DNA Sequence analysis of the AR gene showed three mutations
c.C1713 > G missense mutation, resulting in the replacement of a highly conserved histidine residue with glutamine (H571Q) in DNA-binding domain of androgen receptor gene.
c.A1715 > G missense mutation, resulting in the replacement of a highly conserved tyrosine residue with cysteine (Y572C) in DNA-binding domain of androgen receptor gene
c.G2599 > A missense mutation, resulting in the replacement of a highly conserved valine residue with methionine (V867M) in ligand-binding domain of androgen receptor.
The mutations H571Q and V867M were present in mothers of the patients of familial cases concluding the mutation was inherited from mother.
The novel mutation c.C1713 > G is reporting first time in androgen insensitivity syndrome.