A polymer-based approach to reconstruct 3d chromatin structures from single cell HiC and implications for knotting

Peter Virnau (U Mainz)

Mar 06. 2024, 15:35 — 16:10

The rise of HiC chromosome capture methods has recently enabled low-resolution structures of interphase chromatin [1]. In this presentation I will explain how haploid [2] and diploid [3] structures based on single cell contact matrices are obtained from simulations of coarse-grained bead-spring polymer Go models. The role of knots which naturally occur in this process [2,4] will be critically assessed.

[1] T.J. Stevens et al, Nature 544, 59-64 (2017). [2] S. Wettermann et al, Comp. Mat. Sci 173, 109178 (2020). [3] J. Rothörl et al, Front. Bioinform. 3, 1284484 (2023). [4] J.T. Siebert et al, Polymers 9, 317 (2017).

Further Information
Venue:
ESI Boltzmann Lecture Hall
Associated Event:
Chromatin Modeling: Integrating Mathematics, Physics, and Computation for Advances in Biology and Medicine (Workshop)
Organizer(s):
Anton Goloborodko (IMBA, Vienna)
Tamar Schlick (NYU, New York)
Jan Smrek (U of Vienna)