Institute of Molecular Function

 

         

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 Introduces a new logical drug design methodology for organic chemists.

 The protein- and ligand-flexible docking simulation program, Docking Study with HyperChem

 Free software, Molecular Modeling Tools for HyperChem

   Last Modified

   7 Sep 2007

Homology Modeling for HyperChem

Homology Modeling for HyperChem Logo Gaussian Interface for HyperChem Logo Full-Auto Interactive, Muti-layer ONIOM Interface Logo Docking Study with HyperChem Logo Mol Dimension Logo Virtual Screening System Technology The Next-generation Drug Design Technology

Reaction Coordinate Analysis for Protein-Ligand Complex Formation

Homology Modeling for HyperChem has a powerful potential for performing functional analysis and simulations of protein molecule as well as for performing protein modeling.

For example, the following reaction coordinate in a protein-ligand complex formation can be analyzed in only half a day, using the molecular mechanics calculations.

Reaction Coordinate

 

In this study, the initial structure of the protein was modeled using a crystal structure of a homologous, non-liganded protein.

The following figure shows the result of the superposition between the crystal structure and the simulated structure. The results of the present simulations were in excellent agreement with the experimental results, i.e.,  both the docking mode of the ligand and the side chain conformations contacted to the ligand were reproduced by the present study.

 

RMS Fit

 

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