Differential regulation of tetramerization of the AMPA receptor glutamate–gated ion channel by auxiliary subunits

Certain, Noele; Gan, Quan; Bennett, Joseph; Hsieh, Helen; Wollmuth, Lonnie P.

doi:10.1016/j.jbc.2023.105227

Journal of Biological Chemistry

2023

DOI: 10.1016/j.jbc.2023.105227

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Differential regulation of tetramerization of the AMPA receptor glutamate–gated ion channel by auxiliary subunits

Noele Certain,

Quan Gan,

Joseph Bennett

et al.

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2024

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Cited by 2 publications

References 122 publications

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Structural dynamics in α-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid receptor gating

Gonzalez,

Jayaraman

2024

Current Opinion in Structural Biology

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Structural dynamics in α-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid receptor gating

Gonzalez,

Jayaraman

2024

Current Opinion in Structural Biology

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The Role of Cornichons in the Biogenesis and Functioning of Monovalent-Cation Transport Systems

Papoušková,

Černá,

Radová

et al. 2024

Physiol Res

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Monovalent-cation homeostasis, crucial for all living cells, is ensured by the activity of various types of ion transport systems located either in the plasma membrane or in the membranes of organelles. A key prerequisite for the functioning of ion-transporting proteins is their proper trafficking to the target membrane. The cornichon family of COPII cargo receptors is highly conserved in eukaryotic cells. By simultaneously binding their cargoes and a COPII-coat subunit, cornichons promote the incorporation of cargo proteins into the COPII vesicles and, consequently, the efficient trafficking of cargoes via the secretory pathway. In this review, we summarize current knowledge about cornichon proteins (CNIH/Erv14), with an emphasis on yeast and mammalian cornichons and their role in monovalent-cation homeostasis. Saccharomyces cerevisiae cornichon Erv14 serves as a cargo receptor of a large portion of plasma-membrane proteins, including several monovalent-cation transporters. By promoting the proper targeting of at least three housekeeping ion transport systems, Na+, K+/H+ antiporter Nha1, K+ importer Trk1 and K+ channel Tok1, Erv14 appears to play a complex role in the maintenance of alkali-metal-cation homeostasis. Despite their connection to serious human diseases, the repertoire of identified cargoes of mammalian cornichons is much more limited. The majority of current information is about the structure and functioning of CNIH2 and CNIH3 as auxiliary subunits of AMPAR multi-protein complexes. Based on their unique properties and easy genetic manipulation, we propose yeast cells to be a useful tool for uncovering a broader spectrum of human cornichons´ cargoes.

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Differential regulation of tetramerization of the AMPA receptor glutamate–gated ion channel by auxiliary subunits

Cited by 2 publications

References 122 publications

Structural dynamics in α-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid receptor gating

Structural dynamics in α-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid receptor gating

The Role of Cornichons in the Biogenesis and Functioning of Monovalent-Cation Transport Systems

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