A single antigenic site on a complex antigenic protein or particle, also known as an epitope. For protein antigens, this site usually corresponds to a peptide region on the surface of the protein.
A specific region of an antigen, which is recognized by and binds to a specific antibody.
Specific region of an antigenic molecule that binds to an antibody or a T cell receptor.
The site on an antigen to which an antibody binds, forming an antigen-antibody complex.
The part of an antigen, also known as an epitope, that is recognized by specific antibody or T cell receptor.
A single antigenic site or epitope on a complex antigenic molecule or particle.
The individual surface feature of an antigen that elicits the production of a specific antibody in the course of the immune response. Each antigenic determinant, typically a few amino acids in size, causes the synthesis of a different antibody and thus exposure to a single antigen may result in the expression of a number of antibodies. Source: http://www.biobasics.gc.ca/english/View.asp?x=696&mid=410