期刊
NUCLEIC ACIDS RESEARCH
卷 45, 期 16, 页码 9229-9243出版社
OXFORD UNIV PRESS
DOI: 10.1093/nar/gkx616
关键词
-
资金
- Intramural Research Programs of the National Library of Medicine
- National Cancer Institute, National Institutes of Health
- Russian Science Foundation [14-24-00031, 14-24-00031-p]
- Howard Hughes Medical Institute Janelia Research Campus
- Johns Hopkins University Bloomberg Distinguished Professorship
- US-Russia Collaboration in the Biomedical Sciences National Institutes of Health visiting fellows program
- Intramural Research Program of the National Library of Medicine
- Russian Science Foundation [17-24-00007] Funding Source: Russian Science Foundation
Nucleosomes are the most abundant protein-DNA complexes in eukaryotes that provide compaction of genomic DNA and are implicated in regulation of transcription, DNA replication and repair. The details of DNA positioning on the nucleosome and the DNA conformation can provide key regulatory signals. Hydroxyl-radical footprinting (HRF) of proteinDNA complexes is a chemical technique that probes nucleosome organization in solution with a high precision unattainable by other methods. In this work we propose an integrative modeling method for constructing high-resolution atomistic models of nucleosomes based on HRF experiments. Ourmethod precisely identifies DNA positioning on nucleosome by combining HRF data for both DNA strands with the pseudo-symmetry constraints. We performed highresolution HRF for Saccharomyces cerevisiae centromeric nucleosome of unknown structure and characterized it using our integrativemodeling approach. Our model provides the basis for further understanding the cooperative engagement and interplay between Cse4p protein and the A-tracts important for centromere function.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据