ATF6B and heart failure: Even though ATF6α plays protective roles in pathological settings such as those induced by ischemia/reperfusion damage in several organs [(Blackwood et al., 2019), and reviewed in (18)], synergistic effects between ATF6α and ATF6β have also been reported in development (Yamamoto et al., 2007) and cardiac failure settings (Correll et al., 2019).