Table 2.

Orientation order parameters for oriented human and bovine insulin fibrils

	Raman wavenumber/cm-1	〈 P 2 〉 a	〈 P 4 〉 a	〈 P 2 〉 b	〈 P 4 〉 b	R2
Human insulin fibrils	1674	0.48 0.51*	0.17 -0.16*	0.49 0.54*	0.29 -0.12*	0.95
Bovine insulin fibrils		0.47 0.51*	0.1 -0.16*	0.49 0.52*	0.09 -0.15*	0.97

Experimental data were fitted with equation 5, 1 - 2(a) and 3 - 4 (b).

^*$\langle P_4\rangle ={\langle P_4\rangle }_{min}=\frac{1}{18}(35{\langle P_2\rangle }^2-10\langle P_2\rangle -7)$.