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Updated: Mar 2, 2026
10:40
Assembly of Nucleosomal Arrays from Recombinant Core Histones and Nucleosome Positioning DNA
Published on: September 10, 2013
23.2K
Solid-phase synthesis of highly repetitive chromatin assembly templates
Melissa J Blacketer1, Margaret K Gannon1, Isaac A Young1
1Roy J. Carver Department of Biochemistry, Biophysics and Molecular Biology, Iowa State University, 1210 Molecular Biology Building, Ames, IA, 50011, USA.
Analytical Biochemistry
|May 13, 2017
Summary
Synthesizing DNA templates for chromatin models is now easier with a novel solid-phase enzymatic ligation method. This approach efficiently creates repetitive DNA sequences for building complex chromatin structures.
Area of Science:
- Molecular Biology
- Biochemistry
- Genomics
Background:
- Synthesizing DNA templates with repetitive nucleosome positioning sequences for chromatin model systems is a significant challenge.
- Existing methods often struggle with the complexity and length of these repetitive sequences.
Purpose of the Study:
- To develop an efficient and versatile solid-phase strategy for generating DNA templates with repetitive sequences.
- To enable the construction of well-defined chromatin model systems.
Main Methods:
- A solid-phase strategy employing sequential enzymatic ligation of DNA monomers.
- Utilizing single nucleosome site monomers to create targeted templates of varying lengths, including a twelve-nucleosome site target.
Main Results:
- Successfully synthesized DNA templates with repetitive nucleosome positioning sequences.
- Demonstrated the assembly of these templates into well-defined chromatin model systems.
- Validated the utility and scalability of the solid-phase enzymatic ligation approach.
Conclusions:
- The described solid-phase strategy provides an effective method for synthesizing challenging repetitive DNA sequences.
- This approach is valuable for creating chromatin model systems and applicable to other repetitive DNA synthesis needs.
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