Spacefilling model.

Heavy Chain,
    Light Chain,
    Lysozyme Antigen

Backbone.
    Disulfide bonds.

The variable fragment, Fv, is the minimal antigen-binding fragment.
CDR's of Fv (side view).
    L1 L2 L3 H3 H2 H1
    Non-epitope Light, Heavy.
CDR's Identified (facing paratope).
Paratope contact atoms (within 4.2 Å of epitope).

Lysozyme Contact Atoms superimposed over the paratope on Fv.

Lysozyme's backbone is shown with the epitope portions thickened. The epitope is
    discontinuous (N--->C)
    and flat.

CDR's:Epitope.
    CDR's.
    Epitope.