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Flexibility of the side chains of Arg64 (right) and Arg226 (left). FR901451 (magenta) and arginine residues are extracted from the superimposed structures. The arginine residues from the FR901451 complex are shown in grey, those from the non-ligated structure in orange, those from the FR136706 complex in blue, those from the FR901277 complex in brown, those from the Scyptolin A complex in black and those from the HEI-TOE1 complex in green.
