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  Two-dimensional crystallization of a bacterial surface protein on lipid vesicles under controlled conditions

Paul, A., Engelhardt, H., Jakubowski, U., & Baumeister, W. (1992). Two-dimensional crystallization of a bacterial surface protein on lipid vesicles under controlled conditions. Biophysical Journal, 61(1), 172-188.

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Paul, A., Author
Engelhardt, H.1, Author              
Jakubowski, U.1, Author              
Baumeister, W.1, Author              
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1External Organizations, ou_persistent22              

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Free keywords: Biomembranes; Biothermics; Crystallisation; Molecular biophysics; Proteins; Biomolecular structure, configuration, conformation, and active sites [A8715B]; Physical chemistry of biomolecular solutions; condensed states [A8715D]; Natural and artificial biomembranes [A8720E]; Biothermics [A8716]
 Abstract: The solubilized surface protein of the Gram-negative bacterium Comamonas acidovorans was reconstituted on lipid vesicles by means of controlled dialysis. To this end, a multichamber dialysis apparatus was built which allows one to control the temperature and the dialysis rate, to apply various temperatures or buffer systems and sample conditions in a single experiment, and to monitor the turbidity of the sample by means of light scattering. The reconstitution conditions were optimized such that the surface protein formed two-dimensional crystals suitable for electron crystallography. The recrystallized surface protein arrays gave a resolution of approximately 1.3 nm in projection after correlation averaging of negatively stained preparations. The surface protein assembled into partially self-contained two-dimensional crystals which possess a strong shape-determining effect and formed cylinders and various cone-shaped vesicles. The development of the various vesicle forms is described in a model. (54 References).

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 Dates: 1992
 Publication Status: Published in print
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 Identifiers: eDoc: 318631
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Title: Biophysical Journal
Source Genre: Journal
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Pages: - Volume / Issue: 61 (1) Sequence Number: - Start / End Page: 172 - 188 Identifier: -