Ball-and-stick model of the <a href="https://en.wikipedia.org/wiki/3-Phosphoglyceric_acid" class="extiw" title="w:3-Phosphoglyceric acid">3-phospho-D-glyceric acid</a> molecule, a metabolic intermediate and a precursor to <a href="https://en.wikipedia.org/wiki/Serine" class="extiw" title="w:Serine">serine</a>.
<a href="//commons.wikimedia.org/wiki/User:Jynto" title="User:Jynto">Jynto</a> and <a href="//commons.wikimedia.org/wiki/User:Benjah-bmm27" title="User:Benjah-bmm27">Ben Mills</a>
Derived from <a href="//commons.wikimedia.org/wiki/File:Phosphoserine-3D-balls.png" title="File:Phosphoserine-3D-balls.png">File:Phosphoserine-3D-balls.png</a>.