| Literature DB >> 34905164 |
Daisuke Nakajima1, Osamu Ohara1, Yusuke Kawashima2.
Abstract
Dried blood spots (DBS) are widely used for screening molecular profiles, including enzymatic activity. However, hydrophilic proteins present in large amounts in blood inhibit detection of other proteins in DBS by liquid chromatography-mass spectrometry (LC-MS/MS) without preenrichment. Sodium carbonate precipitation (SCP) can concentrate hydrophobic proteins from DBS and effectively remove soluble hydrophilic proteins. Furthermore, SCP combination with data-independent acquisition (DIA) for quantitative LC-MS/MS enhanced the proteome analysis sensitivity and quantification limits. In this protocol, we have described in detail a simple preenrichment method using SCP and a deep proteome analysis method for LC-MS/MS data using DIA.Entities:
Keywords: Clinical proteomics; Data-independent acquisition; Dried blood spots; Newborn screening; Sodium carbonate
Mesh:
Substances:
Year: 2022 PMID: 34905164 DOI: 10.1007/978-1-0716-1936-0_4
Source DB: PubMed Journal: Methods Mol Biol ISSN: 1064-3745