Figure 4 - full size

Figure 4.
Fig. 4. The paratope structures of the YS1 and YSX1 monobodies. (a) The surface area buried at the interface of individual residues in the BC and FG loops of YS1 and YSX1. (b) The interface buried surface area contributed by each amino type to the YS1 and YSX1 paratopes. (c and d) Structural details of the YS1 and YSX1 interfaces. The left panels show an overall view of the arrangement of major interface contacts and the right panels show close-up views of these interactions. In these illustrations, MBP is shown as a gray surface/sticks and contacting monobody paratope residues are shown as sticks. The carbon atoms of the FG loop residues are colored green, and those of the BC loop residues cyan. Putative hydrogen bonds are indicated by dashed lines.