Three-dimensional peptide fractionation for highly sensitive nanoscale LC-based shotgun proteomic analysis of complex protein mixtures

Sricharan Bandhakavi, Todd W Markowski, Hongwei Xie, Timothy J Griffin

Research output: Chapter in Book/Report/Conference proceedingChapter

4 Citations (Scopus)

Abstract

To sensitively analyze complex protein mixtures by mass spectrometry-based shotgun proteomics, researchers have employed platforms that couple orthogonal peptide fractionation methods using nanoscale HPLC. Commonly used platforms have coupled either strong cation exchange (SCX) HPLC or preparative isoelectric focusing (IEF) with nanoscale reversed-phase (nanoRP) HPLC fractionation of peptides. Coupling two dimensions of peptide fractionation, prior to mass spectrometric analysis, increases the sensitivity for identifying low abundance proteins. However, the large dynamic range of protein abundance and high level of complexity of protein mixtures derived from many biological sources, such as bodily fluids, require additional steps of peptide fractionation. To address this shortcoming, we have developed a platform combining three dimensions of peptide fractionation as follows: (1) preparative IEF; (2) SCX HPLC; and (3) nanoRP HPLC. This platform significantly increases the sensitivity of shotgun proteomic analysis in complex protein mixtures. Here, we describe the implementation of this three-dimensional peptide fractionation platform for proteomic studies of complex mixtures.

Original languageEnglish (US)
Title of host publicationNanoproteomics
Subtitle of host publicationMethods and Protocols
EditorsSteven Toms, Robert Weil
Pages47-56
Number of pages10
DOIs
StatePublished - Nov 10 2011

Publication series

NameMethods in Molecular Biology
Volume790
ISSN (Print)1064-3745

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Firearms
Complex Mixtures
Proteomics
High Pressure Liquid Chromatography
Peptides
Proteins
Isoelectric Focusing
Cations
Mass Spectrometry
Research Personnel

Keywords

  • 2D-peptide fractionation
  • 3D-peptide fractionation
  • Nanoscale reversed-phase HPLC
  • Preparative isoelectric focusing
  • Shotgun proteomics
  • Strong cation exchange HPLC

Cite this

Bandhakavi, S., Markowski, T. W., Xie, H., & Griffin, T. J. (2011). Three-dimensional peptide fractionation for highly sensitive nanoscale LC-based shotgun proteomic analysis of complex protein mixtures. In S. Toms, & R. Weil (Eds.), Nanoproteomics: Methods and Protocols (pp. 47-56). (Methods in Molecular Biology; Vol. 790). https://doi.org/10.1007/978-1-61779-319-6_4

Three-dimensional peptide fractionation for highly sensitive nanoscale LC-based shotgun proteomic analysis of complex protein mixtures. / Bandhakavi, Sricharan; Markowski, Todd W; Xie, Hongwei; Griffin, Timothy J.

Nanoproteomics: Methods and Protocols. ed. / Steven Toms; Robert Weil. 2011. p. 47-56 (Methods in Molecular Biology; Vol. 790).

Research output: Chapter in Book/Report/Conference proceedingChapter

Bandhakavi, S, Markowski, TW, Xie, H & Griffin, TJ 2011, Three-dimensional peptide fractionation for highly sensitive nanoscale LC-based shotgun proteomic analysis of complex protein mixtures. in S Toms & R Weil (eds), Nanoproteomics: Methods and Protocols. Methods in Molecular Biology, vol. 790, pp. 47-56. https://doi.org/10.1007/978-1-61779-319-6_4
Bandhakavi S, Markowski TW, Xie H, Griffin TJ. Three-dimensional peptide fractionation for highly sensitive nanoscale LC-based shotgun proteomic analysis of complex protein mixtures. In Toms S, Weil R, editors, Nanoproteomics: Methods and Protocols. 2011. p. 47-56. (Methods in Molecular Biology). https://doi.org/10.1007/978-1-61779-319-6_4
Bandhakavi, Sricharan ; Markowski, Todd W ; Xie, Hongwei ; Griffin, Timothy J. / Three-dimensional peptide fractionation for highly sensitive nanoscale LC-based shotgun proteomic analysis of complex protein mixtures. Nanoproteomics: Methods and Protocols. editor / Steven Toms ; Robert Weil. 2011. pp. 47-56 (Methods in Molecular Biology).
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