ER proteostasis failure in HYOU1 deficiency alters B cells, neutrophils, and interferon signalling
Multi-omics characterization of 2 patients with biallelic HYOU1 variants reveals that HYOU1 deficiency impairs the unfolded protein response, disrupts early B cell development, and alters neutrophil granulation as well as IFN signalling, further establishing ER proteostasis as a contributor to human immune homeostasis.