|KG744||C. elegans||pde-4(ce268) II. Show Description
Hyperactive locomotion and hypersensitive to stimuli such as plate dropping. Restores wild type levels of locomotion to paralyzed ric-8(md303) mutants. Most, but not all adults, appear significantly Egl-c. Some mature adults are thinner than normal. Aldicarb sensitivity, growth rate, pumping, length, and distribution on food are all similar to wild type. The ce268 mutation is a D448N change relative to PDE-4D isoform. It disrupts the catalytic domain by changing one of the four active site residues that together chelate an active site zinc atom. Inheritance is semi-dominant due to dominant negative side effects.
|RM1702||C. elegans||ric-8(md303) IV. Show Description
Ric, Egl, severely locomotion defective, reduced body flexion/straight posture, pharyngeal pumping and growth rate slightly lower than WT. Does not reproduce at 25C. Brood size about 1/10 of WT at 20C, and about 1/3 of WT at 14C. 29% of eggs do not hatch. Early embryogenesis defects include misalignment of mitotic spindles and delayed migration of nuclei. Grows best at 14C but you can still work with it and do crosses at 20C.
|RM2209||C. elegans||ric-8(md1909) IV. Show Description
Poor growth and fertility at 25C. Grows well at 20C and is more fertile than ric-8(md303). Degree of aldicarb resistance is similar to md303 but locomotion rate is greater than md303 and embryonic lethality is only 19%, versus 29% for md303. Contains a Tc1 transposon insertion in the middle of the ric-8 coding sequence.