Conformations in chains of poly ethylene terephthalate) (PET) have been studied by using the molecular orbital package, Mopac, and the molecular modelling package, Polygraf.
After the backbone has been created, side chains are added onto this frame using SCRWL 4 (Krivov et al., 2009), and the side-chain relaxation algorithm from the Rosetta molecular modelling package as implemented in PyRosetta (Chaudhury et al., 2010).
Its versatility and effectiveness warranted its implementation in all major commercial molecular modelling packages (CCG MOE, Schrödinger Maestro, MolSoft ICM, Certara SYBYL-X) and cheminformatics toolkits (ChemAxon, OpenEye) currently on the market.
All modeling studies were performed using the SYBYL-X 2.0 molecular modeling package (Tripos Inc., St . Louis USA) running on a windows 7, 32 bits workstation.
Here we present advanced molecular modeling package called Nemesis [1].
The molecular docking was performed using the Sybyl-x 2.0 molecular modeling package (Tripos Inc., St . Louis MO) running on a Windows 7 32-bit workstation.
We used Q-MOL molecular modeling package to perform a virtual screening of a compound library for RXRα ligands, and found that NSC-640358 ((NZ -N-[1-[2- 3,5-diphenylpyrazol-1-yl -4-methyl-1,3-thiazol-5-yl]ethylidene]droxylamine, NZ -N-[1-[2- 3,5-diphenylpyrazol-1-yl -4-methyl-1,3-thiazol-5-yl]ethylidene]droxylamine
Virtual ligand screening (VLS) of approximate 200,000 compound library of the Developmental Therapeutics Program (DTP) NCI/NIH (http://dtp.nci.nih.gov) was performed using Q-MOL molecular modeling package (Q-MOL L.L.C., San Diego, CA, USA; www.q-mol.com) (Shiryaev et al., 2011; Remacle et al., 2012; Shiryaev et al., 2012).
3-D models of OT-GKR and OT were constructed with the Biopolymer module of the SYBYL molecular modeling package (Tripos Associates, St . Louis MO).
The possible interactions between the channel region of the tetrameric TRPV1 receptor complex and the inhibitors were calculated with the Sybyl molecular modeling package (litSYBYL molecular modeling software, version 7.1, Tripos Associates Inc., 1699 Hanley Rd, St . Louis MO 63144-2913).
The volume of interacting partners (vol) was calculated using 3v: Voss Volume Voxelator (version 1.2) [28], solvent-accessible surface area (SASA) using DSSP [29], while hydration free energy (HFE), electrostatic energy (EE) and radius of gyration (Rgyr) were calculated using TINKER molecular modeling package (version 4.2) [30].
