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Fig. 7. Tg737orpk mutant mice demonstrate no overt loss of
epithelial polarity in the choroid plexus. Arrowheads indicate the apical
surface of the choroid plexus. (A) Expression of
-catenin (red) in
sections of wild-type and mutant mice. (B) ZO-1 (red) is localized to the
tight junctional complexes near the apical surface of wild-type and mutant
choroid epithelia. (C) Analysis of transport proteins
Na+/K+ATPase (green) and the anion exchanger type 2
(AE2, red) shows normal localization at the apical and basolateral membranes,
respectively. Scale bar: 20 µm.