Figure 6 - full size

 

Figure 6.
Figure 6 Stereo diagrams of the CDR1 and CDR3 loops in the two conformational isomers of the Sea dimer. CDR1 is yellow in monomer A (L-type isomer) and blue in monomer B (H-chain analog). CDR3 is magenta in monomer A and red in monomer B. Hydrogen bonds between CDR1 and CDR3 are designated by dotted lines and the interatomic distances in Å between backbone carbonyl and amide groups are superimposed. Short stretches of antiparallel -strand pairing occur between the descending arm of the CDR1 loop and the ascending arm of CDR3 in both monomers. Otherwise, the conformations of the CDR1 and CDR3 loops are substantially different in the two isomers. The models were drawn with the program MOLSCRIPT (Kraulis, 1991[Kraulis, P. J. (1991). J. Appl. Cryst. 24, 946-950.]).

The above figure is reprinted by permission from the IUCr: Acta Crystallogr D Biol Crystallogr (2002, 58, 815-823) copyright 2002.