Side view (backbone model)
This figure shows the two associated V-DOMAINs and C-DOMAINs of an alpha-beta T cell receptor (alpha chain (PDB: 1bd2_D), delta chain (PDB: 1bd2_E).
The two V-DOMAINs, V-ALPHA and V-DELTA, correspond to the TRA V-J-REGION and TRB V-D-J-REGION, respectively.
The two C-DOMAINs, C-ALPHA and C-BETA2, are part of the TRA C-REGION and TRB C-REGION, respectively.
Only the extracellular domains are displayed. The carbohydrates are not shown.
In the PDB file, the sequences include 10 and 17 amino acids of the CONNECTING-REGION of the alpha and delta chains, respectively, however, the 3D structures only include amino acids up to positions 203 and 247, for the alpha and beta C-DOMAINs, respectively, according to the IMGT unique numbering for C-DOMAIN.
This image has been generated with the program RASMOL version 2.6  from the PDB file 1bd2 , containing the atomic coordinates of the complexe of a human T cell receptor B7.
 Sayle, R. and Milner-White, E.J. TIBS, 20, 374 (1995).
 Ding, Y.H. et al., Immunity, 8, 403-411 (1998).