Antibody.
Antibodies?
An antigen is any substance that causes your immune system to produce antibodies against it. An antigen may be a foreign substance from the environment. If you get a vaccine for rubella, the antibody formed will not act against mumps (another virus).
protein
Depending on the exact response, the substance is generally called a pathogen, yet more specifically depending on the nature of the response and origin of the substance, could be an antigen, allergen, carcinogen, etc.
When an antigen is bound to a class II MHC protein, it can activate helper T cells. Helper T cells play a critical role in initiating and coordinating immune responses by releasing various signaling molecules and activating other immune cells.
The term "hapten" does not belong in the list because it is not a complete antigen. Haptens are small molecules that can bind to antibodies, but they are unable to induce an immune response on their own.
An antigen is a protein made in response to a specific antigen.
An antibody is a specific protein evoked by an antigen.
Yes. An antigen is a substance that stimulates an animal in order to produce an antibody reaction to counteract the substance by a specific binding antibody-antigen. Most of the times this antigen is a molecule of protein.
antibody
Antibody.
Antibody is a protein made in response to a specific antigen. The antibody attaches to the antigen and makes it useless.
The prostate-specific antigen (PSA) test is a blood screen for prostate cancer.
An antigen is any substance that causes your immune system to produce antibodies against it. An antigen may be a foreign substance from the environment. If you get a vaccine for rubella, the antibody formed will not act against mumps (another virus).
antigen
The antigen is the foreign "invader" in the body. The antibody is a tiny "Y" shaped protein that is chemically attracted to a specific antigen; binding to it and thereby marking it for destruction by a white blood cell.
An antibody is a y shaped molecule which is specific to a particular antigen, it is a globular protein which is made by white blood cells called lymphocytes. These defend the body against antigens (alien cells).
Noun A blood protein produced in response to and counteracting a specific antigen