The Sod1 coding sequence in Sod1+t2.4 has been replaced by a wild-type Hsap\SOD1 cDNA, resulting in the Hsap\SOD1 coding region expressed under the control of Sod1 sequences, including the Sod1 5'UTR.
Hsap\SOD1Sod.PM is a suppressor of short lived phenotype of Sod1X-16/Sod1X-39
The addition of Hsap\SOD1Sod.PM can suppress the reduced life-span phenotype of SodX-16/SodX-39 flies to effectively wild-type.