Assertion: antigen's antibody | /r/HasProperty | 2 heavy chains
Facets:
Source sentences:
text: Each antibody is made of four polypeptide (protein) chains: 2 heavy chains and 2 light chains.
text: Antibodies are heavy (~150 kDa) globular plasma proteins.
text: Each antibody is made of four polypeptide (protein) chains: 2 heavy chains and 2 light chains.