Deletion of ~660bp of the Balat locus, including parts of coding exons 3 and 4.
Balat2 homozygosity virtually abolishes the normal electroretinogram ON and OFF transients upon light stimulation, as compared to controls.
Balat2 homozygous adults bearing BalatninaE.PH present a severely impaired visual perception, as assessed by phototaxis assays, as compared to controls.
Balat2 is not rescued by BalatninaE.PH
The lack of electroretinogram ON transients upon light stimulation presented by Balat2 homozygous adults are not rescued by BalatninaE.PH.