Figure 1.
Fig. 1. (A) Structure of the SDF-1 dimer with
the secondary structure assignments for monomer 1 based on the
program INSIGHTII (Biosym Technologies, San Diego) shows the
extended N-terminal loop proceeding into the single turn of a
3[10] helix and strands 1, 2, and 3 followed
by the C-terminal helix packing almost orthogonally to the
three-stranded antiparallel -sheet. (B)
The IL-8 dimer is shown to highlight the differences between the
IL-8 and SDF-1 dimers.
dimer with
the secondary structure assignments for monomer 1 based on the
program INSIGHTII (Biosym Technologies, San Diego) shows the
extended N-terminal loop proceeding into the single turn of a
3[10] helix and strands 
1,