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Thermal Fluctuations in Histone During Denaturation

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Abstract:

In this paper, we address the issue of thermal fluctuations during the thermal denaturation of linker histone H1 which is the basic ingredient of chromatin assembly. We measure the thermal fluctuations using a sensitive nanocalorimeter based thermal fluctuation measurement set up which can measure fluctuations of the order of 1 part per billion. We find that the denaturation of the linker histone is not a simple process. It is characterized by cooling jumps (energy absorbing jumps) followed by slow dynamics which is followed by heating jumps (bursts of energy release).

Keywords: DENATURATION; HISTONE; THERMAL FLUCTUATIONS

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jnn.2007.781

Publication date: June 1, 2007

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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