Table 3.

Determining when shB(N) is needed to rescue theshB² ERG phenotype

	On transient (mV)	Off transient (mV)
No heat shock	2.3  ± 0.2	1.8  ± 0.4
Heat shock (development)	2.8  ± 0.4	4.3  ± 0.4
Heat shock (adult)	2.0  ± 0.5	1.6  ± 0.6

Expression of shB(N) was driven by a heat-shock promoter in ashB² mutant animal at various times during development to determine when the protein is needed to rescue the ERG phenotype. Data shown are averages from eight flies with the SD shown. The first row is data from flies not subjected to heat shock. The second row is from flies heat shocked from late in the third larval instar through late pupal development. The third row is from flies that were heat shocked only as adults. Receptor potentials were unaffected by heat shock.