The image on the left illustrates the results of flexible docking (green) superimposed on the crystal structures of (a) indinavir, (b) atorvastatin, (c) imatinib, and (d) oseltamivir bound to their respective targets.
|O. Trott, A. J. Olson, AutoDock Vina: improving the speed and accuracy of docking with a new scoring function, efficient optimization and multithreading, Journal of Computational Chemistry 31 (2010) 455-461|
AutoDock Vina significantly improves the average accuracy of the binding mode predictions compared to AutoDock 4, judging by our tests on the training set used in AutoDock 4 development.[*]
Additionally and independently, AutoDock Vina has been tested against a virtual screening benchmark called the Directory of Useful Decoys by the Watowich group, and was found to be "a strong competitor against the other programs, and at the top of the pack in many cases". It should be noted that all six of the other docking programs, to which it was compared, are distributed commercially.
AutoDock Tools Compatibility
For its input and output, Vina uses the same PDBQT molecular structure file format used by AutoDock. PDBQT files can be generated (interactively or in batch mode) and viewed using MGLTools. Other files, such as the AutoDock and AutoGrid parameter files (GPF, DPF) and grid map files are not needed.
Binding mode prediction accuracy on the test set. "AutoDock" refers to AutoDock 4, and "Vina" to AutoDock Vina 1.
Ease of Use
Vina's design philosophy is not to require the user to understand its implementation details, tweak obscure search parameters, cluster results or know advanced algebra (quaternions). All that is required is the structures of the molecules being docked and the specification of the search space including the binding site. Calculating grid maps and assigning atom charges is not needed. The usage summary can be printed with "
vina --help". The summary automatically remains in sync with the possible usage scenarios.
Flexible Side Chains
Like in AutoDock 4, some receptor side chains can be chosen to be treated as flexible during docking.
AutoDock Vina tends to be faster than AutoDock 4 by orders of magnitude.[*]
Additionally, Vina can take advantage of multiple CPUs or CPU cores on your system to significantly shorten its running time.
World Community Grid
Qualified projects can run AutoDock Vina calculations for free on the massively parallel World Community Grid. Existing projects using AutoDock Vina there include those targeting Malaria, Leishmaniasis and Schistosomiasis. Some of these projects average over 50 years worth of computation per day.
Average time per receptor-ligand pair on the test set. "AutoDock" refers to AutoDock 4, and "Vina" to AutoDock Vina 1.