Conclusion
Initial structure formation corresponded cotranslational protein
folding. Torsion angels of the residue on backbone rotates one by one
following torsional inertia. Optimization based on torsional inertia has
reduced the number of candidate structures for the native structure.
Stable conformation with low potential energy was obtained after input
angiotensin sequence into ProtTorter which has the functions of torsion
angle rotations and potential energy calculation. Coordinates of local
minima to the stable structure were observed in very short time. The
clearest folding pathway was represented in the most stable structure
coordinate.
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