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摘要
We report that reliable quantitative proteome analyses can be performed with tissue samples stored at -80 degrees C for up to 10 years. However, storing protein extracts at 4 degrees C for 24h and freezing protein extracts at -80 degrees C and thawing them significantly altered 41.6 and 17.5% of all spot intensities on 2-DE gels, respectively. Fortunately, these storing effects did not impair the reliability of quantifying 2-DE experiments. Nonetheless, the results show that freezing and storage conditions should be carefully controlled in proteomic experiments.
- 出版日期2010-4
