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ZAP Express 和 Lambda ZAP-CMV 载体结合了 Lambda 载体系统的高效率和质粒系统的多功能性。ZAP Express 载体可以对目标基因进行原核表达和真核表达。ZAP Express 载体细胞内切除可产生 PBK-CMV 载体。lacZ 启动子主导原核表达，而 CMV 立即早期启动子主导哺乳动物细胞中的基因表达。
Lambda ZAP-CMV 载体可实现目标基因的高水平真核表达。Lambda ZAP-CMV 载体细胞内切除可产生 pCMV-Script-EX 载体。CMV 立即早期启动子主导哺乳动物细胞中的基因表达。
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