Advanced search
2 files | 262.50 KB

Comparison of protein quantification and extraction methods suitable for E-coli cultures

Marjan De Mey (UGent) , Gaspard Lequeux (UGent) , Jo Maertens (UGent) , Cassandra De Muynck, Wim Soetaert (UGent) and Erick Vandamme (UGent)
(2008) BIOLOGICALS. 36(3). p.198-202
Author
Organization
Abstract
Many different extraction and analysis methods exist to determine the protein fraction of microbial cells. For metabolic engineering purposes it is important to have precise and accurate measurements. Therefore six different protein extraction protocols and seven protein quantification methods were tested and compared. Comparison was based on the reliability of the methods and boxplots of the normalized residuals. Some extraction techniques (SDS/chloroform and toluene) should never be used: the measurements are neither precise nor accurate. Bugbuster extraction combined with UV280 quantification gives the best results, followed by the combinations sonication-UV280 and EasyLyse-UV280. However, if one does not want to use the quantification method UV280, one can opt to use Bugbuster, EasyLyse or sonication extraction combined with any quantification method with exception of the EasyLyse-BCA_P and sonication-BCA_P combinations.
Keywords
protein quantification, protein extraction, metabolic modeling, Escherichia coli

Downloads

  • DeMey etal 2008 Biologicals authorversion.pdf
    • full text
    • |
    • open access
    • |
    • PDF
    • |
    • 69.40 KB
  • (...).pdf
    • full text
    • |
    • UGent only
    • |
    • PDF
    • |
    • 193.09 KB

Citation

Please use this url to cite or link to this publication:

Chicago
De Mey, Marjan, Gaspard Lequeux, Jo Maertens, Cassandra De Muynck, Wim Soetaert, and Erick Vandamme. 2008. “Comparison of Protein Quantification and Extraction Methods Suitable for E-coli Cultures.” Biologicals 36 (3): 198–202.
APA
De Mey, Marjan, Lequeux, G., Maertens, J., De Muynck, C., Soetaert, W., & Vandamme, E. (2008). Comparison of protein quantification and extraction methods suitable for E-coli cultures. BIOLOGICALS, 36(3), 198–202.
Vancouver
1.
De Mey M, Lequeux G, Maertens J, De Muynck C, Soetaert W, Vandamme E. Comparison of protein quantification and extraction methods suitable for E-coli cultures. BIOLOGICALS. 2008;36(3):198–202.
MLA
De Mey, Marjan, Gaspard Lequeux, Jo Maertens, et al. “Comparison of Protein Quantification and Extraction Methods Suitable for E-coli Cultures.” BIOLOGICALS 36.3 (2008): 198–202. Print.
@article{445253,
  abstract     = {Many different extraction and analysis methods exist to determine the protein fraction of microbial cells. For metabolic engineering purposes it is important to have precise and accurate measurements. Therefore six different protein extraction protocols and seven protein quantification methods were tested and compared. Comparison was based on the reliability of the methods and boxplots of the normalized residuals.
Some extraction techniques (SDS/chloroform and toluene) should never be used: the measurements are neither precise nor accurate. Bugbuster extraction combined with UV280 quantification gives the best results, followed by the combinations sonication-UV280 and EasyLyse-UV280. However, if one does not want to use the quantification method UV280, one can opt to use Bugbuster, EasyLyse or sonication extraction combined with any quantification method with exception of the EasyLyse-BCA\_P and sonication-BCA\_P combinations.},
  author       = {De Mey, Marjan and Lequeux, Gaspard and Maertens, Jo and De Muynck, Cassandra and Soetaert, Wim and Vandamme, Erick},
  issn         = {1045-1056},
  journal      = {BIOLOGICALS},
  language     = {eng},
  number       = {3},
  pages        = {198--202},
  title        = {Comparison of protein quantification and extraction methods suitable for E-coli cultures},
  volume       = {36},
  year         = {2008},
}

Web of Science
Times cited: