A model of molecular vector machine of proteins

Based on the analysis of N_iH⋯O_i-4C bond region of the proteins pentafragments using the quantum chemistry representations, a group of 20 vectors of action has been isolated. These vectors of action are reconstructed by a group of 20 side chains of amino acids being the irreducible representations of vectors. As a result, a model of molecular vector machine of proteins (MVM) has been proposed. This machine includes proteins pentafragments, a system of 20 vectors inside dodecahedron coming out of the O_i-4 atom as from the center and tetrahedral α_i-carbon atom with the side chains of amino acids that change as the polypeptide chain grows. A model with the structured canonical set of amino acids based on the principles of antisymmetry was transferred onto the dodecahedron as an MVM element (Karasev et al., 2005; Karasev et al., 2007). The perspective of MVM application for predicting and designing the secondary structure of proteins has been discussed.