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Mechanical behavior of Ub. (A) Cartoon representation of Ub. Pulling directions which are relevant to the biological function or examined by Carrion-Vasquez and colleagues (18) are indicated, and the pulled residues are labeled. (B) Mechanical resistance map for Ub, equivalent to the one shown in Fig. 4 for GFP. (C) The effective force constant 〈κij〉 for the extensions in the directions shown in (A).
