SDF2L1 and inflammatory bowel disease: Notably, among individual genes relevant for UPR and ER stress, we identified SDF2L1 (an IBD GWAS related gene that was DE in both inflamed and non-inflamed UC mucosa), UBE2J2 (an IBD GWAS related gene that was DE in inflamed UC mucosa and core enriched in non-inflamed UC mucosa), and YIF1A (which was DE in both inflamed and non-inflamed UC mucosa).