Table 3.

Helical parameters used for protofilament number references.

Protofilament Number	Rise (Å)	Twist (°)
11-3	11.1	−32.5
12-3	10.2	−29.9
13-3	9.4	−27.7
14-3	8.7	−25.8
15-4	10.8	−23.8
16-4	10.2	−22.4