TpiM80T homozygotes are partially lethal; TpiM80T homozygous and TpiM80T/Tpisgk-js10 transheterozygous adults exhibit a significant decrease in lifespan and an increase in heat sensitivity, shown by the significant decrease in the time until paralysis after a temperature shift to 38[o]C, as compared to controls; TpiM80T/Tpisgk-js10 transheterozygous adults, but not TpiM80T homozygous adults, exhibit an increase in bang sensitivity, shown by a significant increase in recovery time from mechanical stress, as compared to controls.