Hi!
There are a few genes that only have to do with glutathione, and there are many which interfer with glutathione’s ability to be absorbed (such as it’s precursors).
If I were there to start naming snps or genes, then I would be playing guess game with your daughter’s life.
It is best to educate yourself from someone who is familiar with each and every SNP on the variant report.
That’s why I recommend you to contact Sterling Hill Erdei who will go through your and/or your daughter’s Variant Report and teach you the mechanism of the SNP polymorhisms and also teach you how to use your 23andMe to do your own research.
You can reach her at: beclotaware@gmail.com