Maintain at 20-25C. ax2057 was produced by mutation of the sgRNA site and insertion of GFP cDNA at the C-terminus of fbf-2. Insertion of GFP cDNA (from pCM1.53, no ATG/no STOP) at the C-terminus of fbf-2: ATCATCGCCGTGACTACCA(GFP) between II:6089145...6089165. sgRNA site was mutated to avoid Cas9 re-cutting. Reference: Paix A, et al. Genetics. 2014 Sep 23.