Table 1.

Summary of the Parameters Determined In This Study

Parameter Name, Symbol	Value	Error	Units
Filament diameter, D	23.1	0.1	nm
Two-turn pitch, P	5.2	0.1	nm
Radius of the reference point, R	2.42	0.01	nm
Number of flagellin subunits per two-turn pitch, $NU$	10.96	0.01
Hexagonal lattice elastic constant between neighbors, κ	1.2	0.1	mN $\cdot$ m−1
RMSD of a flagellar chain in the hexagonal lattice, ${\langle {\left|\overrightarrow{u}\right|}^2\rangle }^{\left(1/2\right)}$	1.85	0.08	nm
Flagellar bending stiffness, ${\kappa }_{\text{s}}$	2.9	0.4	${10}^{-15}$ J $\cdot$ nm
Flagellar Young’s modulus, E	0.20	0.03	GPa