Five Classes of Immunoglobins

- All Antibodies contain four subunits: 
      - Two light chains
      - Two identical heavy chains 
- The subunits are connected via disulfide bonds and non covalent bonds.
- There are five classes of immunoglobins

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- Defense protein are also known as immunoglobins (Ig) 
- Antibodies are produced by the B lymphocytes which are in the bone marrow cells. 
- Involved in humoral immunity (fluid). 
- Structurally diverse proteins

Defense Proteins (Antibodies)

Voet, D., Voet, J. G., & Pratt, C. W. (2013). Chapter 7: Protein Function: Myoglobin and Hemoglobin, Muscle Contractions, and Antibodies. In Fundamentals of biochemistry: Life at the molecular level (4th ed., pp. 176-216). Hoboken, NJ: Wiley. Retrieved February 21, 2021, from archive.org.

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