Re: [AMBER] ATP+Mg

From: filip fratev <filipfratev.yahoo.com>
Date: Mon, 24 Oct 2011 05:51:55 -0700 (PDT)

Hello, 
> 2. After getting separate topologys / complex topology - is it necessary to
> constrain the distances between PO2 groups and metal to be sure this tail
> won't move anyway during MD or this coordination bond is strong enough?

No, according to my experience with similar systems, you don't need to apply constrains.It is strong enough.


Regards,
Filip
   


________________________________
From: "Gannett, Peter" <pgannett.hsc.wvu.edu>
To: AMBER Mailing List <amber.ambermd.org>
Sent: Monday, October 24, 2011 3:34 PM
Subject: Re: [AMBER] ATP+Mg

As to the second question, depends on what you want to know.  However, constraining things, I think, should be done with caution.

Pete Gannett

________________________________________
From: Алексей Раевский [rayevsky85.gmail.com]
Sent: Monday, October 24, 2011 8:30 AM
To: AMBER Mailing List
Subject: Re: [AMBER] ATP+Mg

Yes I think so too. Thank you for reply. Can I ask you? Do you have any
suggestions about second problem???
Sorry for such obsession!

24 октября 2011 г. 14:18 пользователь Gannett, Peter
<pgannett.hsc.wvu.edu>написал:

> Maybe it would be easier (better) to use the ATP parameters that have bee
> posted at:
>
> http://www.pharmacy.manchester.ac.uk/bryce/amber#cof
>
> Pete Gannett
>
> ________________________________________
> From: Алексей Раевский [rayevsky85.gmail.com]
> Sent: Monday, October 24, 2011 3:59 AM
> To: AMBER Mailing List
> Subject: [AMBER] ATP+Mg
>
> Hi all. I need your advices about my task which is closely associated with
> ATP toplogy in the binding site. As I understood from one of the letters (
> http://archive.ambermd.org/201106/0522.html) I can use antechamber or
> derive
> charges from the site linked in the letter. But the ATP's phosphate tail is
> very flexible and very negatevly charged thus I need too coordinate it with
> Mg ion to prevent an increased flexibility and motion. Here are some of my
> questions:
> 1. What parts of initial structure I have to prepare and process with
> antechamber - separate adenylate and metal or both of them together like a
> compound?
> 2. After getting separate topologys / complex topology - is it necessary to
> constrain the distances between PO2 groups and metal to be sure this tail
> won't move anyway during MD or this coordination bond is strong enough?
>
> Thank you
> --
>  ****
> *
>
> Nemo me impune lacessit*
> _______________________________________________
> AMBER mailing list
> AMBER.ambermd.org
> http://lists.ambermd.org/mailman/listinfo/amber
> _______________________________________________
> AMBER mailing list
> AMBER.ambermd.org
> http://lists.ambermd.org/mailman/listinfo/amber
>



--
****
*
Nemo me impune lacessit*
_______________________________________________
AMBER mailing list
AMBER.ambermd.org
http://lists.ambermd.org/mailman/listinfo/amber
_______________________________________________
AMBER mailing list
AMBER.ambermd.org
http://lists.ambermd.org/mailman/listinfo/amber
_______________________________________________
AMBER mailing list
AMBER.ambermd.org
http://lists.ambermd.org/mailman/listinfo/amber
Received on Mon Oct 24 2011 - 06:00:06 PDT
Custom Search