has part occurs in has result has context has agent endoplasmic reticulum apoptotic process [ER stress] ER stress dependent process endoplasmic reticulum stress [toxic course] changing calcium ion concentration in ER [ER stress] Changing calcium ion concentration in ER is a subtype of changing calcium ion concentration: A process that changes the calcium ion concentration in the endoplasmic reticulum (ER). This entity is a specific course-dependent process. This process can constitute the course of ER stress. PMID:16672378 PMID:23334697 changing calcium ion concentration in ER ritonavir [ER stress] lopinavir [ER stress] negative regulation of SERCA gene expression [ER stress] thapsigargin [ER stress]