Figure 1.

Structure of Ypt32 small GTPase in the GTP-bound conformation. The nucleotide is shown as a stick model, the P-loop is yellow, switch I is blue, and switch II is red. The Mg2+ ion is a purple sphere.

Structure of Ypt32 small GTPase in the GTP-bound conformation. The nucleotide is shown as a stick model, the P-loop is yellow, switch I is blue, and switch II is red. The Mg2+ ion is a purple sphere.