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Comparison of fractionation proteomics for local SWATH library building

(2017) PROTEOMICS. 17(15-16).
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Abstract
For data-independent acquisition by means of sequential window acquisition of all theoretical fragment ion spectra (SWATH), a reference library of data-dependent acquisition (DDA) runs is typically used to correlate the quantitative data from the fragment ion spectra with peptide identifications. The quality and coverage of such a reference library is therefore essential when processing SWATH data. In general, library sizes can be increased by reducing the impact of DDA precursor selection with replicate runs or fractionation. However, these strategies can affect the match between the library and SWATH measurement, and thus larger library sizes do not necessarily correspond to improved SWATH quantification. Here, three fractionation strategies to increase local library size were compared to standard library building using replicate DDA injection: protein SDS-PAGE fractionation, peptide high-pH RP-HPLC fractionation and MS-acquisition gas phase fractionation. The impact of these libraries on SWATH performance was evaluated in terms of the number of extracted peptides and proteins, the match quality of the peptides and the extraction reproducibility of the transitions. These analyses were conducted using the hydrophilic proteome of differentiating human embryonic stem cells. Our results show that SWATH quantitative results and interpretations are affected by choice of fractionation technique. Data are available via ProteomeXchange with identifier PXD006190.
Keywords
DATA-INDEPENDENT ACQUISITION, MASS-SPECTROMETRY, QUANTITATIVE, PROTEOMICS, DIFFERENTIATION, OPTIMIZATION, CELLS, ITRAQ, Comparative study, Fractionation proteomics, hESC, Library building, SWATH-MS

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Chicago
Govaert, Elisabeth, Katleen Van Steendam, Sander Willems, Liesbeth Vossaert, Maarten Dhaenens, and Dieter Deforce. 2017. “Comparison of Fractionation Proteomics for Local SWATH Library Building.” Proteomics 17 (15-16).
APA
Govaert, Elisabeth, Van Steendam, K., Willems, S., Vossaert, L., Dhaenens, M., & Deforce, D. (2017). Comparison of fractionation proteomics for local SWATH library building. PROTEOMICS, 17(15-16).
Vancouver
1.
Govaert E, Van Steendam K, Willems S, Vossaert L, Dhaenens M, Deforce D. Comparison of fractionation proteomics for local SWATH library building. PROTEOMICS. 2017;17(15-16).
MLA
Govaert, Elisabeth, Katleen Van Steendam, Sander Willems, et al. “Comparison of Fractionation Proteomics for Local SWATH Library Building.” PROTEOMICS 17.15-16 (2017): n. pag. Print.
@article{8530232,
  abstract     = {For data-independent acquisition by means of sequential window acquisition of all theoretical fragment ion spectra (SWATH), a reference library of data-dependent acquisition (DDA) runs is typically used to correlate the quantitative data from the fragment ion spectra with peptide identifications. The quality and coverage of such a reference library is therefore essential when processing SWATH data. In general, library sizes can be increased by reducing the impact of DDA precursor selection with replicate runs or fractionation. However, these strategies can affect the match between the library and SWATH measurement, and thus larger library sizes do not necessarily correspond to improved SWATH quantification. Here, three fractionation strategies to increase local library size were compared to standard library building using replicate DDA injection: protein SDS-PAGE fractionation, peptide high-pH RP-HPLC fractionation and MS-acquisition gas phase fractionation. The impact of these libraries on SWATH performance was evaluated in terms of the number of extracted peptides and proteins, the match quality of the peptides and the extraction reproducibility of the transitions. These analyses were conducted using the hydrophilic proteome of differentiating human embryonic stem cells. Our results show that SWATH quantitative results and interpretations are affected by choice of fractionation technique. Data are available via ProteomeXchange with identifier PXD006190.},
  articleno    = {1700052},
  author       = {Govaert, Elisabeth and Van Steendam, Katleen and Willems, Sander and Vossaert, Liesbeth and Dhaenens, Maarten and Deforce, Dieter},
  issn         = {1615-9853},
  journal      = {PROTEOMICS},
  keyword      = {DATA-INDEPENDENT ACQUISITION,MASS-SPECTROMETRY,QUANTITATIVE,PROTEOMICS,DIFFERENTIATION,OPTIMIZATION,CELLS,ITRAQ,Comparative study,Fractionation proteomics,hESC,Library building,SWATH-MS},
  language     = {eng},
  number       = {15-16},
  pages        = {11},
  title        = {Comparison of fractionation proteomics for local SWATH library building},
  url          = {http://dx.doi.org/10.1002/pmic.201700052},
  volume       = {17},
  year         = {2017},
}

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