PSL301H1 Lecture Notes - Lecture 3: Clonal Selection, Humoral Immunity, Fragment Antigen-Binding
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PSL301H1 Full Course Notes
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Document Summary
Three lines of defense specific with respect to what they recognize and the tool they use to defend have not seen before; we must recognize locks with keys in our inventory, despite never having been exposed to them before. Acquired immunity uch more specific system, which may be (cid:498)trained(cid:499) Versatility ie if we visit different areas, we will be confronted to different antigens we. Pain in joints in flu is a slight auto-immune system, which gets into your joints. B cells have a y shape receptor, but tcell has antigen receptors. B ell receptors this shown b cell can never recognize another antigen t cell. Must be presented with an antigen; ie. the antigen must be catered towards the t cell t cell does a patrol, recognizes an antigen presented by mhc protein. Virus infected cell will present an antigen for the t cll receptor by mhc protein.
