Event Title: OR
Speaker Last Name:    OR
Year: (yyyy)

Mathematics Colloquium


Date:  Monday, March 13, 2006

Title:  The Topology of DNA-Protein Interactions

Abstract:  DNA molecules often have a circular, or topologically constrained, central axis. The topology of this axis can influence which proteins interact with the underlying DNA. Subsequently, there are proteins, topoisomerases, whose primary function is to change the DNA axis topology. Additionally, there are protein families that change the axis topology as a by-product of their interaction with DNA. This talk will describe typical DNA conformations, and the families of proteins that change these. We will present one example illustrating how 3-manifold topology has been useful in understanding certain DNA-protein interactions, and discuss the most common topological techniques involved.

Speaker:  Dorothy Buck
Institution:  Imperial College, London


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