D. Thirumalai, Time scales for the formation of the most probable tertiary contacts in proteins with applications to cytochrome c, J PHYS CH B, 103(4), 1999, pp. 608-610
A simple theory (practically without any adjustable parameter) for calculat
ing the diffusion-limited rates of forming loops of arbitrary length in pol
ypeptide chains is given. The time needed to form a tertiary contact betwee
n met80 and his18 in Cytochrome c is 40 mu s, which is in excellent agreeme
nt with experimental determinations.