Comparison of colorimetric methods for the quantification of model proteins in aqueous two-phase systems

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Glyk, A.; Heinisch, S.L.; Scheper, T.; Beutel, S.: Comparison of colorimetric methods for the quantification of model proteins in aqueous two-phase systems. In: Analytical Biochemistry 477 (2015), S. 35-37. DOI: https://doi.org/10.1016/j.ab.2015.02.007

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Abstract: 
In the current study, the quantification of different model proteins in the presence of typical aqueous two-phase system components was investigated by using the Bradford and bicinchoninic acid (BCA) assays. Each phase-forming component above 1 and 5 wt% had considerable effects on the protein quantification in both assays, respectively, resulting in diminished protein recoveries/absorption values by increasing poly(ethylene glycol) (PEG)/salt concentration and PEG molecular weight. Therefore, a convenient dilution of both components (up to 1 and 5 wt%) before protein quantification is recommended in both assays, respectively, where the BCA assay is favored in comparison with the Bradford assay.
License of this version: CC BY-NC-ND 4.0 Unported
Document Type: Article
Publishing status: acceptedVersion
Issue Date: 2015
Appears in Collections:Naturwissenschaftliche Fakultät

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pos. country downloads
total perc.
1 image of flag of Germany Germany 210 48.50%
2 image of flag of United States United States 61 14.09%
3 image of flag of United Kingdom United Kingdom 24 5.54%
4 image of flag of China China 20 4.62%
5 image of flag of Canada Canada 10 2.31%
6 image of flag of Turkey Turkey 9 2.08%
7 image of flag of Mexico Mexico 8 1.85%
8 image of flag of Sweden Sweden 7 1.62%
9 image of flag of India India 7 1.62%
10 image of flag of Australia Australia 7 1.62%
    other countries 70 16.17%

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