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Fig. 1. Cux2 protein localizations. (A) In E10.5 ventral spinal cords
Cux2 (green) immunostaining is localized to the vz and iz (arrowhead).
(B) Cux2 is observed in BrdU-labeled (red) proliferating spinal cord
progenitors at E10.5 (arrows). (C-K) Immunostaining of E11.5 spinal
cords demonstrating overlapping activity of Cux2 (green) and
P27Kip1 (red) in the rp, vz and a 2-4-cell-layer-thick region
outlining the iz (arrowhead) as well as the fp. Scale bar: 500 µm in C.