Editors: Marie-Paule Lefranc and Gérard Lefranc (Université de Montpellier, CNRS, Montpellier, France).

V: variable domain; C: constant domain.
The C-REGIONs, shown in red and blue for better view, are identical.
The V-J-REGIONs are shown in green (V) and yellow (J).
| heavy chain carbohydrates | |
| heavy chain | 
The corresponding PDB (Protein Data Bank) format file is from Mike's immunoglobulin structure function site.