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META-DOCK. 1st EELA-2 Grid School. Jérôme Verleyen Juan Manuel Hurtado Rámirez Enrique M e rino Pérez. 2-15 November 2008. Introduction. What is Docking?. But we are talking about proteins. What is a protein?. Protein is a gen product. Biological Process (Transcription, Traduction).
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META-DOCK 1st EELA-2 Grid School Jérôme Verleyen Juan Manuel Hurtado Rámirez Enrique Merino Pérez 2-15 November 2008.
Introduction What is Docking? But we are talking about proteins
What is a protein? • Protein is a gen product. Biological Process (Transcription, Traduction) DNA Protein
Proteins functions. • Regulators, defensives, catalyst, structure, etc. Example of protein regulator and pathways
Disease example Example pathways problems
How to block this protein? LIGAND
Now, what is Protein docking in silico Movie: by Autodock site
How to do protein-ligand docking in silico. First application port to Grid : AutoDock The Scripps Research Institute http://autodock.scripps.edu/
Step 1. Preparing protein receptor. Adding Hydrogen atoms Adding charges
Step 2. Grid parameter file. Defining area of grid
Whichligands? • Data Bases of ligands: • Free access. • Commercial access. • By example free access for: • ZINC. (8 millions of ligands) • NCI Diversiy set.
Docking selection parameters. • Genetic algorithm Lamarckian: • Local search. • Simulated annealing.
Running virtual screening. • Calculate maps for each ligand’s atoms • Executing docking. • Analysis of results.
Analyzing results . Docked energy 226.96 Kcal/mol 2120.96 Kcal/mol 1690.96 Kcal/mol
Muito obrigado! Questions