2. Cotranslation Folding of Initial Structure
Cotranslational folding was performed with ProtTorter using torsion angles. Whenever a new amino acid was added, the potential energy was calculated, considering every conformation following the change of ϕ and ψ angles. As peptide bonds revolve around the backbone, we supposed they move 1 degree by 1 degree. So, 360 cases were observed. Local minima and the global minimum was gotten. These were to predict the initial structure of angiotensin.