Basically to explain this, an antigen is any type of pathogen that causes disease, while an antibody is something that combats against the antigen.
Antigen binding site or epitope is a part of an antigen that is recognized by the antibody. Paratope is a part of an antibody that binds on epitope.
The process by which an antibody binds to an antigen is called antigen-antibody binding. This occurs when the antibody recognizes and attaches to a specific part of the antigen, forming a complex that helps the immune system identify and neutralize the antigen.
Antibody
epitopes on the antigen while the paratopes on the antibody
No. An antigen is something that an antibody will inactive. It is an antibody inducing agent.
Indirect ELISA and sandwich ELISA are two types of enzyme-linked immunosorbent assays used in laboratory testing. In indirect ELISA, the antigen is immobilized on the surface, and a primary antibody binds to the antigen. Then, a secondary antibody linked to an enzyme is added to detect the primary antibody. In sandwich ELISA, the antigen is captured by a primary antibody that is immobilized on the surface. A second antibody linked to an enzyme is then added to bind to a different epitope on the antigen, forming a "sandwich" complex. The main difference between the two methods is the way in which the antibodies are used to detect the antigen. In indirect ELISA, the primary antibody is detected by a secondary antibody, while in sandwich ELISA, the antigen is "sandwiched" between two antibodies for detection.
Antigen is the opposite of antibody.
polyclonal antobody is the antibody produced for many or non specific antigens but antiserum is the antibody for a specific antigen
Surface antigen
An antibody reacts to the specific antigen it is made to attach to. It is like the lock and key model; it locks onto the antigen.
Sandwich ELISA directly detects the antigen using two antibodies, while indirect ELISA detects the antigen using a primary antibody and a secondary antibody that binds to the primary antibody.
When an antibody attaches onto an antigen it destroys the antigen to help your body fight off a disease.