A similar paradigm may also exist for Gould syndrome as pathogenic variants in glycosyltransferase 25 domain containing 1 (GLT25D1), encoded by collagen β (1-O) galactosyltransferase 1 (COLGALT1) cause musculoskeletal (36) and cerebrovascular (37, 38) manifestations similar to those observed in individuals with COL4A1 and COL4A2 pathogenic variants. Here, COL4A2 is linked to COL4A1/A2-related disorder.