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. 2009 May 7;284(28):19043–19052. doi: 10.1074/jbc.M109.009126

FIGURE 5.

FIGURE 5.

HADDOCK-derived model for the PFUC-Ub complex. A, backbone superposition of 10 refined cis-PFUC-Ub complex structures. The average energy for the cluster is −6349 ± 59 kcal·mol−1 for the cis-PFUC-Ub complex and that is −6377 ± 81 kcal·mol−1 for trans-PFUC-Ub. The root mean square deviation of all backbone atoms in the interfaces is 1.2 ± 0.8 Å for cis-PFUC-Ub and 1.1 ± 0.9 Å for trans-PFUC-Ub. B, close-up view of the interfaces showing the side chains of key interacting residues. The stick representations are in red for the side chains from Ub and in blue for those from PFUC.