Ctnnal1^{Gt(RRJ603)Byg}

这个基因陷阱载体pGT2Lxf插入了基因sqRT-PCR分析显示在一些E10.5的纯合突变胚胎中表达水平较低，这表明这是一个功能减弱的等位基因。 (Source: The gene trap vector pGT2Lxf was inserted into intron 1 of the gene, and sqRT-PCR analysis indicated low expression in certain E10.5 homozygous mutant embryos, suggesting a hypomorphic allele.)