Pulling a Single Chromatin Fiber Reveals the Forces That Maintain Its Higher-Order Structure

Single chicken erythrocyte chromatin fibers were stretched and released at room temperature with force-measuring laser tweezers. In low ionic strength, the stretch-release curves reveal a process of continuous deformation with little or no internucleosomal attraction. A persistence length of 30 nm a...

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Veröffentlicht in:	Proceedings of the National Academy of Sciences - PNAS 2000-01, Vol.97 (1), p.127-132
Hauptverfasser:	Cui, Yujia, Bustamante, Carlos
Format:	Artikel
Sprache:	eng
Schlagworte:	Animals Biological Sciences Chickens Chromatin Chromatin - chemistry Curvature Deoxyribonucleic acid DNA Elastic tissue Elasticity Erythrocytes Erythrocytes - chemistry Histones Histones - chemistry Hysteresis Lasers Microscopy Nucleosomes Nucleosomes - chemistry Osmolar Concentration Physics Polystyrenes Sodium Chloride - pharmacology Stress, Mechanical Thermodynamics
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