Figure 1
From: Evaluation of combinatorial cis-regulatory elements for stable gene expression in chicken cells
Construction of the vectors containing different cis -regulatory elements. CMV, human cytomegalovirus immediate-early enhancer/promoter; CAG, CMV enhancer + chicken beta-actin promoter + rabbit beta-globin intron; eGFP, enhanced green fluorescent protein; pA, bovine growth hormone polyadenylation signal; cMAR, chicken lysozyme matrix attachment region (BamHI-PvuI fragment); cHS4, the core region of chicken beta-globin insulator (250bp); WPRE, woodchuck hepatitis virus posttranscriptional regulatory element.