MD snapshots from 100 ns trajectories of C3d-Sbi-IV complexes. Upper left snapshots (black outline) show superpositions of C3d-Sbi-IV complexes of Complex 1 (A) and Complex 2 (B). The N- and C-termini of Sbi-IV are labeled NT and CT. Five snapshots at timepoints 0, 25, 50, 75, and 100 ns, as labeled in clockwise sequence (black arrows), are shown for each complex. Residues forming hydrogen bonds in each snapshot are shown (short blue lines). To see this figure in color, go online.