Re: [Rdkit-discuss] AlignMol and GetBestRMS

2019-10-17 Thread Paolo Tosco
Hi Stamatia, the difference between GetBestRMS and AlignMol is that GeBestRMS will yield the lowest RMSD across all symmetry-equivalent supeirmpositions, whereas AlignMol will yield the RMS from a single superimposition, by default obtained overlaying atoms with the same index across the two

Re: [Rdkit-discuss] AlignMol and GetBestRMS

2019-10-17 Thread Peter S. Shenkin
(I meant an RMSD of about 1 Angstrom. ) On Thu, Oct 17, 2019 at 5:00 PM Peter S. Shenkin wrote: > A large RMSD could come about from a large number of small interatomic > deviations or a small number of large ones. In the latter case, the > difference in conformation could be large. It is useful

Re: [Rdkit-discuss] AlignMol and GetBestRMS

2019-10-17 Thread Peter S. Shenkin
A large RMSD could come about from a large number of small interatomic deviations or a small number of large ones. In the latter case, the difference in conformation could be large. It is useful to also obtain the largest interatomic deviation following superimposition in order to determine which s

Re: [Rdkit-discuss] AlignMol and GetBestRMS

2019-10-17 Thread Omar H94
Dear Stamatia, If you have conformations of the same molecule and want to align them or just compute RMSD between them , I think you should use the AlignMolConformers function. This function will align all conformers of a mol on the first conformer, and returns a list of RMSD values corresponding

[Rdkit-discuss] AlignMol and GetBestRMS

2019-10-17 Thread Stamatia Zavitsanou
Hello all, I have been using the AlignMol function to get the difference in RMSD between the different conformations of a molecule. (the conformations are generated by another software). As I understand the the code will return the minimum RMSD and therefor the best way to align the two molecu