Diagram showing a tight junction<br><p><b>A</b>- Lumen<br><b>B</b>- Apical side<br><b>C</b>- Basolateral side<br><b>a</b>- Mucus layer<br><b>b</b>- Apical side<br><b>c</b>- Basolateral surface<br><b>d</b>- Tight junctions<br><b>e</b>- Protein complex
</p>
<ol><li>Occludin</li>
<li>Claudin 1</li>
<li>E-cadherin</li>
<li>ZO-1</li>
<li>JAM-1</li>
<li>Catenins</li>
<li>Cingulin</li>
<li>Actin</li></ol><p><b>f</b>- Paracellular space<br></p>
<b>g</b>- Plasma membrane<br>
<a href="//commons.wikimedia.org/wiki/User:Lokal_Profil" title="User:Lokal Profil">Lokal_Profil</a> — Original: Mariana Ruiz (<a href="//commons.wikimedia.org/wiki/User:LadyofHats" title="User:LadyofHats">LadyofHats</a>)
Language neutral version of <a href="//commons.wikimedia.org/wiki/File:Cellular_tight_junction_en.svg" class="mw-redirect" title="File:Cellular tight junction en.svg">Image:Cellular tight junction en.svg</a> by <a href="//commons.wikimedia.org/wiki/User:LadyofHats" title="User:LadyofHats">LadyofHats</a>. Used the language neutral method from <a href="//commons.wikimedia.org/wiki/File:Plant_cell_structure_svg_labels.svg" title="File:Plant cell structure svg labels.svg">Image:Plant_cell_structure_svg_labels.svg</a>. Image renamed from <a href="//commons.wikimedia.org/w/index.php?title=File:Cellular_tight_junction,_LangNeutral.svg&amp;action=edit&amp;redlink=1" class="new" title="File:Cellular tight junction, LangNeutral.svg (page does not exist)">File:Cellular tight junction, LangNeutral.svg</a>