Abstract:
:Bottom-up proteomics is a mass spectrometric (MS)-based approach for the characterization of peptides obtained from in-solution protein digestion. MS is favored over other methods for peptide and protein analysis because of its better sensitivity and high throughput. Inorganic ions and surfactants present in the sample or produced during tryptic digestion are detrimental in MS analysis and affect the proteome data, thus sample preparation for removal of these unwanted components has become essential. Here, we review 48 research papers on strategies for removal of salts and surfactants (in particular, SDS) prior to ESI-MS analysis in bottom-up proteomics from 2012 to 2016. The strategies were mostly based on SPE and membrane-based filter-aided sample preparation for salt and SDS removal, respectively. Some known limitations of SPE and filter-aided sample preparation procedures are that they can be time consuming, laborious, and require the use of organic solvents before a concentrated extract suitable for analysis is obtained. The development of faster analytical methods by reducing the sample preparation time and thereby, increasing sample throughput, and in a solvent-less and membrane-less operation, is a significant contribution to proteome research.
journal_name
Proteomicsjournal_title
Proteomicsauthors
Tubaon RM,Haddad PR,Quirino JPdoi
10.1002/pmic.201700011subject
Has Abstractpub_date
2017-10-01 00:00:00issue
20eissn
1615-9853issn
1615-9861journal_volume
17pub_type
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