Assertion: histocompatibility antigen | /r/HasProperty | antigen
Facets:
Source sentences:
text: Endogenous antigens are antigens that have been generated within previously normal cells as a result of normal cell metabolism , or because of viral or intracellular bacterial infection .
text: Endogenous antigens are antigens that have been generated within the cell, as a result of normal cell metabolism, or because of viral or intracellular bacterial infection.