The references provided do not explicitly state which specific antibody is called something else, or has a particular nickname. They simply list the five classes of antibodies (immunoglobulins): IgA, IgD, IgG, IgE, and IgM. Therefore, without additional information, it's impossible to answer the question definitively.
The five classes of antibodies (immunoglobulins) are:
- IgA: Found in mucosal tissue; provides frontline defense against infection.
- IgD: Its role is not completely clear, but it's believed to play a role in B cell activation.
- IgG: The most abundant antibody in blood and tissues; provides long-term immunity.
- IgE: Involved in allergic reactions and parasitic infections.
- IgM: The first antibody produced during an immune response.
Without knowing what the antibody is "called," a specific answer can't be provided.
