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Rapid preparation of human blood plasma for bottom-up proteomics analysis


ABSTRACT: Summary This protocol offers step-by-step instructions for preparation of raw blood plasma for liquid chromatography - tandem mass spectrometry (LC-MS/MS) analysis in clinical proteomics studies. The technique is simple, robust, and reproducible, and the entire transformation from plasma proteins to desalted tryptic peptides takes only 3–4 h. The protocol ensures efficient denaturation of native proteases that, in combination with the speediness of the procedure, prevents non-specific and irreproducible cleavage of digested peptides. The protocol can be adopted for large-scale studies and automation. For complete details on the use and execution of this protocol, please refer to Overmyer et al. (2020). Graphical abstract Highlights • Instructions for preparation of human blood plasma for proteomics LC-MS/MS analysis• Transformation from plasma proteins to desalted tryptic peptides takes only 3–4 h• Rapid thermal denaturation of proteins minimizes native protease activity This protocol offers step-by-step instructions for preparation of raw blood plasma for LC-MS/MS analysis in clinical proteomics studies. The technique is simple, robust, and reproducible, and the entire transformation from plasma proteins to desalted tryptic peptides takes only 3–4 h. The protocol ensures efficient denaturation of native proteases that, in combination with the speediness of the procedure, prevents non-specific and irreproducible cleavage of digested peptides. The protocol can be adopted for large-scale studies and automation.

SUBMITTER: Shishkova E 

PROVIDER: S-EPMC8503661 | biostudies-literature |

REPOSITORIES: biostudies-literature

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