Endogenous fzr-1 locus tagged with 3xV5 close to the N-terminus. Insertion site is a few amino acids downstream of start site (...PAN-3xV5-SPA ). Primer sequences to validate the strain: slc316 GCTTTTGCGTGTTCTCCTCA, slc317 TGAATCCTGAGTCATCATCCGAGT, WT product 347 bp, q1290[3xV5::fzr-1] product 485 bp.