Whether the IVS2-2A > G mutation in the SLC26A5 gene causes deafness is unproven.
IVS2-2A > G mutant mice displayed normal hearing sensitivity.
The IVS2-2A > G mutation caused alternative splicing and loss of 11 nucleotides in mRNA.
The splicing abnormality did not affect the expression and function of prestin.
The IVS2-2A > G mutation is insufficient to cause hearing loss in mice.