...multiplex experiments 4-color flow panel: BV421, FITC, PE, and APC 4-color microscopy panel: DAPI for nuclei...binding to epitopes on antigens, they are also capable of recognizing and binding epitopes on constant...region. Isotypes The mammalian immune system produces five classes of antibodies, known as isotypes. An isotype...following table describes the five human isotypes. Some isotypes naturally form multi-antibody units, while...Collection Jump To: Antibody Guide Production Structure Isotypes Antigen Specificity Other Affinity Reagents Handling... applications, and is covered in the following Isotypes section. The variable region of the antibody is...“heavy chain constant region” or Fc. Different isotypes play different roles in the immune response, and...