Hi Boaz:

I tried running pdb2pqr server online, but it ended up with an error,
saying "local variable 'key' referenced before assignment", which I don't
know how to understand and handle with.

Thanks,
Xiaoming


On Thu, Apr 24, 2014 at 3:59 PM, Boaz Shaanan <[email protected]> wrote:

> Hi,
>
> It's pdb2pqr problem (unknown residue). I guess you ran pdb2pqr prior to
> running APBS, if not, you should. So, you should submit your question to
> either the APBS or pdb2pqr BB's. They are very helpful people.
>
>    Cheers,
>
>                Boaz
>
>
> Boaz Shaanan, Ph.D.
> Dept. of Life Sciences
> Ben-Gurion University of the Negev
> Beer-Sheva 84105
> Israel
>
> E-mail: [email protected]
> Phone: 972-8-647-2220  Skype: boaz.shaanan
> Fax:   972-8-647-2992 or 972-8-646-1710
>
>
>
>
>
> ________________________________________
> From: CCP4 bulletin board [[email protected]] on behalf of Xiaoming
> Ren [[email protected]]
> Sent: Thursday, April 24, 2014 10:32 PM
> To: [email protected]
> Subject: [ccp4bb] How to create electrostatic surface of modified DNA by
> APBS?
>
> Dear all:
>
> I'm having a problem create the electrostatic surface for a DNA chain
> containing several modified nucleotides. APBS could not identify those
> residues and reported them as unassigned.
>
> What should I do to solve this problem?
>
> Thanks a lot and best,
> Xiaoming
>

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