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. Author manuscript; available in PMC: 2007 May 10.
Published in final edited form as: Cell. 2006 Dec 29;127(7):1349–1360. doi: 10.1016/j.cell.2006.10.049

Figure 3.

Figure 3

ATP-dependent domain rotation. (A) Domains 2A (blue) and 1A (grey or yellow) shown in molecular surface rotate towards each other by 20° upon binding of AMPPNP. For convenience, domain 2A is held stationary. Motif 1a is highlighted in green as a reference point. AMPPNP is shown as pink and orange ball-and-sticks. The view is down the rotation axis marked by the target sign. (B) An orthogonal view from (A) with the superimposed full UvrD-DNA binary (blue and silver) and ternary (blue, yellow and gold) complex structures. The DNA helical axis is shown as a grey (binary complex) or yellow (ternary complex) dashed line.