Anti-SPP antibody - C-terminal,Abcam,AB190253

Target data Catalyzes intramembrane proteolysis of some signal peptides after they have been cleaved from a preprotein, resulting in the release of the fragment from the ER membrane into the cytoplasm. Required to generate lymphocyte cell surface (HLA-E) epitopes derived from MHC class I signal peptides (PubMed : 11714810). May be necessary for the removal of the signal peptide that remains attached to the hepatitis C virus core protein after the initial proteolytic processing of the polyprotein (PubMed : 12145199). Involved in the intramembrane cleavage of the integral membrane protein PSEN1 (PubMed : 11714810, PubMed : 12077416, PubMed : 14741365). Cleaves the integral membrane protein XBP1 isoform 1 in a DERL1/RNF139-dependent manner (PubMed : 25239945). May play a role in graft rejection (By similarity). See full target information HM13