There are five immunoglobulin classes (isotypes) of antibody molecules found in serum: IgG, IgM, IgA, IgE, and IgD.
The classes of antibodies are IgG, IgA, IgM, IgD, and IgE.
kinases, enzymes, peptidases, antibodies, ribosomal proteins, transcription factors, ion channels
Antibodies
Vaccines stimulate production of antibodies.
primarily B antibodies and Rh antibodies
No they do not. B cells synthesize the antibodies.
Antibodies respond to pathogens.
Antibodies are made in the lymph nodes.
With active immunity, the body has cells that produce antibodies to antigens composed of amino acids. The antigen could be a protein itself, or on a virus or bacteria. Once the body has a cell that can produce antibodies to this antigen, it differentiates into memory cells and plasma cells, which are the factories that produce the antibodies. With passive immunity, just the antibodies are given, such as an injection. Mothers also confer passive immunity to their children through breast milk. IgA (one of the 5 antibody classes) is secreted. This is temporary as it will bind the antigen, but will not induce production of their own protective antibodies.
IgG and IgM can fix complement by activating the C3 protein at the end of the complement cascade allowing ADCC (antibody dependent cell- mediated cytoxicity) to occur. I have never heard of an IgC antibody. In humans there are only 5 classes of antibodies: IgM, IgG, IgA. IgD & IgE.
Function of antibodies is to neutralizes the antigens that enters.
antibodies fight infections
An example of a protein that helps fight off infection is antibodies.