Two transgenes were designed to each be controlled independently by five upstream sites (HS I-V) of the human beta-globin locus control regions (LCR). The HS I-V betaS transgene expresses a glutamic acid to valine mutation of the human hemoglobin beta chain complex (HBB) that has been linked to sickle cell disease. The HS I-V alpha transgene expresses a human alpha1 globin (HBA1) gene. Line 1 was generated.