Vasquez Paula A, Bloom Kerry
a Department of Mathematics; University of South Carolina; Columbia, SC USA.
Nucleus. 2014 Sep-Oct;5(5):376-90. doi: 10.4161/nucl.36275.
Clear organizational patterns on the genome have emerged from the statistics of population studies of fixed cells. However, how these results translate into the dynamics of individual living cells remains unexplored. We use statistical mechanics models derived from polymer physics to inquire into the effects that chromosome properties and dynamics have in the temporal and spatial behavior of the genome. Overall, changes in the properties of individual chains affect the behavior of all other chains in the domain. We explore two modifications of chain behavior: single chain motion and chain-chain interactions. We show that there is not a direct relation between these effects, as increase in motion, doesn't necessarily translate into an increase on chain interaction.
从固定细胞的群体研究统计中已经出现了基因组上清晰的组织模式。然而,这些结果如何转化为单个活细胞的动态变化仍未得到探索。我们使用源自聚合物物理学的统计力学模型来探究染色体特性和动态变化对基因组时空行为的影响。总体而言,单个链的特性变化会影响该区域内所有其他链的行为。我们探索了链行为的两种改变:单链运动和链间相互作用。我们表明,这些影响之间不存在直接关系,因为运动的增加不一定会转化为链间相互作用的增加。