Vol. 153, No. 2 | 10.1085/jgp.202012568 | January 07, 2021

During production of this article, we inadvertently omitted an image from the Supplemental text. The beginning of the Supplemental text should have appeared as below. The error only exists in PDFs downloaded before March 9, 2021.

Let’s have a function f(t) that describes the kinetics of a Ca2+ transient:
$f(t)=(1−e−tτοn)•e−tτoff⋅$