TABLE 2.

Polar angles defining quasisymmetry axes^a

Symmetry axis	Psi	Phi	Kappa
Quasi-threefold between molecules 4, 5, and 6	79.6	−72.6	120
Quasi-twofold between molecules 1 and 4	73.9	−81.2	180

^aPolar angles are defined as in Rossmann and Blow (46) with respect to the Cartesian axes shown in Fig. 3.