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Université de Fribourg

Protein glutaminylation is a yeast-specific posttranslational modification of elongation factor 1A

Jank, Thomas ; Belyi, Yury ; Wirth, Christophe ; Rospert, Sabine ; Hu, Zehan ; Dengjel, Jörn ; Tzivelekidis, Tina ; Andersen, Gregers Rom ; Hunte, Carola ; Schlosser, Andreas ; Aktories, Klaus

In: Journal of Biological Chemistry, 2017, vol. 292, no. 39, p. 16014–16023

Ribosomal translation factors are fundamental for protein synthesis and highly conserved in all kingdoms of life. The essential eukaryotic elongation factor 1A (eEF1A) delivers aminoacyl tRNAs to the A-site of the translating 80S ribosome. Several studies have revealed that eEF1A is posttranslationally modified. Using MS analysis, site-directed mutagenesis, and X-ray structural data analysis of...

Université de Fribourg

Phospho-proteomic analyses of B-Raf protein complexes reveal new regulatory principles

Eisenhardt, Anja E. ; Sprenger, Adrian ; Röring, Michael ; Herr, Ricarda ; Weinberg, Florian ; Köhler, Martin ; Braun, Sandra ; Orth, Joachim ; Diedrich, Britta ; Lanner, Ulrike ; Tscherwinski, Natalja ; Schuster, Simon ; Dumaz, Nicolas ; Schmidt, Enrico ; Baumeister, Ralf ; Schlosser, Andreas ; Dengjel, Jörn ; Brummer, Tilman

In: Oncotarget, 2016, vol. 7, no. 18, p. 26628–26652

B-Raf represents a critical physiological regulator of the Ras/RAF/MEK/ERK-pathway and a pharmacological target of growing clinical relevance, in particular in oncology. To understand how B-Raf itself is regulated, we combined mass spectrometry with genetic approaches to map its interactome in MCF-10A cells as well as in B-Raf deficient murine embryonic fibroblasts (MEFs) and B-Raf/Raf-1...

2 results 1