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Light Sheet-based Fluorescence Microscopy of Living or Fixed and Stained Tribolium castaneum Embryos

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The functionally diverse roles of tribbles.

Fiona Lohan¹, Karen Keeshan

¹Institute of Cancer Sciences, Paul O'Gorman Leukaemia Research Centre, University of Glasgow, 21 Shelley Road, Glasgow G12 0ZD, Scotland, UK.

Biochemical Society Transactions

|July 19, 2013

Summary

Tribbles, pseudokinases lacking kinase activity, function diversely. This review explores their roles as molecular adaptors, signaling mediators in MAPK cascades, and decoy kinases.

Area of Science:

Biochemistry
Molecular Biology
Cell Signaling

Background:

Tribbles are pseudokinases, lacking detectable kinase activity.
Their functional classification remains debated due to the absence of kinase function.
Proposed roles include protein degradation, signaling modulation, and decoy activity.

Purpose of the Study:

To review the functionally divergent roles of tribbles.
To elucidate their classification as molecular adaptors, signaling mediators, and decoy kinases.

Main Methods:

Literature review of tribble protein functions.
Analysis of proposed mechanisms of action.

Main Results:

Tribbles act as molecular adaptors, facilitating target protein degradation.

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They modulate mitogen-activated protein kinase (MAPK) signaling cascades.

Tribbles function as decoy kinases, interfering with active kinase function.

Conclusions:

Tribbles exhibit diverse functions beyond traditional kinase activity.
Understanding these roles is crucial for comprehending cellular regulation and signaling pathways.