小草 发表于 2012-11-18 16:11:41

Autodock关于 pdbqt保存的问题

我比较2,所以常常做一些很囧的事情,比如:
一次,我导入PDB加电荷merge非极性H后,直接去save write PDBQT,结果就
    Error :Cannot create the pdbqt file, all atoms do not have an autodock -element field.
原因是没:Edit->Atoms->Assign AD4 {:soso_e110:}
好吧,其实通常是去水加H后直接Grid(或里ligand)->Macromolecule->Choose(这一步完成adding gasteiger charges, merging non-polar hydrogens, adding autodock_elements
and opening a file browser for you to selecta filename for writing the pdbqt.

另,ADL的一个Q&A,附上:

Hi Lisa,

usually this means that there is no partial charge on that specific atom.

One solution could be to calculate the partial charges in a different way by using
semi-empirical or QM packages (MOPAC, Gaussian, Gamess...), save the molecule as Mol2 and
use the prepare_ligand4.py script (that comes with ADT) with the "-C" or "-p" options to
preserve all the charges or only the one in your atom type, respectively.

Another solution could be to edit the PDBQT ligand file and manually add a "reasonable"
charge, while keeping the total molecular charge as integer (0.0, +1.0, -2.0, ...)

Hope this helps,

Stefano



Lisa Brown wrote:
> Hi all,
> I got the follwing massage when I tried to creat pdbqt file for a ligand.
>
> "Sorry, there are no Gasteiger parameters available for atom
> lig.1010:X :   O:O "
>
> Does any one know how to solve this.
> Any suggestions are highly appreciated.
> Thank you in advance
> LB
> ________________________________________________
> --- ADL: AutoDock List--- http://autodock.scripps.edu/mailing_list ---
...[show rest of quote]


--
Stefano Forli, PhD

Research Associate
Olson Molecular Graphics Laboratory
Dept. Molecular Biology,MB-5
The Scripps Research Institute
10550North Torrey Pines Road
页: [1]
查看完整版本: Autodock关于 pdbqt保存的问题