Mass spectrometry-based shotgun proteomic analysis of C. elegans protein complexes.

Bryan R. Fonslow, James J. Moresco, Patricia G. Tu, Antti P. Aalto, Amy E. Pasquinelli, Andrew G. Dillin, John R. Yates

Research output: Contribution to journalReview article

7 Citations (Scopus)

Abstract

Mass spectrometry (MS)-based shotgun proteomics is an enabling technology for the study of C. elegans proteins. When coupled with co-immunoprecipitation (CoIP), new interactions and functions among proteins can be discovered. We provide a general background on protein complexes and methods for their analysis, along with the lifecycle and interaction types of proteins that ultimately define the identifiable components of protein complexes. We highlight traditional biochemical methods to evaluate whether the complexes are sufficiently pure and abundant for analysis with shotgun proteomics. We present two CoIP-MS case studies of protein complexes from C. elegans, using both endogenous and fusion protein antibodies to illustrate the important aspects of their analyses. We discuss results from mass spectrometers with differences in mass accuracy and resolution, along with the relevant information that can be extracted from the data generated, such as protein relative abundance, post-translational modifications, and identification confidence. Finally, we illustrate how comparative analysis can reveal candidate binding partners for biological follow-up and validation. This chapter should act as a complement and extension to the WormBook chapter Biochemistry and molecular biology, which describes tandem affinity purification (TAP) of protein complexes for analysis by mass spectrometry.

Original languageEnglish (US)
Pages (from-to)1-18
Number of pages18
JournalWormBook : the online review of C. elegans biology
DOIs
StatePublished - 2014
Externally publishedYes

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Caenorhabditis elegans Proteins
Firearms
Proteomics
Mass Spectrometry
Proteins
Immunoprecipitation
Post Translational Protein Processing
Biochemistry
Molecular Biology
Technology
Antibodies

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Mass spectrometry-based shotgun proteomic analysis of C. elegans protein complexes. / Fonslow, Bryan R.; Moresco, James J.; Tu, Patricia G.; Aalto, Antti P.; Pasquinelli, Amy E.; Dillin, Andrew G.; Yates, John R.

In: WormBook : the online review of C. elegans biology, 2014, p. 1-18.

Research output: Contribution to journalReview article

Fonslow, Bryan R. ; Moresco, James J. ; Tu, Patricia G. ; Aalto, Antti P. ; Pasquinelli, Amy E. ; Dillin, Andrew G. ; Yates, John R. / Mass spectrometry-based shotgun proteomic analysis of C. elegans protein complexes. In: WormBook : the online review of C. elegans biology. 2014 ; pp. 1-18.
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