# Only the x, y, z, charge, and radii fields are read.
<ion-example>
  <residue>
     <resName>ION</resName>
     <chainID>A</chainID>
     <resSeq>1</resSeq>
     <atom>
        <serial>ATOM</serial>
        <name>I</name>
        <x>0.000</x>
        <y>0.000</y>
        <z>0.000</z>
        <charge>1.00</charge>
        <radius>3.00</radius>
     </atom>
  </residue>
</ion-example>
