UBTF and childhood-onset motor and cognitive regression syndrome with extrapyramidal movement disorder: Recently, a de novo, pathogenic, gain‐of‐function, missense variant in UBTF, p.Glu210Lys, has been recurrently associated with the emerging neurodegenerative disorder CONDBA (Bastos et al., 2020; Edvardson et al., 2017; Ikeda et al., 2021; Sedláčková et al., 2019; Toro et al., 2018).