Analysis of binding residues between scorpion neurotoxins and D2 dopamine receptor: A computational docking study

Authors:
C. Sudandiradoss;C. George Priya Doss;R. Rajasekaran;Rituraj Purohit;K. Ramanathan;Rao Sethumadhavan
Affiliations:
Bioinformatics Division, School of Biotechnology, Chemical and Biomedical Engineering, Vellore Institute of Technology University, Vellore 632014, Tamil Nadu, India;Bioinformatics Division, School of Biotechnology, Chemical and Biomedical Engineering, Vellore Institute of Technology University, Vellore 632014, Tamil Nadu, India;Bioinformatics Division, School of Biotechnology, Chemical and Biomedical Engineering, Vellore Institute of Technology University, Vellore 632014, Tamil Nadu, India;Bioinformatics Division, School of Biotechnology, Chemical and Biomedical Engineering, Vellore Institute of Technology University, Vellore 632014, Tamil Nadu, India;Bioinformatics Division, School of Biotechnology, Chemical and Biomedical Engineering, Vellore Institute of Technology University, Vellore 632014, Tamil Nadu, India;Bioinformatics Division, School of Biotechnology, Chemical and Biomedical Engineering, Vellore Institute of Technology University, Vellore 632014, Tamil Nadu, India
Venue:
Computers in Biology and Medicine
Year:
2008

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Abstract

We report the results on the computation of binding affinity, electrostatic free energies, contact free energies, secondary structures, stabilization centers and stabilizing residues of binding residues during the molecular docking of selected scorpion neurotoxins with D2 dopamine receptor. All the scorpion neurotoxins showed a good and satisfactory docking with the D2 receptor molecule except one neurotoxin 2SN3. We computed multiple alignment studies, solvent accessibility calculations, secondary structure analysis, stabilization centers and stabilizing residues before and after the docking process. Overall, we emphasize that the results obtained in this work will be very helpful in further enhancement of understanding the research on modeling and drug design with respect to the D2 dopamine receptor.