eLife assessment
This study presents an important finding on the metabolism-independent role of IDH1 in regulating nuclear chromatin during terminal erythropoiesis. The evidence supporting IDH1's role on chromatin regulation is solid, but the analysis of its proposed non-metabolic activity is incomplete. The mechanistic perspective of this work, along with other intriguing observations, such as the connection between NAD+-dependent deacetylase SIRT1 and IDH1, should be of great interest to researchers working on erythropoiesis and erythroid disorders.