一段跨越4号外显子至6号外显子的部分序列被替换为一个由三个终止密码子、内含子、lacZ基因和neo cassette组成的序列。通过脑组织的 Western blot 分析,证实了没有蛋白质表达(来源:J:157318)
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Sequence spanning part of exon 4 through exon 6 was replaced with a triple STOP sequence, IRES, lacZ gene, and neo cassette. Absence of protein expression was confirmed by western blot analysis on brain extracts. (J:157318)