The P{EP}Mkp311 insertion present on the Mkp35 chromosome has been precisely excised.
Mkp35J4 embryos exhibit a mild tracheal phenotype; 12% of dorsal branches between metameres 4 to 8 show a delay in reaching the dorsal midline at stage 14-15, compared to a delay in only 0.3% of wild-type dorsal branches.
Mkp31/Mkp35J4, PTP-ERXE-3022, rl10a has viable phenotype