Routing MAP Kinase Cascades
@article{Elion1998RoutingMK, title={Routing MAP Kinase Cascades}, author={Elaine A. Elion}, journal={Science}, year={1998}, volume={281}, pages={1625 - 1626} }
Cells need to convey information from signals on their surface to a variety of intracellular targets, including transcription factors, contractile proteins, and enzymes. To do so efficiently, they construct information pathways with enzymes called kinases, using the same enzymes over and over. But what prevents cross talk between pathways? In her Perspective, Elion discusses new results in this issue by
Whitmarsh
et al.
and
Schaeffer
et al., who identify proteins that act as scaffolds in…
142 Citations
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The underlying biochemical mechanisms through which specificity is generated during signal transduction are addressed, and the means by which signaling molecules may act in combination to generate complex biological responses are pursued.
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This review of recent advances in understanding the regulation of MAPK cascades and the roles of MAP kinases and their regulators in development and in immune responses is summarized.
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In conclusion, elucidating the activation status of the MAPK pathways may be a method to identify patients at risk for systemic inflammatory response syndrome/multiple organ dysfunction syndrome and manipulating the proper pathways may improve patients' outcomes.
References
SHOWING 1-10 OF 17 REFERENCES
MAP kinase kinase kinase, MAP kinase kinase and MAP kinase.
- Biology, Computer ScienceCurrent opinion in genetics & development
- 1994
A mammalian scaffold complex that selectively mediates MAP kinase activation.
- Biology, ChemistryScience
- 1998
Data establish that a mammalian scaffold protein can mediate activation of a MAP kinase signaling pathway and selectively enhanced JNK activation by the MLK signaling pathway.
Signal transduction by the c-Jun N-terminal kinase (JNK)--from inflammation to development.
- BiologyCurrent opinion in cell biology
- 1998
Ultrasensitivity in the mitogen-activated protein kinase cascade.
- BiologyProceedings of the National Academy of Sciences of the United States of America
- 1996
It is demonstrated that the cascade arrangement has unexpected consequences for the dynamics of MAPK signaling, and MAPK is predicted to behave like a highly cooperative enzyme, even though it was not assumed that any of the enzymes in the cascade were regulated cooperatively.
The MAP kinase Fus3 associates with and phosphorylates the upstream signaling component Ste5.
- BiologyGenes & development
- 1994
Evidence is presented for a novel mechanism of Fus3 activation that involves a direct association with Ste5, a protein not predicted to interact with Fus 3, and the possibility that Ste5 promotes signal transduction by tethering FUS3 to its activating protein kinase(s).
Ste5 tethers multiple protein kinases in the MAP kinase cascade required for mating in S. cerevisiae
- BiologyCell
- 1994
Yeast MEK-dependent signal transduction: response thresholds and parameters affecting fidelity
- BiologyMolecular and cellular biology
- 1995
Ste7p and Mkk1p are MEK (MAPK/ERK kinase) family members that function in the mating and cell integrity signal transduction pathways in Saccharomyces cerevisiae and serine-to-proline substitutions at analogous positions were recovered by independent genetic screens, suggesting that Ste5p contributes to Ste7p specificity.