Salvador-Gallego…García-Sáez {EMBO J 35: 389}

Bax assembly into rings and arcs in apoptotic mitochondria is linked to membrane pores. EMBO J. 2016 Feb 15;35(4):389-401. doi: 10.15252/embj.
During apoptosis, Bax assembles into full rings, arcs and lines, which are observed in discrete foci along mitochondria and are linked to permeabilization of the mitochondrial outer membrane.