Different binding sites of competitive and non-competitive <a href="https://en.wikipedia.org/wiki/Enzyme_inhibitor" class="extiw" title="en:Enzyme inhibitor">inhibitors</a> (<b>E</b> enzyme, <b>I</b> inhibitor, <b>S</b> natural substrate)
<a href="//commons.wikimedia.org/wiki/User:Sponk" title="User:Sponk">Sponk</a> (<a href="//commons.wikimedia.org/wiki/User_talk:Sponk" title="User talk:Sponk"><span class="signature-talk">talk</span></a>)
<span class="int-own-work" lang="en">Own work</span>