Ferritin is an iron-binding globular protein present in every cell type. It is a 450 kDa protein consisting of 24 subunits composed of 2 chains - H & L. ferritin is composed of a protein shell within which about 4500 iron (Fe3+) ions can be stored. Ferritin stores iron so that our body can use it later. It is a [...]
Immune system is a defense system that enables us to resist infections. The immune system is composed of two types of immunity- the innate or non-specific immunity and the adaptive or specific immunity. The innate immunity is the first line of defense against invading organisms while the adaptive immunity acts as a second line of defense and also gives protection [...]
Antigen (Ag) antibody (Ab) reactions occur when an antigen combines with a corresponding antibody to produce an immune complex. Therefore, an antigen-antibody reaction is thus a bimolecular association which is similar to an enzyme-substrate interaction but the only difference is that antigen-antibody reaction does not lead to an irreversible chemical interaction. The basis for antigen-antibody reactions are the non-covalent interactions [...]