Figure 6 - full size

 

Figure 6.
Figure 6. A Model of a Homologous Pairing Intermediate Complex between Dmc1, ssDNA, and dsDNA(A) Schematic representation of dsDNA passing through the central channel of Dmc1. The N-terminal domain (colored yellow) may initially bind to dsDNA, creating a bending stress that could cause the dissociation of the ATPase domain (colored pink).(B) Ternary complex formation by the Dmc1 double ring, ssDNA, and dsDNA requires ATP. The search and the pairing of two homologous sequences could take place at the center of the Dmc1 double ring. The dsDNA is shown entering from one end of the stacked ring. The ssDNA is shown passing through the cavity created by the stacking of two Dmc1 rings.

The above figure is reprinted by permission from Cell Press: Mol Cell (2004, 14, 363-374) copyright 2004.