The rotor tip inside a bearing of a thermophilic F1-ATPase is dispensable for torque generation.
Biophysical Journal
Hossain, Mohammad Delawar MD; Furuike, Shou S; Maki, Yasushi Y; Adachi, Kengo K; Ali, M Yusuf MY; Huq, Mominul M; Itoh, Hiroyasu H; Yoshida, Masasuke M; Kinosita, Kazuhiko K