SeminarRecording AvailablePhysics of Life

4D Chromosome Organization: Combining Polymer Physics, Knot Theory and High Performance Computing

Schedule
Monday, March 7, 2022
00:00 UTC
Anna Lappala

Dr.

Harvard University

Host: SLAAM by UC Merced

Recording

Event Information

Recording

Available

Host

SLAAM by UC Merced

Duration

70 minutes

Abstract

Self-organization is a universal concept spanning numerous disciplines including mathematics, physics and biology. Chromosomes are self-organizing polymers that fold into orderly, hierarchical and yet dynamic structures. In the past decade, advances in experimental biology have provided a means to reveal information about chromosome connectivity, allowing us to directly use this information from experiments to generate 3D models of individual genes, chromosomes and even genomes. In this talk I will present a novel data-driven modeling approach and discuss a number of possibilities that this method holds. I will discuss a detailed study of the time-evolution of X chromosome inactivation, highlighting both global and local properties of chromosomes that result in topology-driven dynamical arrest and present and characterize a novel type of motion we discovered in knots that may have applications to nanoscale materials and machines.

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