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Protein Structure Computation. Gwyn Skone OUCL PRG Student Conference 2006. Proteins. Approximately 20–30% of body Nearly all protein ingested is retained Chain-like molecular structure Built from 20 amino acids Folds into globular state Alpha helices Beta strands/sheets
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Protein Structure Computation Gwyn Skone OUCL PRG Student Conference2006
Proteins • Approximately 20–30% of body • Nearly all protein ingested is retained • Chain-like molecular structure • Built from 20 amino acids • Folds into globular state • Alpha helices • Beta strands/sheets • May bind to ligands • At an ‘active’ site
Problems Protein Ligand • Folding • Annotation • Docking b a a - -
Docking Protein Ligand • Often reversible • Geometry • Conformational change • Chemical bond potentials • Quantum effects?
Drug Discovery • Bind drug ligand to protein for inhibition • Two approaches: • ‘De novo’ design • Docking • Computationally expensive • Limited precision possible on desktop • Grid computing widely employed
Development • Java classes for molecule/protein model • FFT method
Development • Java classes for molecule/protein model • FFT method • Pipelined architecture • New refinement procedure