Facilitated diffusion of proteins on chromatin

Autor:	Benichou, O., Chevalier, C., Meyer, B., Voituriez, R.
Rok vydání:	2010
Předmět:	Condensed Matter - Statistical Mechanics Quantitative Biology - Subcellular Processes
Zdroj:	Phys. Rev. Lett. 106, 038102 (2011)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevLett.106.038102
Popis:	We present a theoretical model of facilitated diffusion of proteins in the cell nucleus. This model, which takes into account the successive binding/unbinding events of proteins to DNA, relies on a fractal description of the chromatin which has been recently evidenced experimentally. Facilitated diffusion is shown quantitatively to be favorable for a fast localization of a target locus by a transcription factor, and even to enable the minimization of the search time by tuning the affinity of the transcription factor with DNA. This study shows the robustness of the facilitated diffusion mechanism, invoked so far only for linear conformations of DNA. Comment: 4 pages, 4 figures, accepted version
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1006.4758 Zobrazit plný text záznamu View this record from Arxiv