CRISPR/cas9 genome editing is used to insert a nuclear localization signal (NLS) and FLAG tag. The single-stranded oligonucleotide donor DNA template contains the following sequence: CACTGTGAAGCAGACAGTTGATATCTGTCACTTCACTGACAAGGCATGCTGTTATTATTTTCTTTTTCTGATATTAGGAAGGCTACCAAGACTATGAGCCTGAAGCCGACTACAAGGACGACGACGACAAGTAAGAATGTCATTGCACCCAATCTCCTAAGATCTGCCGGCTGCTCTTCCATGGCGTACAAGTGCTCAGT. (J:101977)