5 - antibody structure

Question 1

What is the general structure of antibodies?

Answer 1

• Y shaped protein of two identical heavy chains + two light chains
• end of Y region recognises a particular epitope on an antigen
• ag bind sites on variable region of a single Ig molecule are identical

Question 2

What are the components of immunoglobulin structure?

Answer 2

1. heavy chain
2. light chain
3. constant regions
4. Variable regions
5. disulphide bonds