Three copies of the Tag:V5 tag have been inserted into the endogenous app locus, into sequence encoding the extracellular domain between transmembranes 3 and 4 (the tag sequence is inserted in between codons 221 and 222 of the RM isoform).
Three copies of the Tag:V5 tag have been inserted into the endogenous app locus between codon 222 and 223 of most app isoforms.