Frameshift deletion of bases 4:865559 through 4:865563 resulting in the addition of EWNSKLKSSKRLF after leucine 196 of all Gyf isoforms and premature truncation after these novel amino acids.
Deletion of bases 4:865559..865563 in Gyf results in a frameshift and early translation termination after the additon of 13 novel amino acids (EWNSKLKSSKRLF).