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A comparison between the crystal and solution structures of Escherichia coli asparaginase II

100%

Kozak M., Jurga S.

Acta Biochimica Polonica

2002

tom 49

nr 2

The small angle X-ray scattering (SAXS) pattern of the homotetrameric asparaginase II from Escherichia coli was measured in solution in conditions resembling those in which its crystal form was obtained and compared with that calculated from the crystallographic model. The radius of gyration measured by SAXS is about 5% larger and the maximum dimension in the distance distribution function about 12% larger than the corresponding value calculated from the crystal structure. A comparison of the experimental and calculated distance distribution functions suggests that the overall quaternary structure in the crystal and in solution are similar but that the homotetramer is less compact in solution than in the crystal.

Nature and properties of metal cations in aqueous solutions

84%

Grzybkowski W.

Polish Journal of Environmental Studies

2006

tom 15

nr 4

Chemical nature, thermodynamic and kinetic properties of metal cations in aqueous solutions are described and discussed in terms of structural factors controlling physical properties of the systems. The structure of hydrated cations, reaction mechanism of water exchange on the cations, hydrolytic phenomena and acidity of the cations are presented. Correlations between coordination states of the salts in and bulk properties of the solutions are indicated. Elements of aquatic chemistry are presented.

Ograniczanie wyników

1 Acta Biochimica Polonica

1 Polish Journal of Environmental Studies

1 Grzybkowski W.

1 Jurga S.

1 Kozak M.

1 2006

1 2002

Wyniki wyszukiwania

A comparison between the crystal and solution structures of Escherichia coli asparaginase II

Nature and properties of metal cations in aqueous solutions