer, W. Sundquist, G. Towers, D. Trono, J. Tschopp, M. Yeager, M. Zufferey, and the Functional Genomics Center (Zürich), for ideas, technical assistance, and reagents. This work was supported by NIH grant RO1AI59159 to J.L., NIH grant R21AI087467 to W.M., Swiss National Science Foundation grant 3100A0-128655 to J.L. and 3100A0-122342 to M.G. and UZH Forschungskredit 54041402 to S.Z.
Author information
Authors and Affiliations
Contributions
T.P., S.H., J.G., C.R., C.S., M.P., W.M., M.G.G. and J.L. designed the experiments; T.P., S.H., D.M., S.Z., J.G., J.La., C.R., F.A.S., M.P., A.B., P.D.U. and L.C. performed the experiments. All authors contributed to the assembly and writing of the manuscript.
Corresponding author
Ethics declarations
Competing interests
The authors declare no competing financial interests.
Supplementary information
Supplementary Information
This file contains Supplementary Methods, additional references and Supplementary Tables 1-3. (PDF 553 kb)
Supplementary Figures
This file contains Supplementary Figures 1-12 with legends. (PDF 1521 kb)
Rights and permissions
About this article
Cite this article
Pertel, T., Hausmann, S., Morger, D. et al. TRIM5 is an innate immune sensor for the retrovirus capsid lattice. Nature 472, 361–365 (2011). https://doi.org/10.1038/nature09976
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1038/nature09976