Frameshift deletion of bases 4:552972 through 4:552987 resulting in the addition of RHWSLAWS after cysteine 197 of all Tdg isoforms and premature truncation after these novel amino acids.
Deletion of bases 4:552972..552987 in Tdg results in a frameshift and early translation termination after the additon of 8 novel amino acids (RHWSLAWS).