Insights from graph theory on the morphologies of actomyosin networks with multilinkers.

作者: Yossi Eliaz , Francois Nedelec , Greg Morrison , Herbert Levine , Margaret S. Cheung

DOI: 10.1103/PHYSREVE.102.062420

关键词:

摘要: Quantifying the influence of microscopic details on dynamics development overall structure a filamentous network is important in number biologically relevant contexts, but it not obvious what order parameters can be used to adequately describe this complex process. In paper we investigated role multivalent actin-binding proteins (ABPs) reorganizing actin filaments into higher-order networks via computer model semiflexible filaments. We characterize importance local connectivity among filaments, as well global features actomyosin networks. first map graph representations and then, using principles from network-theory parameters, combine properties these gain insight heterogeneous morphologies at level. find that ABPs with valency greater than 2 promote filament bundles large clusters much extent bivalent multilinkers. also show active myosinlike motor formation dendritic branches stalk bundles. Our work motivates future studies embrace theory tool detected by experiments, leading quantitative understanding manipulating self-assembly unique architectures underlie structural scaffold cell relating its mobility shape.

参考文章(52)
Nir Friedman, Daniel L. Koller, Probabilistic graphical models : principles and techniques The MIT Press. ,(2009)
Jordi Duch, Alex Arenas, Community detection in complex networks using extremal optimization Physical Review E. ,vol. 72, pp. 027104- ,(2005) , 10.1103/PHYSREVE.72.027104
Jari Saramäki, Mikko Kivelä, Jukka-Pekka Onnela, Kimmo Kaski, János Kertész, Generalizations of the clustering coefficient to weighted complex networks Physical Review E. ,vol. 75, pp. 027105- ,(2007) , 10.1103/PHYSREVE.75.027105
John Lisman, Ryohei Yasuda, Sridhar Raghavachari, Mechanisms of CaMKII action in long-term potentiation Nature Reviews Neuroscience. ,vol. 13, pp. 169- 182 ,(2012) , 10.1038/NRN3192
Terunaga Nakagawa, John A. Engler, Morgan Sheng, The dynamic turnover and functional roles of α-actinin in dendritic spines Neuropharmacology. ,vol. 47, pp. 734- 745 ,(2004) , 10.1016/J.NEUROPHARM.2004.07.022
Oren S. Rosenberg, Sebastian Deindl, Rou-Jia Sung, Angus C. Nairn, John Kuriyan, Structure of the Autoinhibited Kinase Domain of CaMKII and SAXS Analysis of the Holoenzyme Cell. ,vol. 123, pp. 849- 860 ,(2005) , 10.1016/J.CELL.2005.10.029
M. D. Rubio, R. Johnson, C. A. Miller, R. L. Huganir, G. Rumbaugh, Regulation of synapse structure and function by distinct myosin II motors The Journal of Neuroscience. ,vol. 31, pp. 1448- 1460 ,(2011) , 10.1523/JNEUROSCI.3294-10.2011
Udo Seifert, Stochastic thermodynamics: principles and perspectives European Physical Journal B. ,vol. 64, pp. 423- 431 ,(2008) , 10.1140/EPJB/E2008-00001-9
M. E. J. Newman, Mixing patterns in networks. Physical Review E. ,vol. 67, pp. 026126- ,(2003) , 10.1103/PHYSREVE.67.026126