At the intersection of sulfur redox chemistry, cellular signal transduction and proteostasis: A useful perspective from which to understand and treat neurodegeneration

2022 ◽  
Vol 178 ◽  
pp. 161-173
Author(s):  
Kenneth Hensley ◽  
Alexis Danekas ◽  
William Farrell ◽  
Tiera Garcia ◽  
Wafa Mehboob ◽  
...  
Keyword(s):  
Signal Transduction ◽  
Redox Chemistry ◽  
Cellular Signal Transduction ◽  
Cellular Signal

Investigating lipid signalling: it's all about finding the right PI

2008 ◽  
Vol 413 (1) ◽  
pp. e5-e6 ◽  
Author(s):  
Erik Nielsen
Keyword(s):  
Signal Transduction ◽  
Signal Transduction Pathways ◽  
Lipid Kinase ◽  
Phosphatase Activities ◽  
Cellular Signal Transduction ◽  
Lipid Signalling ◽  
Lipid Phosphatase ◽  
Biochemical Journal ◽  
Cellular Signal ◽  
The Right

Phosphoinositides are well-known components of cellular signal transduction pathways and, more recently, have been shown to play important roles in organelle identity and targeting determinants for various cytosolic proteins. Conversion of PtdIns into its various phosphorylated derivatives, such as PtdIns4P and PtdIns(4,5)P2, is accomplished by a series of distinct lipid kinase and lipid phosphatase activities that are localized to specific subcellular membranes. As a result, production of distinct PtdIns forms is thought to be largely dependent on the access of these enzymes to their PtdIns or PtdInsP substrates. Interestingly, an investigation of two different PIS (PtdIns synthase) isoforms by Lofke et al. in this issue of the Biochemical Journal now indicates that the ability of PtdIns to be converted into downstream PtdInsPs may depend upon the PIS isoform from which it was synthesized.

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