外显子4和部分外显子5被替换了抗氨苄青霉素基因,导致了下游框架移位。RT-PCR检测到含有1-3号外显子的mRNA,但没有4号。 Western blot分析在纯合小鼠中未检测到蛋白产物。(来源:J:87443)
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Exon 4 and part of exon 5 were replaced with a neomycin resistance gene. This caused a downstream frame shift. RT-PCR detected mRNA containing exons 1-3 but not 4. Western blot analysis detected no protein products in homozygous mice. (J:87443)