Figure 4
From: Down-regulation of KCa2.3 channels causes erectile dysfunction in mice
Electron microscopical localization of KCa2.3 in endothelial cells of sinusoids in corpus cavernosum from a wild type mouse. (A) Endothelial cells located in a sinusoid of corpus cavernosum (one of the cells is represented by a large black asterisk), small black asterisks represents the basement membrane of the endothelium. White asterisk represents an erythrocyte. (B,C) KCa2.3 immunoreactivity is seen in the apical plasma membrane of the endothelial cells (represented by 10 nm gold particles, arrows, enlargements of inset B and C). (D) Immunoreactivity for KCa2.3 channels is seen occasionally in the lateral membrane of endothelial cells (arrows, enlargement of inset).
