Comparison of <a href="https://en.wikipedia.org/wiki/monoclonal_antibodies" class="extiw" title="w:monoclonal antibodies">monoclonal antibodies</a> (brown: human, blue: non-human):
<ul><li>top row: mouse, chimeric</li>
<li>bottom row: humanized, chimeric/humanized, human</li></ul>
The substems according to the <a href="https://en.wikipedia.org/wiki/nomenclature_of_monoclonal_antibodies" class="extiw" title="w:nomenclature of monoclonal antibodies">nomenclature of monoclonal antibodies</a> are shown below each antibody.
<a href="//commons.wikimedia.org/wiki/User:Anypodetos" title="User:Anypodetos">Anypodetos</a>
<span class="int-own-work" lang="en">Own work</span>, modified from <a href="//commons.wikimedia.org/wiki/File:Chimeric_and_humanized_antibodies.svg" title="File:Chimeric and humanized antibodies.svg">File:Chimeric and humanized antibodies.svg</a>