What is the weight and size of a single antibody molecule?
A single antibody molecule weighs approximately 150 kilodaltons and spans about 10 nanometers in size. This protein forms a distinctive Y shape composed of four polypeptide chains.
Questions about Antibody
Short answers, pulled from the story.
How do antibodies neutralize pathogens and trigger immune responses?
Antibodies neutralize pathogens by blocking essential parts of their surfaces from invading host cells. They can also tag microbes for destruction by other components of the immune system through processes like the complement cascade or activation of natural killer cells.
When did Paul Ehrlich first use the term Antikörper to describe antibodies?
Paul Ehrlich first used the term Antikörper in an October 1891 article titled Experimental Studies on Immunity. Emil von Behring and Kitasato Shibasaburō described antibody activity against diphtheria toxins in 1890 prior to this publication.
Which scientists shared the 1972 Nobel Prize in Physiology or Medicine for elucidating antibody structure?
Gerald Edelman, Joseph Gally, and Rodney Porter characterized the light chain structure and Fab and Fc regions around the early 1960s. These scientists shared the 1972 Nobel Prize in Physiology or Medicine for their structural elucidation work.
What medical applications utilize specific antibodies for diagnostics and treatment today?
Medical diagnostics rely heavily on detecting specific antibodies present in blood samples using serology tests or Nephelometry. Targeted monoclonal antibody therapies treat rheumatoid arthritis, multiple sclerosis, psoriasis, and various cancers including non-Hodgkin's lymphoma.