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Title: Tumor necrosis factor stimulates multiple serine/threonine protein kinases in Swiss 3T3 and L929 cells. Implication of casein kinase-2 and extracellular signal-regulated kinases in the tumor necrosis factor signal transduction pathway
Authors: Van Lint, Johan ×
Agostinis, Patrizia
Vandevoorde, V
Haegeman, G
Fiers, Walter
Merlevede, Wilfried
Vandenheede, Jackie #
Issue Date: Dec-1992
Series Title: Journal of Biological Chemistry vol:267 issue:36 pages:25916-21
Abstract: Incubation of Swiss 3T3 or L929 cells with tumor necrosis factor (TNF) leads to the rapid stimulation of several cytosolic Ser/Thr kinases active toward myelin basic protein, the S6 peptide (RRLSSLR), the G peptide (SPQPSRRGSESSEE), and Kemptide (LRRASLG). This confirms the hypothesis that kinases other than protein kinases A and C may be involved in the TNF signal transduction. Chromatography on Mono Q resolved multiple kinase peaks with each substrate tested and moreover revealed a TNF-mediated casein kinase-2 activation in both cell lines, measurable with the specific RRREEESEEE peptide or with the G peptide. The TNF-stimulated myelin basic protein kinases-1 and -2 were identified as extracellular signal-regulated kinases-2 and -1, respectively, based on their elution pattern on Mono Q chromatography, their inactivation by protein phosphatase action, their reaction with phosphothreonine and phosphotyrosine antibodies, and by their migration on sodium dodecyl sulfate-polyacrylamide gel electrophoresis as 42- and 44-kDa proteins recognized by anti-extracellular signal-regulated kinase antibodies.
ISSN: 0021-9258
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Biochemistry Section (Medicine) (-)
Laboratory of Cell Death Research & Therapy
Laboratory of Protein Phosphorylation and Proteomics
× corresponding author
# (joint) last author

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