Molecular mechanism and biological functions of c-Jun N-terminal kinase signalling via the c-Jun transcription factor

Dunn, C., Wiltshire, C., MacLaren, A. and Gillespie, D. (2002) Molecular mechanism and biological functions of c-Jun N-terminal kinase signalling via the c-Jun transcription factor. Cellular Signalling, 14(7), pp. 585-593. (doi:10.1016/S0898-6568(01)00275-3)

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Abstract

The regulation of c-Jun transcriptional activity by Jun N-terminal kinase (JNK) has become a paradigm for understanding how mitogen-activated protein (MAP) kinase signalling pathways elicit specific changes in gene transcription through selective phosphorylation of nuclear transcription factors. Selective phosphorylation of c-Jun by JNK is determined by a specific docking motif in c-Jun, the delta region, which enables JNK to associate physically with c-Jun. Analogous MAP kinase docking motifs have subsequently been found in several other transcription factors, indicating that this is a general mechanism for ensuring specificity of signal transduction. Genetic and biochemical studies in mice, flies and cultured cells have provided evidence that signals relayed by JNK through c-Jun regulate a range of cellular processes including cell proliferation, tumourigenesis, apoptosis and embryonic development. Despite these advances, in most cases, the genes or programs of gene expression downstream of JNK and c-Jun, which control these processes. have not been defined. Here. we review the current understanding of the molecular basis and biological consequences of JNK signalling via c-Jun and highlight some of the mechanistic issues, which remain to be resolved.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Gillespie, Professor David
Authors: Dunn, C., Wiltshire, C., MacLaren, A., and Gillespie, D.
College/School:College of Medical Veterinary and Life Sciences > Institute of Cancer Sciences
Journal Name:Cellular Signalling
ISSN:0898-6568

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