کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8298487 1536900 2016 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Mapping ubiquitination sites of S. cerevisiae Mcm10
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی زیست شیمی
پیش نمایش صفحه اول مقاله
Mapping ubiquitination sites of S. cerevisiae Mcm10
چکیده انگلیسی
Minichromosome maintenance protein (Mcm) 10 is a part of the eukaryotic replication machinery and highly conserved throughout evolution. As a multivalent DNA scaffold, Mcm10 coordinates the action of proteins that are indispensable for lagging strand synthesis, such as the replication clamp, proliferating cell nuclear antigen (PCNA). The binding between Mcm10 and PCNA serves an essential function during DNA elongation and is mediated by the ubiquitination of Mcm10. Here we map lysine 372 as the primary attachment site for ubiquitin on S. cerevisiae Mcm10. Moreover, we identify five additional lysines that can be ubiquitinated. Mutation of lysine 372 to arginine ablates ubiquitination of overexpressed protein and causes sensitivity to the replication inhibitor hydroxyurea in cells that are S-phase checkpoint compromised. Together, these findings reveal the high selectivity of the ubiquitination machinery that targets Mcm10 and that ubiquitination has a role in suppressing replication stress.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biochemistry and Biophysics Reports - Volume 8, December 2016, Pages 212-218
نویسندگان
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