The tips of the Y-shaped antibody protein, consisting of amino acid chains whose sequences vary greatly from antibody to antibody so that many different types of antigens can be combined with them. These occur within the variable regions of the light and heavy chains. Compare constant region.
Selected hypervariable region links:
© 1997-2006 Healthboard.com.
Healthboard.com is a purely
informational website, and should not be used as a substitute
for professional legal, medical or technical advice.