Kinky DNA in solution: Small-angle-scattering study of a nucleosome positioning sequence
نویسندگان
چکیده
منابع مشابه
A novel DNA sequence periodicity decodes nucleosome positioning
There have been two types of well-characterized DNA sequence periodicities; both are found to be associated with important molecular mechanisms. One is a 3-nt periodicity corresponding to codon triplets, the other is a 10.5-nt periodicity related to the structure of DNA helixes. In the process of analyzing the genome and transcriptome of Trichomonas vaginalis, we observed a 120.9-nt periodicity...
متن کاملDNA structural and sequence determinants for nucleosome positioning
Positioned nucleosomes are thought to be regulators of genome function but the role of DNA sequence and structure in the control of positioning is poorly understood. We examined the intrinsic curvature of DNA sequences that are known to position histone octamers at single translational sites as a first step to investigate this problem and discovered a conserved pattern of intrinsic DNA curvatur...
متن کاملSmall-angle scattering studies of biological macromolecules in solution
Small-angle scattering (SAS) of x-rays and neutrons is a fundamental tool in the study of biological macromolecules. The major advantage of the method lies in its ability to provide structural information about partially or completely disordered systems. SAS allows one to study the structure of native particles in near physiological environments and to analyse structural changes in response to ...
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The resolution and reliability of solution scattering models have been significantly improved by ab initio shape and domain structure determination, and by detailed modelling of macromolecular complexes using rigid-body refinement. Substantial progress has also been made in the quantitative analysis and modelling of assembly and folding processes, and intermolecular interactions.
متن کاملNucleosome positioning signals in genomic DNA.
Although histones can form nucleosomes on virtually any genomic sequence, DNA sequences show considerable variability in their binding affinity. We have used DNA sequences of Saccharomyces cerevisiae whose nucleosome binding affinities have been experimentally determined (Yuan et al. 2005) to train a support vector machine to identify the nucleosome formation potential of any given sequence of ...
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ژورنال
عنوان ژورنال: Physical Review E
سال: 2018
ISSN: 2470-0045,2470-0053
DOI: 10.1103/physreve.98.042417