Schematic sketch of a channel protein at an endothelial membrane of the blood-brain barrier.
<a href="//commons.wikimedia.org/wiki/User:LadyofHats" title="User:LadyofHats">LadyofHats</a>; modifier: <a href="//commons.wikimedia.org/wiki/User:Kuebi" title="User:Kuebi">Kuebi</a> = Armin Kübelbeck
August 24th, 2007; modified in March 2009
Part of <a href="//commons.wikimedia.org/wiki/File:Cell_membrane_detailed_diagram_en.svg" title="File:Cell membrane detailed diagram en.svg">File:Cell membrane detailed diagram en.svg</a>