
pmid: 17274988
Activation of the neuronal receptor tyrosine kinase ALK (anaplastic lymphoma kinase) promoted the neuron‐like differentiation of PC12 cells through specific activation of the ERK MAP‐kinase pathway. However, the nature of primary signaling events initiated is still poorly documented. Here, we established that Shc and FRS2 adaptors were recruited and phosphorylated following antibody‐based ALK activation. We further demonstrated that Shc was recruited to the consensus phosphotyrosine site NPTpY1507 and FRS2 was likely recruited to a novel non‐orthodox phosphotyrosine site within ALK. Finally, we characterized a functional role for Shc and likely FRS2 in ALK‐dependant MAP‐kinase activation and neuronal differentiation of PC12 cells. These findings hence open attractive perspectives concerning specific characteristics of ALK in the control of the mechanisms driving neuronal differentiation.
Shc, Molecular Sequence Data, FGF receptor substrate 2, PC12 Cells, Anaplastic lymphoma kinase, Animals, Humans, Anaplastic Lymphoma Kinase, Amino Acid Sequence, Phosphorylation, Phosphotyrosine, Adaptor Proteins, Signal Transducing, Mitogen-Activated Protein Kinase 1, Neurons, Mitogen-Activated Protein Kinase 3, Neurite outgrowth, PC12 cells, Membrane Proteins, Cell Differentiation, Mitogen-activated protein kinase, Protein-Tyrosine Kinases, Protein Structure, Tertiary, Enzyme Activation, Protein Transport, Phenotype, Protein Binding
Shc, Molecular Sequence Data, FGF receptor substrate 2, PC12 Cells, Anaplastic lymphoma kinase, Animals, Humans, Anaplastic Lymphoma Kinase, Amino Acid Sequence, Phosphorylation, Phosphotyrosine, Adaptor Proteins, Signal Transducing, Mitogen-Activated Protein Kinase 1, Neurons, Mitogen-Activated Protein Kinase 3, Neurite outgrowth, PC12 cells, Membrane Proteins, Cell Differentiation, Mitogen-activated protein kinase, Protein-Tyrosine Kinases, Protein Structure, Tertiary, Enzyme Activation, Protein Transport, Phenotype, Protein Binding
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