Filter Retardation Assay for Detecting and Quantifying Polyglutamine Aggregates Using Lysates
Overview
Affiliations
Protein aggregation is a hallmark of several neurodegenerative diseases and is associated with impaired protein homeostasis. This imbalance is caused by the loss of the protein's native conformation, which ultimately results in its aggregation or abnormal localization within the cell. Using a model of polyglutamine diseases, we describe in detail the filter retardation assay, a method that captures protein aggregates in a cellulose acetate membrane and allows its detection and quantification by immunoblotting.
Glial-derived mitochondrial signals affect neuronal proteostasis and aging.
Bar-Ziv R, Dutta N, Hruby A, Sukarto E, Averbukh M, Alcala A Sci Adv. 2023; 9(41):eadi1411.
PMID: 37831769 PMC: 10575585. DOI: 10.1126/sciadv.adi1411.
Filter trapping protocol to detect aggregated proteins in human cell lines.
Chhipi-Shrestha J, Yoshida M, Iwasaki S STAR Protoc. 2022; 3(3):101571.
PMID: 35880124 PMC: 9307672. DOI: 10.1016/j.xpro.2022.101571.
Claesson K, Chew Y, Ecroyd H J Neurochem. 2022; 161(3):281-292.
PMID: 35170035 PMC: 9541147. DOI: 10.1111/jnc.15591.
Huntingtin Polyglutamine Fragments Are a Substrate for Hsp104 in Saccharomyces cerevisiae.
Wayne N, Dembny K, Pease T, Saba F, Zhao X, Masison D Mol Cell Biol. 2021; 41(11):e0012221.
PMID: 34424055 PMC: 8547424. DOI: 10.1128/MCB.00122-21.
The Proteasome Activators Blm10/PA200 Enhance the Proteasomal Degradation of N-Terminal Huntingtin.
Aladdin A, Yao Y, Yang C, Kahlert G, Ghani M, Kiraly N Biomolecules. 2020; 10(11).
PMID: 33233776 PMC: 7699873. DOI: 10.3390/biom10111581.