Figure 3.
Fig. 3. FliI hexamer model. (A) Stereoview of the ribbon
diagram. (B–D) Superposition of FliI (blue and yellow) onto
the (blue green) and (orange)
subunits of F[1]-ATPase [1BMF (ref. 21)]. (B) N-terminal domain.
(C) ATPase domain. (D) C-terminal domain. The N and C termini of
the model are labeled for one subunit in B and D, respectively.
(E–H) Electrostatic surface potential of the FliI hexamer. (E)
Side view of two opposite subunits. (F) End-on view from the
C-terminal side. (G) End-on view of a cross-section from the
C-terminal side. (H) End-on view from the N-terminal side. Black
and gray arrows indicate the hydrophobic and acidic sleeves,
respectively. The surface potential is color coded as blue
(positive) or red (negative).
(blue green) and 
(orange)
subunits of F[1]-ATPase [1BMF (ref. 21)]. (B) N-terminal domain.
(C) ATPase domain. (D) C-terminal domain. The N and C termini of
the model are labeled for one subunit in B and D, respectively.
(E–H) Electrostatic surface potential of the FliI hexamer. (E)
Side view of two opposite subunits. (F) End-on view from the
C-terminal side. (G) End-on view of a cross-section from the
C-terminal side. (H) End-on view from the N-terminal side. Black
and gray arrows indicate the hydrophobic and acidic sleeves,
respectively. The surface potential is color coded as blue
(positive) or red (negative).