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Most important positions for the classification of small GTPase families.
The most important regions (>4%) for the classification of whether a protein belongs to a specific family are highlighted in red. The most important positions within the Ran subfamily is located in the C-terminal part of the protein, in an unstructured region, which is not shown here. Mg and Ca are shown as spheres.
A: Structure of Rab6A;27
B: Structure of Arf1;30
C: Structure of Rho6.31
