Molecular dynamics was used to study the hydration of superoxide (0 2). The Helmholtz free energy of hydration of 0, was estimated by the thermodynamic integration method. The diffusion of 0, and the water structure around 0 2 were also studied. Two water models were used in the calculations and the
Molecular dynamics simulation of superoxide interacting with superoxide dismutase
โ Scribed by Jian Shen; J.Andrew McCammon
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 697 KB
- Volume
- 158
- Category
- Article
- ISSN
- 0301-0104
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The measurement of copper concentrations much lower than ppb is a good example of these applications. For this purpose the polarographic [6] and the pulsed NMR techniques [2] appear very suitable since they can sense superoxide concentrations of the order of 10-r' and 10m8 M respectively. Using th
## Synopsis A Brownian dynamics simulation method is used to study the diffusion-influenced bimolecular reaction between superoxide and superoxide dismutase (SOD). Using simple models, the details of which are based on the crystallographic structure of SOD, it is found that the electrostatic charg
The molecular dynamics (MD) simulation of superoxide dismutase (SOD) in water is carried out for a total of 23 ps. The simulation system is a 26 A sphere centered at the active site of SOD, including 1602 atoms from SOD and 1761 water molecules. There is no gross deviation from the x-ray structure f