|COOKIES: By using this website you agree that we can place Google Analytics Cookies on your device for performance monitoring.|
Enzyme catalysis from linear-scaling DFT: application to chorismate mutase
If you have a question about this talk, please contact Dr. Mike Towler.
Combined quantum mechanics/molecular mechanics (QM/MM) methods, where only the substrate and a few residues are treated quantum mechanically, have become an important tool in computational enzymology. A recent QM/MM study [Org. Biomol. Chem., 9, 157, (2011)] has identied reaction pathways for the chorismate to prephenate rearrangement in solution and catalysed by Chorismate Mutase (CM). However, QM/MM approaches can be limited in accuracy by the empirical nature of classical force fields and from the interface between the QM and MM regions. The density functional theory code, onetep, uniquely combines near-complete basis set accuracy with computational costs that scale linearly with number of atoms, allowing accurate QM descriptions of the enzyme. We present linear-scaling DFT calculations on structures taken from the CM pathways described above, to examine the convergence of activation and reaction energies as the size of the QM region increases to thousands of atoms.
This talk is part of the Electronic Structure Discussion Group series.
This talk is included in these lists:
Note that ex-directory lists are not shown.
Other listsTalk about Jean Paul Sartre Quantitative History Seminar IMS-MRL External Seminar series
Other talksTBC (SP Workshop) Transformative Industrial Policy for Africa - A study for the United Nations Economic Commission for Africa Three stories of money in the Age of Discovery A systems approach to analysing host and parasite in murine trypanosomiasis Android: Mobile, Wearable and IoT devices - Designing Global, Scalable Systems Dr Duncan Howie: T cell metabolism and immune tolerance