Principal components of the alignment tensors are depicted for a HEWL and b ubiquitin (Hus et al. 2003) along with the 193L HEWL (Vaney et al. 1996) and 1UBQ ubiquitin (Vijay-Kumar et al. 1987) crystal structures rotated into each alignment frame. Color coding: a medium 5 (red), medium 1 (orange), medium 4 (yellow), medium 2 (light green), medium 6 (dark green), medium 3 (mid blue), medium 7 (dark blue), medium 8 (purple); in axis system (2) the axes are grouped into the four main alignments (grey, pale blue, pale green and black). b C12E5/hexanol (dark red), DMPC/DHPC (red), CHAPSO/DLPC (orange), 4% CHAPSO/DLPC/CTAB (yellow), DMPC/DHPC/CTAB (light green), purple membranes (dark green), 5% CHAPSO/DLPC/CTAB (mid-blue), CHAPSO/DLPC/SDS (dark blue), CpBr/hexanol/NaBr (purple), Pf1 phage (pink)