3.4.21.90 - 29850 3.4.21.90 at 25 A resolution 695938 3.4.21.90 at 9 A resolution, the C-terminal domain folds into a trypsin-like protease structure 695938 3.4.21.90 at 9 A resolution, the carboxyterminal domain folds into a trypsin-like protease structure 695938