The most common antibodies are IgM and IgG. IgM is the first antibody produced in response to an infection and is known for its quick response. IgG is the most abundant of the immunoglobulins. It becomes detectable within 2-10 days of an antigen-antibody reaction.
Antibodies are special molecules which are responsible for the neutralization of disease-causing agents and toxins. They help our bodies to fight infections. These molecules are present in every human cell, except red blood cells. Antibodies are also found in certain plants, animals and insects.
Antibodies are essential in fighting infections. There are two Assay Kits for research laoratories types of antibodies – antibody proteins and antibody fragments.
Antibody protein molecules consist of four different protein chains that come together to make a globular shaped molecule. Each chain is composed of two parts: an amino acid chain (monomer) and a sugar chain (dimer). A number of different monomers and dimers join together to form a complete antibody protein.
Antibody fragments are very small antibody molecules that cannot neutralize a disease-causing agent or toxin. These smaller fragments contain a single monomer and a short chain. They can be used in the diagnosis of infections and to screen blood donations for blood-borne diseases.
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