Re: [Open Babel] (no subject)

2017-05-23 Thread Marcos Villarreal
Dear Noel Thank you for your answer. Please see my comments bellow. 2017-05-22 16:00 GMT-03:00 Noel O'Boyle : > In other words, you want to assign atom types based on the structure. > Yes, that's right. > The source of the structure is immaterial except in so far as it > introduces noise. F

Re: [Open Babel] (no subject)

2017-05-23 Thread Marcos Villarreal
Thank you Miro for your answer. Tha is in the spirit of we want to do, but without writing an intermediate file. We think that all the conversions can be done inside the code. Marcos. 2017-05-22 16:06 GMT-03:00 Miro Moman : > Quick and dirty workaround: Convert it to .xyz (removing the Hs if nee

Re: [Open Babel] (no subject)

2017-05-23 Thread Noel O'Boyle
Maybe if you can give an example of the problem with aromaticity, we can help? The only information that is used by that function is the structure, so it was probably wrong at that point. On 23 May 2017 at 13:16, Marcos Villarreal wrote: > > Dear Noel Thank you for your answer. Please see my comm

Re: [Open Babel] (no subject)

2017-05-23 Thread Noel O'Boyle
When I convert the molecules as given with obabel, you're right - you run into a bug that's been fixed on the development branch - aromaticity is perceived differently depending on the presence/absence of explicit hydrogens: > obabel 3rlb_ligand.* -osmi Cc1nc(N)c(Cn2csc(CCO)c2C)cn13rlb_ligand

Re: [Open Babel] (no subject)

2017-05-23 Thread Marcos Villarreal
Thank you Noel for look into this. So how do you suggest to do this inside the code, that is without passing for and intermediate file. I remind you that our gol is to get the same atom types (say aromatics) regardless the input format. For now we are interested in consistency before "accuracy", w

Re: [Open Babel] (no subject)

2017-05-23 Thread Geoffrey Hutchison
> For now we are interested in consistency before "accuracy", which is another > subject. As a related note, we have tested several atom typing programs > (Knodle, I-interpret, Unicon and also Open Babel) and the perception of the > number of aromatic atoms typically differ in 10-20 % when analy

Re: [Open Babel] (no subject)

2017-05-23 Thread Marcos Villarreal
Hello Geoff, thank you for your answer. Please see my comments which are inline with yours comments below 2017-05-23 12:38 GMT-03:00 Geoffrey Hutchison : > > For now we are interested in consistency before "accuracy", which is > another subject. As a related note, we have tested several atom typi

Re: [Open Babel] (no subject)

2017-05-23 Thread Dimitri Maziuk
On 05/23/2017 12:24 PM, Marcos Villarreal wrote: > I agree with you in principle, but consider the following not uncommon > scenario. We are working on docking (autodock vina) whose score depends on > atom typing. As you know the ligands come in different formats, usually > pdb, mol2 or sdf. We w