Frameshift deletion of bases 4:838696 through 4:838703 resulting in the addition of NGRSFNNFPLPTNATHFST after serine 103 of all fd102C isoforms and premature truncation after these novel amino acids.
Deletion of bases 4:838696..838703 in fd102C results in a frameshift and early translation termination after the additon of 19 novel amino acids (NGRSFNNFPLPTNATHFST).