ArticleProtein expression and purification2016
Expression and purification of the alpha subunit of the epithelial sodium channel, ENaC.
Article in Protein expression and purification, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
3 citing papers in PubMed.
- Differential Assembly of Native Epithelial Sodium Channel Complexes Across Mouse Epithelial Tissues.Kidney360 · 2026Article
- Developmentally-regulated post-apocrine cell death ofFrontiers in cell and developmental biology · 2026Article
- Modifying Baculovirus Expression Vectors to Produce Secreted Plant Proteins in Insect Cells.Journal of visualized experiments : JoVE · 2018Article
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Authors and funding
6 authors.
Funding
Abstract
The epithelial sodium channel (ENaC) plays a critical role in maintaining Na(+) homeostasis in various tissues throughout the body. An understanding of the structure of the ENaC subunits has been developed from homology modeling based on the related acid sensing ion channel 1 (ASIC1) protein structure, as well as electrophysiological approaches. However, ENaC has several notable functional differences compared to ASIC1, thereby providing justification for determination of its three-dimensional structure. Unfortunately, this goal remains elusive due to several experimental challenges. Of the subunits that comprise a physiological hetero-trimeric αβγENaC, the α-subunit is unique in that it is capable of forming a homo-trimeric structure that conducts Na(+) ions. Despite functional and structural interest in αENaC, a key factor complicating structural studies has been its interaction with multiple other proteins, disrupting its homogeneity. In order to address this issue, a novel protocol was used to reduce the number of proteins that associate and co-purify with αENaC. In this study, we describe a novel expression system coupled with a two-step affinity purification approach using NiNTA, followed by a GFP antibody column as a rapid procedure to improve the purity and yield of rat αENaC.
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