Contents
Is a docking score of good?
Docking scores are generally bad at telling which binding conformations are useful, they only optimize a small molecule inside a binding pocket.
What’s a good docking score?
For Glide SP or HTVS, scores of -10 or lower usually represent good binding. For some targets (e.g., with shallow active sites or predominantly hydrophobic interactions), scores of -8 or -9 might be very good.
Is good docking score?
It is clear that an RMSD < 2.0 Å corresponds to good docking solutions. On the other hand, docking solutions with RMSD between 2.0 and 3.0 Å deviate from the position of the reference, but they keep the desired orientation.
Is there a perfect scoring function for docking?
A perfect scoring function would be able to predict the binding free energy between the ligand and its target. But in reality both the computational methods and the computational resources put restraints to this goal. So most often methods are selected that minimize the number of false positive and false negative ligands.
Which is the docking score used in drug discovery?
The docking score used in the Drug Discovery Workbench is the PLANTSPLPscore [Korb et al., 2009]. This score has a good balance between accuracy and evaluation time. The score mimics the potential energy change, when the protein and ligand come together.
How are the coefficients of a docking function calculated?
Counting may be based on the number of ligand and receptor atoms in contact with each other or by calculating the change in solvent accessible surface area (ΔSASA) in the complex compared to the uncomplexed ligand and protein. The coefficients of the scoring function are usually fit using multiple linear regression methods.
How is the search algorithm used in docking?
The search algorithm In a docking simulation, the variables to optimize are those that define a binding mode. Namely, the rotation angle for all rotatable (flexible) bonds in the ligand (figure 10.50), the position of the ligand within the binding site (translation), and the overall rotation of the ligand with respect to the protein.