The computational structural models of human tyrosyl-tRNA synthetase and its mutant form G41R (Charcot-Marie-Tooth associated) were constructed, while their whole structural coordinates are still unknown. Grid-services of MolDynGrid Virtual Laboratory and Ukrainian National Grid-infrastructure were used for molecular dynamics (MD) simulations. The analyses of trajectories of MD simulations have shown the β-sheet formation in region Lys147 - Glu157 between H9 and H10 helices (CP1 insertion of Rossman fold) for G41R mutant.