Abstract
ABSTRACT The tripartite motif 5α protein (TRIM5α) is one of several factors expressed by mammalian cells that inhibit retrovirus replication. Human TRIM5α (huTRIM5α) inhibits infection by N-tropic murine leukemia virus (N-MLV) but is inactive against human immunodeficiency virus type 1 (HIV-1). However, we show that replacement of a small segment in the carboxy-terminal B30.2/SPRY domain of huTRIM5α with its rhesus macaque counterpart (rhTRIM5α) endows it with the ability to potently inhibit HIV-1 infection. The B30.2/SPRY domain and an additional domain in huTRIM5α, comprising the amino-terminal RING and B-box components of the TRIM motif, are required for N-MLV restriction activity, while the intervening coiled-coil domain is necessary and sufficient for huTRIM5α multimerization. Truncated huTRIM5α proteins that lack either or both the N-terminal RING/B-Box or the C-terminal B30.2/SPRY domain form heteromultimers with full-length huTRIM5α and are dominant inhibitors of its N-MLV restricting activity, suggesting that homomultimerization of intact huTRIM5α monomers is necessary for N-MLV restriction. However, localization in large cytoplasmic bodies is not required for inhibition of N-MLV by huTRIM5α or for inhibition of HIV-1 by chimeric or rhTRIM5α.
References
32
Referenced
211
10.1038/382826a0
10.1038/ni1125
10.1128/JVI.75.11.5182-5188.2001
10.1128/JVI.74.16.7422-7430.2000
10.1128/jvi.67.8.5030-5034.1993
10.1073/pnas.162299499
10.1128/JVI.79.2.869-875.2005
10.1126/science.1074276
10.1146/annurev.genet.38.072902.094136
10.1016/S0092-8674(00)80141-5
10.1016/S0092-8674(03)00423-9
10.1093/emboj/cdg042
10.1073/pnas.0402361101
10.1073/pnas.0402474101
10.1006/viro.1996.0604
- Lilly, F. 1970. Fv-2: identification and location of a second gene governing the spleen focus response to Friend leukemia virus in mice. J. Natl. Cancer Inst.45:163-169. / J. Natl. Cancer Inst. (1970)
10.1126/science.155.3761.461
10.1016/0092-8674(93)90637-6
10.1038/nature01709
10.1038/nm1201-1313
10.1073/pnas.0404640101
- Odaka, T., and T. Yamamoto. 1965. Inheritance of susceptibility to Friend mouse leukemia virus. 11. Spleen foci method applied to test the susceptibility of crossbred progeny between a sensitive and a resistant strain. Jpn J. Exp. Med.35:311-314. / Jpn J. Exp. Med. (1965)
10.1073/pnas.0403364101
10.1084/jem.133.6.1219
10.1093/emboj/20.9.2140
10.1038/nature00939
10.20506/rst.17.1.1080
10.1038/nature02343
10.1016/S0014-4827(03)00187-3
10.1073/pnas.0402876101
10.1016/j.cub.2004.12.042
10.1038/nature01707
Dates
Type | When |
---|---|
Created | 20 years, 1 month ago (July 1, 2005, 2:29 a.m.) |
Deposited | 3 years, 5 months ago (March 5, 2022, 4:22 a.m.) |
Indexed | 1 month, 2 weeks ago (July 1, 2025, 8:33 a.m.) |
Issued | 20 years, 1 month ago (July 1, 2005) |
Published | 20 years, 1 month ago (July 1, 2005) |
Published Print | 20 years, 1 month ago (July 1, 2005) |
@article{Perez_Caballero_2005, title={Human Tripartite Motif 5α Domains Responsible for Retrovirus Restriction Activity and Specificity}, volume={79}, ISSN={1098-5514}, url={http://dx.doi.org/10.1128/jvi.79.14.8969-8978.2005}, DOI={10.1128/jvi.79.14.8969-8978.2005}, number={14}, journal={Journal of Virology}, publisher={American Society for Microbiology}, author={Perez-Caballero, David and Hatziioannou, Theodora and Yang, Annie and Cowan, Simone and Bieniasz, Paul D.}, year={2005}, month=jul, pages={8969–8978} }