. . . "2013-09-01Z"^^ . . . "CheShift-2"@en . . "3.0" . . "CheShift-2 (pronounced /t\u0283e\u0283\u026Aft/) is an application created to compute 13C\u03B1 and 13C\u03B2 protein chemical shifts and to validate protein structures. It is based on quantum mechanics computations of 13C\u03B1 and 13C\u03B2chemical shift as a function of the torsional angles (\u03C6, \u03C8, \u03C9 and \u03C71, \u03C72) of the 20 amino acids.CheShift-2 can return a list of theoretical chemical shift values from a PDB file. It also can display a 3D protein model based on an uploaded PDB file and chemical shift values."@en . .