Figure 2 - full size

 

Figure 2.
Figure 2. Structure of Ly49/MHC class I complexes. (a) Superposition of wild-type (blue) and mutant (red) Ly49C -H-2Kb complexes in the crystallographic asymmetric unit, indicating close overall similarity. (b) Electron density in the interface of the mutant Ly49C -H-2Kb complex. The F[o] - F[c] omit map at 2.9 Å resolution is contoured at 2.5 . Ly49C residues 239 -243 (red), H-2Kb heavy chain residues 111 -117 (blue) and [2]M residues 58 -60 (yellow) were excluded from the map calculation. (c) Ribbon diagram of the mutant Ly49C -H-2Kb complex, in which the crystallographic Ly49C dimer (red) crosslinks two MHC class I molecules. (d) Structure of the Ly49A -H-2D^d complex, showing the asymmetric interaction between the Ly49A dimer (green) and two MHC class I molecules. The two interaction surfaces, site 1 and site 2, are indicated by the dashed circle and rectangle, respectively. In c and d, the H-2Kb heavy chain is blue, the ovalbumin peptide (ball-and-stick representation) is red and [2]M is yellow.

The above figure is reprinted by permission from Macmillan Publishers Ltd: Nat Immunol (2003, 4, 1213-1222) copyright 2003.