کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6141658 | 1227259 | 2010 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Identification of residues within the L2 region of rhesus TRIM5α that are required for retroviral restriction and cytoplasmic body localization
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
ایمنی شناسی و میکروب شناسی
ویروس شناسی
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چکیده انگلیسی
The intracellular restriction factor TRIM5α, inhibits infection by numerous retroviruses in a species-specific manner. The best characterized example of this restriction is the TRIM5α protein from rhesus macaques (rhTRIM5α), which potently inhibits HIV-1 infection. TRIM5α localizes to cytoplasmic assemblies of protein referred to as cytoplasmic bodies, though the role that these bodies play in retroviral restriction is unclear. We employed a series of truncation mutants to identify a discrete region, located within the Linker2 region connecting the coiled-coil and B30.2/PRYSPRY domains of TRIM5α, which is required for cytoplasmic body localization. Deletion of this region in the context of full-length rhTRIM5α abrogates cytoplasmic body localization. Alanine mutagenesis of the residues in this region identifies two stretches of amino acids that are required for both cytoplasmic body localization and retroviral restriction. This work suggests that the determinants that mediate TRIM5α localization to cytoplasmic bodies play a requisite role in retroviral restriction.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Virology - Volume 405, Issue 1, 15 September 2010, Pages 259-266
Journal: Virology - Volume 405, Issue 1, 15 September 2010, Pages 259-266
نویسندگان
Jaya Sastri, Christopher O'Connor, Cindy M. Danielson, Michael McRaven, Patricio Perez, Felipe Diaz-Griffero, Edward M. Campbell,