Table 2. Summary of the relationship between expression level and phenotype.

		expression level	phenotype
			developmental	progressive
elav	Htt	+	−	+
	ATXN1	+	+	−
1407	Htt	++	−	±
	ATXN1	+++	+++	+
OK6	Htt	++	−	++
	ATXN1	++	+	++
D42	Htt	++	+	++
	ATXN1	++	+	+
cha	Htt	++	+++	+++
	ATXN1	++	−	+
ple	Htt	+++	+++	++
	ATXN1	lethal	lethal	lethal

expression level:

+; 2000–2500 copies/µg total RNA.

++; 4000–6500 copies/µg total RNA.

+++; 8000– copies/µg total RNA.

phenotype:

development = eclosion.

progressive = The strongest of progressive phenotypes (longevity, geotaxis or spontaneous activity).

These data are employed from table 1.

− not significant.

± significant but slight (<20%) difference.

+ less than 2 fold difference.

++ more than 2 fold difference.

+++ more than 3 fold difference.