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From screen to structure with a harvestable microfluidic device
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2011 (English)In: Acta Crystallographica. Section F: Structural Biology and Crystallization Communications, ISSN 1744-3091, E-ISSN 1744-3091, Vol. 67, 971-975 p.Article in journal (Refereed) Published
Abstract [en]

Advances in automation have facilitated the widespread adoption of high-throughput vapour-diffusion methods for initial crystallization screening. However, for many proteins, screening thousands of crystallization conditions fails to yield crystals of sufficient quality for structural characterization. Here, the rates of crystal identification for thaumatin, catalase and myoglobin using microfluidic Crystal Former devices and sitting-drop vapour-diffusion plates are compared. It is shown that the Crystal Former results in a greater number of identified initial crystallization conditions compared with vapour diffusion. Furthermore, crystals of thaumatin and lysozyme obtained in the Crystal Former were used directly for structure determination both in situ and upon harvesting and cryocooling. On the basis of these results, a crystallization strategy is proposed that uses multiple methods with distinct kinetic trajectories through the protein phase diagram to increase the output of crystallization pipelines.

Place, publisher, year, edition, pages
2011. Vol. 67, 971-975 p.
Keyword [en]
Crystallographic structure determination, protein crystallization, macromolecular crystallization, crystals, diffraction, counterdiffusion, refinement, diffusion, strategy, model
National Category
Biochemistry and Molecular Biology
Identifiers
URN: urn:nbn:se:uu:diva-158170DOI: 10.1107/S1744309111024456ISI: 000293698400031OAI: oai:DiVA.org:uu-158170DiVA: diva2:438497
Available from: 2011-09-02 Created: 2011-09-01 Last updated: 2017-12-08Bibliographically approved

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Structure and Molecular Biology
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Acta Crystallographica. Section F: Structural Biology and Crystallization Communications
Biochemistry and Molecular Biology

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