Dresden 2017 – wissenschaftliches Programm

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BP: Fachverband Biologische Physik

BP 23: Posters - Statistical Physics of Biological Systems

BP 23.6: Poster

Dienstag, 21. März 2017, 14:00–16:00, P1A

Quantification of polymer loop shapes in application to chromosome oscillations — •Wenwen Huang and Vasily Zaburdaev — Max Planck Institute for the Physics of Complex Systems, Dresden, Germany

In this contribution, we model the chromosomes in meiotic fission yeast by pinned bead-rod loops in external force field. The 3D gyration tensor containing information of all beads positions is calculated. Based on the gyration tensor, the shape of polymer loops is quantified under different strength of the external force field. We show that the resulting shape is more rod-like and prolate under strong force and more sphere-like and oblate under weak force. Our study provides a quantitative description of the shape of pinned polymer loops under external field and may help us to describe the relevant biological processes in fission yeast such as chromosome oscillations and their alignment during meiosis.