Complex alteration of NMDA receptors in transgenic Huntington's disease mouse brain: analysis of mRNA and protein expression, plasma membrane association, interacting proteins, and phosphorylation

2003 ◽  
Vol 14 (3) ◽  
pp. 624-636 ◽  
Author(s):  
Ruth Luthi-Carter ◽  
Barbara L Apostol ◽  
Anthone W Dunah ◽  
Molly M DeJohn ◽  
Laurie A Farrell ◽  
...  
2021 ◽  
pp. 1-13
Author(s):  
Karen A. Sap ◽  
Arzu Tugce Guler ◽  
Aleksandra Bury ◽  
Dick Dekkers ◽  
Jeroen A.A. Demmers ◽  
...  

Background: Huntington’s disease is a neurodegenerative disorder caused by a CAG expansion in the huntingtin gene, resulting in a polyglutamine expansion in the ubiquitously expressed mutant huntingtin protein. Objective: Here we set out to identify proteins interacting with the full-length wild-type and mutant huntingtin protein in the mice cortex brain region to understand affected biological processes in Huntington’s disease pathology. Methods: Full-length huntingtin with 20 and 140 polyQ repeats were formaldehyde-crosslinked and isolated via their N-terminal Flag-tag from 2-month-old mice brain cortex. Interacting proteins were identified and quantified by label-free liquid chromatography-mass spectrometry (LC-MS/MS). Results: We identified 30 interactors specific for wild-type huntingtin, 14 interactors specific for mutant huntingtin and 14 shared interactors that interacted with both wild-type and mutant huntingtin, including known interactors such as F8a1/Hap40. Syt1, Ykt6, and Snap47, involved in vesicle transport and exocytosis, were among the proteins that interacted specifically with wild-type huntingtin. Various other proteins involved in energy metabolism and mitochondria were also found to associate predominantly with wild-type huntingtin, whereas mutant huntingtin interacted with proteins involved in translation including Mapk3, Eif3h and Eef1a2. Conclusion: Here we identified both shared and specific interactors of wild-type and mutant huntingtin, which are involved in different biological processes including exocytosis, vesicle transport, translation and metabolism. These findings contribute to the understanding of the roles that wild-type and mutant huntingtin play in a variety of cellular processes both in healthy conditions and Huntington’s disease pathology.


2004 ◽  
Vol 91 (2) ◽  
pp. 413-422 ◽  
Author(s):  
Jonathan H. Fox ◽  
David S. Barber ◽  
Bhupinder Singh ◽  
Birgit Zucker ◽  
Mary K. Swindell ◽  
...  

2013 ◽  
Vol 4 (4) ◽  
pp. e595-e595 ◽  
Author(s):  
V Brito ◽  
M Puigdellívol ◽  
A Giralt ◽  
D del Toro ◽  
J Alberch ◽  
...  

2011 ◽  
Vol 1367 ◽  
pp. 130-145 ◽  
Author(s):  
D. Dardou ◽  
D. Dassesse ◽  
L. Cuvelier ◽  
T. Deprez ◽  
M. De Ryck ◽  
...  

2006 ◽  
Vol 84 (6) ◽  
pp. 912-917 ◽  
Author(s):  
Ray Truant ◽  
Randy Atwal ◽  
Anjee Burtnik

Huntington’s disease is a progressive neurodegenerative genetic disorder that is caused by a CAG triplet-repeat expansion in the first exon of the IT15 gene. This CAG expansion results in polyglutamine expansion in the 350 kDa huntingtin protein. The exact function of huntingtin is unknown. Understanding the pathological triggers of mutant huntingtin, and distinguishing the cause of disease from downstream effects, is critical to designing therapeutic strategies and defining long- and short-term goals of therapy. Many studies that have sought to determine the functions of huntingtin by determining huntingtin’s protein–protein interactions have been published. Through these studies, huntingtin has been seen to interact with a large number of proteins, and is likely a scaffolding protein for protein–protein interactions. Recently, using imaging, integrative proteomics, and cell biology, huntingtin has been defined as a membrane-associated protein, with activities related to axonal trafficking of vesicles and mitochondria. These functions have also been attributed to some huntingtin-interacting proteins. Additionally, discoveries of a membrane association domain and a palmitoylation site in huntingtin reinforce the fact that huntingtin is membrane associated. In Huntington’s disease mouse and fly models, axonal vesicle trafficking is inhibited, and lack of proper uptake of neurotrophic factors may be an important pathological trigger leading to striatal cell death in Huntington’s disease. Here we discuss recent advances from many independent groups and methodologies that are starting to resolve the elusive function of huntingtin in vesicle transport, and evidence that suggests that huntingtin may be directly involved in membrane interactions.


2018 ◽  
Vol 2 (1) ◽  
pp. 1-13
Author(s):  
Mohamed Megahed ◽  
Mona El-Azab ◽  
Moushira El Sayed ◽  
Yasser Moustafa

PLoS ONE ◽  
2012 ◽  
Vol 7 (10) ◽  
pp. e47240 ◽  
Author(s):  
Wei-na Cong ◽  
Huan Cai ◽  
Rui Wang ◽  
Caitlin M. Daimon ◽  
Stuart Maudsley ◽  
...  

Neuroscience ◽  
2013 ◽  
Vol 236 ◽  
pp. 345-372 ◽  
Author(s):  
H. Hörtnagl ◽  
R.O. Tasan ◽  
A. Wieselthaler ◽  
E. Kirchmair ◽  
W. Sieghart ◽  
...  

2010 ◽  
Vol 1331 ◽  
pp. 58-73 ◽  
Author(s):  
Christian Ansgar Hundahl ◽  
Gregg C. Allen ◽  
Jens Hannibal ◽  
Katrine Kjaer ◽  
Jens F. Rehfeld ◽  
...  

Neuron ◽  
2010 ◽  
Vol 65 (2) ◽  
pp. 145-147 ◽  
Author(s):  
Michael S. Levine ◽  
Carlos Cepeda ◽  
Véronique M. André

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