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. 2003 May 12;161(3):653–660. doi: 10.1083/jcb.200302070

Figure 3.

Figure 3.

Ultrastructure of brain blood vessels in Cl d5 / mice. In the Cld5 −/− brains of 18.5-d embryo, ultrathin-section electron microscopy revealed no overt morphological abnormalities in the blood vessels. TJs were observed between adjacent endothelial cells, and at higher magnification, so-called kissing points of TJs were clearly visualized (arrowheads). Bars: (left) 4 μm; (middle) 0.2 μm; (right) 50 nm.