Table 1.

Input parameters for three different helical specimens.

	P62-PB1	ParM	TMV
Number of micrographs	148	100	100
Persistence Length in µm	1.27 ± 0.05	33.9 ± 2.9	325 ± 36
Reference
Reference Type	Class Average	Class Average	Single Helix
Tile size power spectrum in Angstrom	350	500	500
Tile overlap in percent	80	80	80
Binning factor	4	4	8
Estimated helix width in Angstrom	100	80	180
Minimum and maximum helix length	196, 1200	594, 1500	403, 2000
Alpha threshold	0.00113	0.000859	0.117