TRNT1 and congenital sideroblastic anemia-B-cell immunodeficiency-periodic fever-developmental delay syndrome: Unfortunately this study did not assess the mitochondrial activity in either patients or zebrafish model, Taken together these data further support the notion that the clinical variability associated with SIFD may be linked to distinct mutations in TRNT1 and expression levels of TRNT1 resulting in an imbalance in cytoplasmic and mitochondrial protein synthesis and the consequent effect on mitochondrial function.