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- Polarity and Chirality in NCP Mesophases and Chromatin Fibers doi link

Auteur(s): Manna Federico, Lorman V.(Corresp.), Podgornik R., Zeks B.

(Article) Publié: Molecular Crystals And Liquid Crystals, vol. 478 p.83-97 (2007)


Ref HAL: hal-00378228_v1
DOI: 10.1080/15421400701686918
WoS: 000252090900008
Exporter : BibTex | endNote
1 Citation
Résumé:

We propose a unified mechanism of phase transitions in the high density solutions of Nucleosomal Core Particles. We demonstrate its relation with the high shape and charge anisotropy of the NCP due to the DNA wrapping around the histone protein core. Hexagonal-to-lamellar transition in the solution of NCP columnar aggregates is shown to be driven by the condensation of the periodic antiparallel polar vector field. The transition results in the polar dyadic axes correlations. Fine structure of the NCP organization is also explained, namely the correlated tilting of NCP with respect to the column axis.



Commentaires: The 21st International Liquid Crystal Conference (July 2 -7, 2006), Keystone, Colorado (USA)