BET1 and muscular dystrophy: The rare individuals with pathogenic variants in TRAPPC11 and GOSR2 who manifested with a muscular dystrophy with overt muscle weakness and more highly elevated CK, similar to our individual (P1) with BET1‐deficiency, importantly also showed abnormal immunofluorescence and Western blotting indicative of hypoglycosylation of α‐dystroglycan (α‐DG) using an antibody against the specific glycoepitope of α‐DG (Larson et al, 2018; Stemmerik et al, 2021).