<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE amino-acid SYSTEM "aminoacids.dtd">
<amino-acid>
   <name>Methionine</name>
   <abbreviation>met</abbreviation>
   <symbol>m</symbol>
   <molecular-formula>C5H11NO2S</molecular-formula>
   <molecular-weight>149.21</molecular-weight>
   <isoelectric-point>5.74</isoelectric-point>
   <CAS-registry-number>63-68-3</CAS-registry-number>
</amino-acid>
