Abstract:
:Organellar proteomics aims to describe the full complement of proteins of subcellular structures and organelles. When compared with whole-cell or whole-tissue proteomes, the more focused results from subcellular proteomic studies have yielded relatively simpler datasets from which biologically relevant information can be more easily extracted. In every proteomic study, the quality and purity of the biological sample to be investigated is of the utmost importance for a successful analysis. In organellar proteomics, one of the most crucial steps in sample preparation is the initial subcellular fractionation procedure by which the enriched preparation of the sought-after organelle is obtained. In nearly all available organellar proteomic studies, the method of choice relies on one or several rounds of density-based gradient centrifugation. Although this method has been recognized for decades as yielding relatively pure preparations of organelles, recent technological advances in protein separation and identification can now reveal even minute amounts of contamination, which in turn can greatly complicate data interpretation. The scope of this review focuses on recently published innovative complementary or alternative methods to perform subcellular fractionation, which can further refine the way in which sample preparation is accomplished in organellar proteomics.
journal_name
Expert Rev Proteomicsjournal_title
Expert review of proteomicsauthors
Gauthier DJ,Lazure Cdoi
10.1586/14789450.5.4.603subject
Has Abstractpub_date
2008-08-01 00:00:00pages
603-17issue
4eissn
1478-9450issn
1744-8387journal_volume
5pub_type
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