Effector binding region of the antibody is
Within the variable regions of both the Light and Heavy chains are subregions consisting of extremely variable amino acid sequences, called hypervariable, that cooperate in space to form the antigen-binding siteReference: Jawetz, Melnick, & Adelberg's Medical Microbiology; 27th edition; Chapter 8; Immunology
Constant region of heavy chain
Variable region of heavy chain
Constant region of heavy and light chain
Variable region of heavy and light chain
Immunology