Assertion: antigen's antibody | /r/HasProperty | y-shaped proteins
Facets:
value: with four polypeptide chains
type: OTHER
Source sentences:
text: Antibodies are Y-shaped proteins with four polypeptide chains.
text: antibody A Y-shaped protein molecule, called an A Y-shaped protein molecule, called an IMMUNOGLOBULIN , produced by the B group of lymphocytes in response to the presence of a ANTIGEN .