We are looking at a peptide (green) sitting in the groove of a class I MHC molecule (mouse H-2Kb, alpha-1 and alpha-2 domains only). In the center image, we are looking at the face to which the T cell antigen receptor would bind. The backbone of the MHC molecule uses RasMol's "structure" color scheme.

This image was constructed from images in a RasMol "movie" script. The atomic coordinate file employed is 1VAB.PDB.

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