Additional file 2: of Calcium dysregulation, functional calpainopathy, and endoplasmic reticulum stress in sporadic inclusion body myositis AmiciDavid Pinal-FernandezIago MázalaDavi LloydThomas CorseAndrea Christopher-StineLisa MammenAndrew ChinEva 2017 Electronic Resource 2: The ratio of SERCA1 to SERCA2 protein is unaltered between groups (all P > 0.10), suggesting a lack of fiber-type specificity in the reduction of SERCA proteins. (DOC 50 kb)