Table 1.

Isl2, Satb2, and Tbr2 show low levels of co-expression in RGCs. Frequencies of RGCs expressing Isl2, Satb2, or Tbr2 were calculated using 20 μm cryosections from P10 mouse retina. N=5 animals/condition, 7 images quantified/animal. In total, 2631 cells were counted. Cell counts were summed across images for each animal; averages and S.D.s were calculated across animals.

RGC type	Percentage ± S.D.
Isl2+	41% ± 3
Satb2+	22% ± 4
Tbr2+	28% ± 6
Isl2+/Satb2+	3% ± 1
Satb2+/Tbr2+	2% ± 1
Isl2+/Tbr2+	3% ± 1
Isl2+/Satb2+/Tbr2+	0.3% ± 0.3