The specific reaction between the trans-acting factor,CTF/NF-1, and the related cis-acting element was studied. On gel retardation assay and footprinting analysis.

• 本文运用凝胶延迟反应（GelRetardationAssay）和足迹法（Footprinting）研究了HeLa细胞核蛋白中的反式作用因子CTF/NF－1与其对应的顺式作用元件的特异性作用。