Pharmaceutical Sciences Faculty Publications
Organic Solvent Extraction of Proteins and Peptides from Serum as an Effective Sample Preparation for Detection and Identification of Biomarkers by Mass Spectrometry
Document Type
Article
Publication Date
4-1-2004
Journal Title
Proteomics
ISSN
1615-9853
Volume
4
Issue
4
First Page
1195
Last Page
1203
DOI
10.1002/pmic.200300677
PubMed ID
15048999
Abstract
A method to extract peptides and low molecular weight proteins from serum under denaturing conditions using acetonitrile containing 0.1% trifluoroacetic acid has been developed. The extraction procedure precipitates large, abundant proteins to simplify subsequent mass spectral analysis. This sample preparation method provides an efficient way to extract serum peptides, enabling them to be compared and identified using different mass spectrometry approaches. Surface-enhanced laser desorption/ionization-time of flight mass spectrometry analysis of mouse blood serum samples prepared by this method allowed detection of two markers which were significantly reduced in mice with B cell lymphoma tumor. One of these markers has been identified as apolipoprotein A-II.
Keywords
Acetonitriles, biomarkers, chromatography, high pressure liquid, lymphoma, mass spectrometry, peptides, proteins, trifluoroacetic acid
Recommended Citation
Chertov, Oleg; Biragyn, Arya; Kwak, Larry W.; Simpson, John T.; Boronina, Tatiana; Hoang, Van M.; Prieto, DaRue A.; Conrads, Thomas P.; Veenstra, Timothy D.; and Fisher, Robert J., "Organic Solvent Extraction of Proteins and Peptides from Serum as an Effective Sample Preparation for Detection and Identification of Biomarkers by Mass Spectrometry" (2004). Pharmaceutical Sciences Faculty Publications. 478.
https://digitalcommons.cedarville.edu/pharmaceutical_sciences_publications/478
