has result has context cleavage of ATF6-alpha by S1P cleavage of ATF6-alpha by S1P [ER stress] Cleavage of ATF6-alpha by S1P is a subtype of proteolysis: A process in which ATF6-alpha is cleaved by endopeptidase S1P( MBTPS1). This entity is a specific course-dependent process. This process can constitute the course of ER stress. PMID:10564271 PMID:11163209 PMID:15299016 Reactome:R-HSA-381135 http://purl.obolibrary.org/obo/HINO_0008875 cleavage of ATF6-alpha by S2P [ER stress] endoplasmic reticulum stress [toxic course] ER stress dependent process (molecular level)