Antigen binding
from class: Microbiology Definition Antigen binding is the specific interaction between an antigen and an antibody or a receptor on a lymphocyte. This interaction is crucial for the immune system to recognize and neutralize pathogens.
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Predict what's on your test 5 Must Know Facts For Your Next Test Antigen binding sites are located on the variable regions of antibodies. The strength of antigen binding is referred to as affinity. T cells have receptors (TCRs) that bind to antigens presented by MHC molecules. B cells can bind directly to free-floating antigens through their B cell receptors (BCRs). Cross-reactivity can occur when an antibody binds to similar epitopes on different antigens. Review Questions What is the role of the variable region in antigen binding? How do T cells recognize antigens? What is cross-reactivity in the context of antigen binding? "Antigen binding" also found in:
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