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  • immune system
  • It was expanded to refer to any molecule or a linear molecular fragment that can be recognized by highly variable antigen receptors ( B-cell receptor or T-cell receptor ) of the adaptive immune system. (wikipedia.org)
  • The immune system usually does not react to self-antigens under normal homeostatic conditions due to negative selection of T cells in the thymus and is supposed to identify and attack "non-self" invaders from the outside world or modified/harmful substances present in the body under distressed conditions . (wikipedia.org)
  • The T cell/ T lymphocyte (a subtype of white blood cell), of the adaptive immune system , selectively recognize the antigens. (wikipedia.org)
  • highly
  • An antigen binds the highly variable immunoreceptor products ( B-cell receptor or T-cell receptor ) once these have been generated. (wikipedia.org)