The His-Gly motif of acid-sensing ion channels resides in a reentrant 'loop' implicated in gating and ion selectivity.
Yoder, N., Gouaux, E.(2020) Elife 9
- PubMed: 32496192 
- DOI: https://doi.org/10.7554/eLife.56527
- Primary Citation of Related Structures:  
6VTK, 6VTL - PubMed Abstract: 
Acid-sensing ion channels (ASICs) are proton-gated members of the epithelial sodium channel/degenerin (ENaC/DEG) superfamily of ion channels and are expressed throughout the central and peripheral nervous systems. The homotrimeric splice variant ASIC1a has been implicated in nociception, fear memory, mood disorders and ischemia ...