A computational approach to study the energy transduction mechanism in the Na+/K+-ATPase

Weidemüller, Christian; Hauser, Karin

A computational approach to study the energy transduction mechanism in the Na+/K+-ATPase

Dateien

Weidemueller_computational_approach.pdfGröße: 127.62 KBDownloads: 265

Datum

2008

Publikationstyp

Beitrag zu einem Konferenzband

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HANSMANN, Ulrich H. E., ed. and others. From computational biophysics to systems biology : (CBSB0 8) ; symposium, 19. - 21. May 2008, Forschungszentrum Jülich ; proceedings. Jülich: NIC, 2008, pp. 409-412. ISBN 978-3-9810843-6-8

Zusammenfassung

The Na+/K+-ATPase pumps ions across the membrane which is necessary for maintaining the membrane potential. The energy for this active ion transport is provided by binding and hydrolysis of ATP and has to be transferred from the cytoplasmic nucleotide binding site to the transmembrane domain of ion transport. This transport cycle can also be induced experimentally by applying voltage jumps across the membrane. We simulated the applied electric field by an ionic capacitor and studied the impact on the Na+/K+-ATPase by a combination of multiconformation continuum electrostatics (MCCE) and molecular dynamics (MD). Our calculations show a selective activation of the helices M5, M6 and M8 by the electric field. Those helices are likely to act as energy transduction elements.

Fachgebiet (DDC)

540 Chemie

Konferenz

CBSB08, 19. Mai 2008 - 21. Mai 2008, Forschungszentrum Jülich

Zitieren

ISO 690

WEIDEMÜLLER, Christian, Karin HAUSER, 2008. A computational approach to study the energy transduction mechanism in the Na+/K+-ATPase. CBSB08. Forschungszentrum Jülich, 19. Mai 2008 - 21. Mai 2008. In: HANSMANN, Ulrich H. E., ed. and others. From computational biophysics to systems biology : (CBSB0 8) ; symposium, 19. - 21. May 2008, Forschungszentrum Jülich ; proceedings. Jülich: NIC, 2008, pp. 409-412. ISBN 978-3-9810843-6-8

BibTex

@inproceedings{Weidemuller2008compu-17532,
  year={2008},
  title={A computational approach to study the energy transduction mechanism in the Na+/K+-ATPase},
  isbn={978-3-9810843-6-8},
  publisher={NIC},
  address={Jülich},
  booktitle={From computational biophysics to systems biology : (CBSB0 8) ; symposium, 19. - 21. May 2008, Forschungszentrum Jülich ; proceedings},
  pages={409--412},
  editor={Hansmann, Ulrich H. E.},
  author={Weidemüller, Christian and Hauser, Karin}
}

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