Antigen - covalent interactions. The term...

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Antigen (Ag): A molecule which elicits a specific immune response when introduced into an animal. More specifically, antigenic (immunogenic) substances are: 1. Generally large molecules (>10,000 daltons in molecular weight), 2. Structurally complex (proteins are usually very antigenic), 3. Accessible (the immune system must be able to contact the molecule), and 4. Foreign (not recognizable as "self"). Antibody (Ab): A glycoprotein produced in response to an antigen that is specific for the antigen and binds to it via non-
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Unformatted text preview: covalent interactions. The term "immunoglobulin" is often used interchangeably with "antibody". We will use the term "immunoglobulin" to describe any antibody, regardless of specificity, and the term "antibody" to describe an antigen-specific "immunoglobulin". Immunoglobulins (Igs) come in different forms (IgA, IgD, IgE, IgG, IgM) that reflect their structure. More information can be found here....
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