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Finally the comments to Mitalipov’s group paper on #CRISPR in human embryos are out in @nature as well as the rebuttal from Ma et al. as brief communications arising #paywall. Let’s have a look more in details -> Thread
One of the major finding of the Ma et al. paper was the discovery of high frequency of inter-homologous repair mechanisms aka loss of heterozygocity LOH -> 1 allele is used as a template for
#CRISPR-HDR -> WT alleles are in fact alleles from the maternal alleles only.
#CRISPR-HDR -> WT alleles are in fact alleles from the maternal alleles only.
We have been debating a lot on this in the last year or so. The first important comment from @Fatwa_Adikusuma et al is Ma et al. missed deleted alleles. In the paper they edited 6 loci in zygotes and EScells and checked for large deletions nature.com/articles/s4158…
