Southern blotting revealed that all of the coding exons of the gene were deleted. In addition, the transcript was undetectable by northern blotting in homozygous mice.
The deletion encompasses 97,637 base pairs of chromosome 14, beginning 15.72 kb upstream of Ednrb and continuing 54.98 kb downstream. According to the Ensembl genome database (m37), no other genes are located in the region that is deleted.