Antibody Notes: Definitions & Explanations PDF | Download eBooks
Study Antibody lecture notes PDF with biology definitions and explanation to study What is Antibody?. Study antibody explanation with biology terms to review biology course for online degree programs.
Antibody Definition:
Secreted proteins from the B cells are called antibodies.
Campbell Biology by J.B. Reece, L.A. Urry, M.L. Cain, S.A. Wasserman, P.V. Minorsky, R.B. Jackson
Antibody Notes:
Antibodies are secreted proteins from the B cells. The antibodies have the same Y-shaped structure as B cell antigen receptors but are secreted rather than membrane bound. It is antibodies and not the B cells themselves, that actually help defend against pathogens. The antigen-binding site of a membrane-bound receptor or antibody has a unique shape that provides a lock-and-key fit for a particular epitope. Noncovalent bonds between an epitope and the surface of the binding site provide a precise interaction. Differences in the amino acid sequences of variable regions provide the variation in binding surfaces that enables this highly specific binding.
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