<synset id="n14888529" type="n">
<lex_filenum>27<lex_filenum/>
<word lex_id="0">cluster of differentiation 4<word/>
<word lex_id="0">CD4<word/>
<pointer refs="n14888310">Hypernym<pointer/>
<def>a glycoprotein that is found primarily on the surface of helper T cells<def/>
<example>CD4 is a receptor for HIV in humans<example/>
<synset/>