کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6292416 | 1302553 | 2007 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Schistosoma mansoni: Heterologous complementation of a yeast null mutant by SmRbx, a protein similar to a RING box protein involved in ubiquitination
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
ایمنی شناسی و میکروب شناسی
انگل شناسی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The SCF (Skp1-Cul1-F-box) complex is one of the several E3 ligase enzymes and it catalyzes protein ubiquitination and degradation by the 26S proteasome. Rbx1 is a member of the SCF complex in humans and HRT1 is its yeast orthologue. A cDNA encoding a Schistosoma mansoni Rbx1 homolog was cloned and functionally characterized. Heterologous functional complementation in yeast showed that the worm SmRbx gene was able to complement the HRT1yeast null mutation. Gene deletion constructs for N- and C-termini truncated proteins were used to transform hrt1â yeast mutant strains, allowing us to observe that regions reported to be involved in the interaction with cullin1 (Cul1) were essential for SmRbx function. Yeast two-hybrid assays using SmRbx and yeast Cul1 confirmed that SmRbx, but not the mutant SmRbxÎ24N, lacking the N-terminus of the protein, was capable of interacting with Cul1. These results suggest that SmRbx protein is involved in the SCF complex formation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Experimental Parasitology - Volume 116, Issue 4, August 2007, Pages 440-449
Journal: Experimental Parasitology - Volume 116, Issue 4, August 2007, Pages 440-449
نویسندگان
Débora N. Santos, Pedro H.N. Aguiar, Francisco P. Lobo, Marina M. Mourão, José H.M. Tambor, Analina F. Valadão, Adlane Vilas-Boas, Francisco G. Nobrega, Philip T. LoVerde, Andréa M. Macedo, Sérgio D.J. Pena, Carlos R. Machado, Glória R. Franco,