Cell signalling requires efficient Ca2+ mobilization from intracellular stores through Ca2+ release channels, and it has been hypothesized that counter movement of ions across the sarcoplasmic reticulum neutralizes the transient negative potential generated by Ca2+ release. This paper identifies two trimeric intracellular cation channel subtypes that that could serve a critical role in such charge compensation.
- Masayuki Yazawa
- Christopher Ferrante
- Hiroshi Takeshima