<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE amino-acid SYSTEM "aminoacids.dtd">
<amino-acid>
   <name>Proline</name>
   <abbreviation>pro</abbreviation>
   <symbol>p</symbol>
   <molecular-formula>C5H9NO2</molecular-formula>
   <molecular-weight>115.13</molecular-weight>
   <isoelectric-point>6.30</isoelectric-point>
   <CAS-registry-number>147-85-3</CAS-registry-number>
</amino-acid>
