Sigrid Noreng, Richard Posert ... Isabelle Baconguis
The in-depth structural and functional work provide a deeper understanding as to how the epithelial sodium channel is a heteromeric ion channel that is regulated by Na+ and proteolysis.
Nandish Khanra, Patricia MGE Brown ... Joel R Meyerson
Structures of the GluK2/K5 kainate receptor reveal the heteromer architecture and how the receptor organizes in apo, antagonist-bound, and desensitized states.
Christian JG Tessier, Raymond M Sturgeon ... Corrie JB daCosta
Reconstructed ancestral muscle-type acetylcholine receptor β-subunits readily form homopentameric ion channels that open spontaneously, and display functional hallmarks of the modern-day heteropentameric receptor despite being devoid of canonical agonist-binding sites.
Soluble fragments cleaved from the N-terminus of PC-1 activate the PC-1/PC-2 heteromeric polycystin channel, describing for the first time that the N-terminus itself is an endogenous ligand.
The basis for small-molecule block, insights into gating, and an unexpected architectural role for the lipid membrane are revealed in structures of the volume regulated anion channel LRRC8A.
The cryo-electron microscopy structures of an LRRC8C chimera with native channel properties reveal the diverse oligomeric assembly and suggest that lipids may play a role in gating in volume-regulated anion channels.
Two acid-sensing members of the degenerin/epithelial sodium channel family play distinct roles in controlling different aspects of rhythmic proton and calcium oscillations in the nematode intestine.