EMP1 preserves hematopoietic stem cell potential under homeostasis and radiation-induced injury by alleviating ER stress

To illustrate EMP1-interacting proteins, we performed co-immunoprecipitation (co-IP) followed by mass spectrometry using HSPCs (Lin-c-Kit+) to characterize protein interactomes of EMP1. Murine HSPCs (Lin-c-Kit+) were infected with retrovirus to force EMP1 overexpression (with HA tag). Then IgG or HA antibodies were used to conducted co-immunoprecipitation (co-IP), followed by and mass spectrometry analysis.