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Stereo representation of the coiled coil centered on F1565 in the Xrcc4-1551-1609 and Xrcc4-1562-1622 fusion proteins. Xrcc4-1551-1609 is represented with blue cartoon helices and white stick side chains. Xrcc4-1562-1622 is represented with green cartoon helices and dark grey side chains. Only the side chains of residues along the interface are displayed. Residues from the Xrcc4 folding domain are not shown.
