Chapter title |
Applications of Magnetic Tweezers to Studies of NAPs
|
---|---|
Chapter number | 14 |
Book title |
The Bacterial Nucleoid
|
Published in |
Methods in molecular biology, January 2017
|
DOI | 10.1007/978-1-4939-7098-8_14 |
Pubmed ID | |
Book ISBNs |
978-1-4939-7097-1, 978-1-4939-7098-8
|
Authors |
Ricksen S. Winardhi, Jie Yan, Winardhi, Ricksen S., Yan, Jie |
Abstract |
Nucleoid-associated proteins (NAPs) are important factors in shaping bacterial nucleoid and regulating global gene expression. A great deal of insights into NAPs can be obtained through studies using single DNA molecule, which has been made possible owing to recent rapid development of single-DNA manipulation techniques. These studies provide information on modes of binding to DNA, which shed light on the mechanism underlying the regulatory function of NAPs. In addition, how NAPs organize DNA and thus their contribution to chromosomal DNA packaging can be determined. In this chapter, we introduce transverse magnetic tweezers that allows for convenient manipulation of long DNA molecules, and its applications in studies of NAPs as exemplified by the E. coli H-NS protein. We describe how transverse magnetic tweezers is a powerful tool that can be used to characterize the DNA binding and organization modes of NAPs and how such information leads to better understanding of its roles in DNA packaging of bacterial nucleoid and transcription regulation. |
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