کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1934589 1050644 2009 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Residues that affect human Argonaute2 concentration in cytoplasmic processing bodies
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی زیست شیمی
پیش نمایش صفحه اول مقاله
Residues that affect human Argonaute2 concentration in cytoplasmic processing bodies
چکیده انگلیسی

Sequence-specific gene silencing triggered by double-stranded RNA is a fundamental gene regulatory mechanism present in almost all eukaryotes. Argonaute2 (Ago2) is the central protein component of RNA-induced silencing complex (RISC), and resides in cytoplasmic processing bodies (P-bodies). In the present study, we demonstrated one human mutant Ago2 protein containing 6 point mutations (G32W, F128L, R196Q, P458S, T741A, S752G) failed to accumulate in P-bodies. Analysis of the different Ago2 revertants indicates the S752 as a key amino acid for P-body localization of Ago2. The S752 is evolutionary conserved in the Piwi domain of Ago2 homologs from worms, insects, plants and mammals. We further showed the single point mutation S752G interfering the interaction between Ago2 and Dcp1a, a key component of P-bodies.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biochemical and Biophysical Research Communications - Volume 378, Issue 3, 16 January 2009, Pages 620–624
نویسندگان
, , , , ,