B lymphocyte protein factories produced by hematopoietic stem cell gene editing. - Hartweger, Harald; Ruprecht, Chiara; Yao, Kai-Hui; Laffont, Philippe; Lima Dos Reis, Gabriella; Zhou, Pengcheng; Hägglöf, Thomas; Binet, Laurine; Loewe, Maximilian; Hong, Jun P.; Xiao, Tianli; Sefik, Esen; et al. (Science, 2026)