Pierre Thibault

Accredited Professor

Contact Information

Institut de recherche en immunologie et cancérologie
Université de Montréal
Pavillon Marcelle-Coutu, bureau 2306-17
C.P. 6128, Succ. Centre-ville
Montréal (Québec)
H3C 3J7


T 514 343-6910
F 514 343-6843
Site web


Our research program focuses on the development and application of proteomics and bioanalytical mass spectrometry to the identification of trace-level proteins in complex cell extracts. Our research efforts bring a multidisciplinary team approach using methods and techniques from bioanalytical chemistry, protein chemistry, biochemistry and cellbiology.

More specifically, our research interests span from the development of cell fractionation methods and protein enrichment techniques for phospho- and glycoproteins to the coupling of multidimensional capillary liquid chromatography to mass spectrometry and its application to the identification of post-translational modifications (sites and stoechiometry). We are also developing chemometric and bioinformatics tools for data mining of peptides in complex protein digests. These different tools are used in proteomics research programs to gain further insights to complex cell biology paradigms such as organelle biogenesis (phagosome and endosome), cell signalling in cancer, and the identification of peptides presented by the major histocompatibility complexproteins.


  • J. Saba, E. Bonneil, C. Pomies, K. Eng, P.Thibault, “Enhanced Sensitivity in Proteomics Experiments Using FAIMS Coupled to a Hybrid Linear Ion Trap/Orbitrap Mass Spectrometer”, J. Proteome Res., 8, 3355–3366 (2009)
  • P. Drogaris, Y. Le Blanc, J. Fitzgerald, N. Lowndes, A. Verreault, P. Thibault, “Enhanced protein detection using a novel trapping mode on a hybrid quadrupole-linear ion trap Q-Trap)”, Anal. Chem., 81, 6300-6309 (2009)
  • M. Boutin, C. Berthelette, F. G. Gervais, M.-B. Scholand, J. Hoidal, M. F. Leppert, K. P. Bateman, P. Thibault, “High Sensitivity NanoLC-MS/MS Analysis of Urinary Desmosine and Isodesmosine”, Anal. Chem, 81, 1881-1887 (2009)
  • M. Trost, L. English, M. Courcelles, M. Desjardins, P. Thibault, “Deciphering the Phagosomal Proteome in Interferon-g Activated Macrophages”, Immunity, 30, 143-154 (2009)
  • Bendall S.C., Hughes C., Campbell J.L., Stewart MH, Pittock P., Liu S., Bonneil E., Thibault P., Bhatia M., Lajoie G.A., “An enhanced mass spectrometry approach reveals human embryonic stem cell growth factors in culture”, Mol. Cell. Proteomics, 8, 421-432 (2009)
  • M. Gharib, M. Marcantonio, S.G. Lehmann, M. Courcelles, S. Meloche, A. Verreault, P. Thibault, “Artifactual O-sulfation of silver-stained proteins: Implications for the assignment of phosphorylation and sulfation sites”, Mol. Cell. Proteomics, 8, 506-518 (2009)
  • P. Drogaris, H. Wurtele, H. Masumoto, A. Verreault, P. Thibault, “Comprehensive profiling of histone modifications using a label-free approach and its applications in determining structure-function relationships”, Anal. Chem, 80, 6698-6707 (2008)
  • A. Carrière, M. Cargnello, L.-A. Julien, H. Gao, E. Bonneil, P. Thibault, P. P. Roux, “Oncogenic MAPK Signaling Regulates mTORC1 Assembly by Promoting Raptor Phosphorylation via ERK and RSK”, Current Biol, 18, 1269-1277 (2008)
  • Y. Tang, M. A Holbert, H. Wurtele, K. Meeth, W. Rocha, M. Gharib, E. Jiang, P. Thibault, A.Verreault, P. A Cole, R. Marmorstein, “Fungal Rtt109 histone acetyltransferase is an unexpected structural homolog of metazoan p300/CBP”, Nature Struct. Mol. Biol., 15, 738-745 (2008)
  • M. Marcantonio, M. Trost, M. Courcelles, M. Desjardins, P. Thibault, “Combined enzymatic and data mining approaches for comprehensive phosphoproteome analyses; application to cell signaling events of interferon-γ stimulated macrophages”, Mol Cell Proteomics, 7, 645-660 (2008)
  • M.-H. Fortier, E. Caron, M.-P. Hardy, G. Voisin, S. Lemieux, C. Perreault, P. Thibault, “The MHC I immunopeptidome is moulded by the transcriptome”, J. Exp. Med., 205, 595-610 (2008)
  • C.A. Smith, K.M. Lau, Z. Rahmani, S. E. Dho, G. Brothers, Y. Min She, D. M. Berry, E. Bonneil, P. Thibault, F. Schweisguth, R. Le Borgne, C.J. McGlade, “aPKC-mediated phosphorylation regulates asymmetric membrane localization of the cell fate determinant Numb”, EMBO J., 26, 468-480 (2007)