“…Taken together, the SUPT5H loss-of-function patient mutations result in a β-thalassemia trait-like phenotype unlinked to HBB. While we were conducting these studies, independent pedigrees with similar phenotypes were reported, lending further support to our genetic findings (Charnay et al 2022;Achour et al 2020;Lou et al 2022). Notably, patients harboring these mutations are relatively healthy, exhibiting subtle but consistent phenotypes: essentially no anemia, but clear signs of β/α-globin chain imbalance.…”