| Literature DB >> 22462785 |
Feng Yang1, Yufeng Shen, David G Camp, Richard D Smith.
Abstract
Orthogonal high-resolution separations are critical for attaining improved analytical dynamic range and protein coverage in proteomic measurements. High-pH reversed-phase liquid chromatography (RPLC), followed by fraction concatenation, affords better peptide analysis than conventional strong cation-exchange chromatography applied for 2D proteomic analysis. For example, concatenated high-pH RPLC increased identification of peptides (by 1.8-fold) and proteins (by 1.6-fold) in shotgun proteomics analyses of a digested human protein sample. Additional advantages of high-pH RPLC with fraction concatenation include improved protein sequence coverage, simplified sample processing and reduced sample losses, making this an attractive alternative to strong cation-exchange chromatography in conjunction with second-dimension low-pH RPLC for 2D proteomics analyses.Entities:
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Year: 2012 PMID: 22462785 PMCID: PMC3337716 DOI: 10.1586/epr.12.15
Source DB: PubMed Journal: Expert Rev Proteomics ISSN: 1478-9450 Impact factor: 3.940