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Developmental Biology

University of Massachusetts Medical School

Signal transduction

Articles 1 - 2 of 2

Full-Text Articles in Molecular Biology

Requirement Of Jip Scaffold Proteins For Nmda-Mediated Signal Transduction, Norman J. Kennedy, Gilles Martin, Anka G. Ehrhardt, Julie Cavanagh-Kyros, Chia-Yi Kuan, Pasko Rakic, Richard A. Flavell, Steven N. Treistman, Roger J. Davis Sep 2007

Requirement Of Jip Scaffold Proteins For Nmda-Mediated Signal Transduction, Norman J. Kennedy, Gilles Martin, Anka G. Ehrhardt, Julie Cavanagh-Kyros, Chia-Yi Kuan, Pasko Rakic, Richard A. Flavell, Steven N. Treistman, Roger J. Davis

Davis Lab Publications

JIP scaffold proteins are implicated in the regulation of protein kinase signal transduction pathways. To test the physiological role of these scaffold proteins, we examined the phenotype of compound mutant mice that lack expression of JIP proteins. These mice were found to exhibit severe defects in N-methyl-D-aspartic acid (NMDA) receptor function, including decreased NMDA-evoked current amplitude, cytoplasmic Ca(++), and gene expression. The decreased NMDA receptor activity in JIP-deficient neurons is associated with reduced tyrosine phosphorylation of NR2 subunits of the NMDA receptor. JIP complexes interact with the SH2 domain of cFyn and may therefore promote tyrosine phosphorylation and activity of ...


A Novel, Mitogen-Activated Nuclear Kinase Is Related To A Drosophila Developmental Regulator, Gerald V. Denis, Michael R. Green Feb 1996

A Novel, Mitogen-Activated Nuclear Kinase Is Related To A Drosophila Developmental Regulator, Gerald V. Denis, Michael R. Green

Open Access Articles

Although the ultimate targets of many signal transduction pathways are nuclear transcription factors, the vast majority of known protein kinases are cytosolic. Here, we report on a novel human kinase that is present exclusively in the nucleus. Kinase activity is increased upon cellular proliferation and is markedly elevated in patients with acute and chronic lymphocytic leukemias. We have identified a human gene that encodes this nuclear kinase and find that it is closely related to Drosophila female sterile homeotic (fsh), a developmental regulator with no known biochemical activity. Collectively, these results suggest that this nuclear kinase is a component of ...