Rotational Angle of Alpha Helix evaluator uses Rotation Angle per Residue = acos((1-(4*cos(((Dihedral angles around negative 65°+Dihedral Angles around negative 45°)/2)^2)))/3) to evaluate the Rotation Angle per Residue, The Rotational Angle of Alpha Helix formula is defined as the general formula for the rotation angle Ω per residue of any polypeptide helix with trans isomers is given by the equation. Rotation Angle per Residue is denoted by Ω symbol.
How to evaluate Rotational Angle of Alpha Helix using this online evaluator? To use this online evaluator for Rotational Angle of Alpha Helix, enter Dihedral angles around negative 65° (φ) & Dihedral Angles around negative 45° (ψ) and hit the calculate button.