title: A cytoplasmic inhibitor of the JNK signal transduction pathway.
abstract: The c-Jun amino-terminal kinase (JNK) is a member of the stress-activated group of mitogen-activated protein (MAP) kinases that are implicated in the control of cell growth. A murine cytoplasmic protein that binds specifically to JNK [the JNK interacting protein-1 (JIP-1)] was characterized and cloned. JIP-1 caused cytoplasmic retention of JNK and inhibition of JNK-regulated gene expression. In addition, JIP-1 suppressed the effects of the JNK signaling pathway on cellular proliferation, including transformation by the Bcr-Abl oncogene. This analysis identifies JIP-1 as a specific inhibitor of the JNK signal transduction pathway and establishes protein targeting as a mechanism that regulates signaling by stress-activated MAP kinases.
authors.affiliation: Howard Hughes Medical Institute and Program in Molecular Medicine, Department of Biochemistry and Molecular Biology, University of Massachusetts Medical School, 373 Plantation Street, Worcester, MA 01605, USA.
authors.forename: M
authors.initials: M
authors.lastname: Dickens
authors.forename: J S
authors.initials: JS
authors.lastname: Rogers
authors.forename: J
authors.initials: J
authors.lastname: Cavanagh
authors.forename: A
authors.initials: A
authors.lastname: Raitano
authors.forename: Z
authors.initials: Z
authors.lastname: Xia
authors.forename: J R
authors.initials: JR
authors.lastname: Halpern
authors.forename: M E
authors.initials: ME
authors.lastname: Greenberg
authors.forename: C L
authors.initials: CL
authors.lastname: Sawyers
authors.forename: R J
authors.initials: RJ
authors.lastname: Davis
mesh_terms: D051698:Activating Transcription Factor 2; D000818:Animals; D019556:COS Cells; D017871:Calcium-Calmodulin-Dependent Protein Kinases / Q000378:metabolism*; D002352:Carrier Proteins / Q000737:chemistry / Q000378:metabolism*; D002467:Cell Nucleus / Q000378:metabolism; D002471:Cell Transformation, Neoplastic; D002478:Cells, Cultured; D003001:Cloning, Molecular; D017362:Cyclic AMP Response Element-Binding Protein / Q000378:metabolism; D003593:Cytoplasm / Q000378:metabolism; D016044:Fusion Proteins, bcr-abl / Q000378:metabolism; D005786:Gene Expression Regulation; D048031:JNK Mitogen-Activated Protein Kinases; D048056:Mitogen-Activated Protein Kinase 9; D020928:Mitogen-Activated Protein Kinases; D008969:Molecular Sequence Data; D010766:Phosphorylation; D011494:Protein Kinases / Q000378:metabolism; D016755:Proto-Oncogene Proteins c-jun / Q000378:metabolism; D011993:Recombinant Fusion Proteins / Q000378:metabolism; D015398:Signal Transduction; D014157:Transcription Factors / Q000378:metabolism; D015533:Transcriptional Activation; D014162:Transfection
chemical_list: D051698:Activating Transcription Factor 2; D002352:Carrier Proteins; D017362:Cyclic AMP Response Element-Binding Protein; D016755:Proto-Oncogene Proteins c-jun; D011993:Recombinant Fusion Proteins; D014157:Transcription Factors; D011494:Protein Kinases; D048056:Mitogen-Activated Protein Kinase 9; D016044:Fusion Proteins, bcr-abl; D017871:Calcium-Calmodulin-Dependent Protein Kinases; D048031:JNK Mitogen-Activated Protein Kinases; D020928:Mitogen-Activated Protein Kinases