Step-size with number leg-length. (a) Step size (-axis, nm) against IQ number (-axis). Note that there are no error bars for 2IQ as every step size was identical at 3 actin units of separation. (b) Step size (-axis, nm) against Leg-length (-axis, nm). The models had legs ranging between 9.3 nm (2IQ) to 14.60 nm (4IQ) to 19.90 nm (6IQ) in length.