Crucial roles of charged saccharide moieties in survival of gram negative bacteria against protamine revealed by combination of grazing incidence x-ray structural characterizations and Monte Carlo simulations
Grazing incidence x-ray scattering techniques and Monte Carlo (MC) simulations are combined to reveal the influence of molecular structure (genetic mutation) and divalent cations on the survival of gram negative bacteria against cationic peptides such as protamine. The former yields detailed structu...
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| Hauptverfasser: | , , , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
2 April 2010
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| In: |
Physical review. E, Statistical, nonlinear, and soft matter physics
Year: 2010, Jahrgang: 81, Heft: 4, Pages: 1-12 |
| ISSN: | 1550-2376 |
| DOI: | 10.1103/PhysRevE.81.041901 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevE.81.041901 Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevE.81.041901 
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| Verfasserangaben: | Rafael G. Oliveira, Emanuel Schneck, Bonnie E. Quinn, Oleg V. Konovalov, Klaus Brandenburg, Thomas Gutsmann, Tom Gill, Charles B. Hanna, David A. Pink, and Motomu Tanaka |
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| 245 | 1 | 0 | |a Crucial roles of charged saccharide moieties in survival of gram negative bacteria against protamine revealed by combination of grazing incidence x-ray structural characterizations and Monte Carlo simulations |c Rafael G. Oliveira, Emanuel Schneck, Bonnie E. Quinn, Oleg V. Konovalov, Klaus Brandenburg, Thomas Gutsmann, Tom Gill, Charles B. Hanna, David A. Pink, and Motomu Tanaka |
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| 520 | |a Grazing incidence x-ray scattering techniques and Monte Carlo (MC) simulations are combined to reveal the influence of molecular structure (genetic mutation) and divalent cations on the survival of gram negative bacteria against cationic peptides such as protamine. The former yields detailed structures of bacterial lipopolysaccharide (LPS) membranes with minimized radiation damages, while the minimal computer model based on the linearized Poisson-Boltzmann theory allows for the simulation of conformational changes of macromolecules (LPSs and peptides) that occur in the time scale of ms. The complementary combination of the structural characterizations and MC simulation demonstrates that the condensations of divalent ions (Ca2+ or Mg2+) in the negatively charged core saccharides are crucial for bacterial survival. | ||
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| 700 | 1 | |a Quinn, Bonnie E. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Konovalov, Oleg V. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Brandenburg, Klaus |e VerfasserIn |4 aut | |
| 700 | 1 | |a Gutsmann, Thomas |e VerfasserIn |4 aut | |
| 700 | 1 | |a Gill, Tom |e VerfasserIn |4 aut | |
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