IP3R activity increases frequency of RyR-mediated sparks by elevating dyadic Ca2+
J. Chung, A. Tilunaite, D. Ladd, H. Hunt, C. Soeller, E. J. Crampin, S. Johnston, H. Roderick, V. Rajagopal
The paper develops a mathematical model to show IP3R activity increases Ca2+ sparks by raising dyadic Ca2+ levels, which sensitizes RyRs but reduces JSR Ca2+ availability.
bioRxiv · Aug 13, 2020Biophysics