Re: [gmx-users] Forcefield parameters for Zinc and phosphorylated residues

2014-08-21 Thread Piggot T.
Hi,

QM parameterisation is how people tend to have done it for things like 
copper-bound proteins with GROMOS. I have been recently simulating one of these 
copper-bound proteins using a GROMOS force field (and indeed an AMBER force 
field too). I can send you a couple of papers regarding the GROMOS 
parameterisation for this protein off list if you like, so you can at least see 
their parameterisation methods for the copper centre?

Cheers

Tom

From: gromacs.org_gmx-users-boun...@maillist.sys.kth.se 
[gromacs.org_gmx-users-boun...@maillist.sys.kth.se] on behalf of Michael Carter 
[michael.car...@icr.ac.uk]
Sent: 21 August 2014 13:10
To: gmx-us...@gromacs.org
Subject: Re: [gmx-users] Forcefield parameters for Zinc and phosphorylated 
residues

Hi Tom,

Thanks, I will look into it.

I know AMBER has the ZAFF forcefield, and I have done the simulation in AMBER, 
but I wanted to know if GROMOS forcefields have this capability. I will have a 
play and see what I can do, most likely I will do a small QM/MM run and use 
this to parameterise the Zinc ions.

Thanks for the help.

Cheers,
Mike

From: gromacs.org_gmx-users-boun...@maillist.sys.kth.se 
[gromacs.org_gmx-users-boun...@maillist.sys.kth.se] On Behalf Of Piggot T. 
[t.pig...@soton.ac.uk]
Sent: Wednesday, August 20, 2014 4:46 PM
To: gmx-us...@gromacs.org
Subject: Re: [gmx-users] Forcefield parameters for Zinc and phosphorylated 
residues

Hi Mike,

As well as the link that Bipin sent, you can also get parameters for GROMOS 
phosphorylated residues (compatible with the 43A1 force field, I think) from:

http://www.gromacs.org/Downloads/User_contributions/Force_fields

I've never used either so have no idea which might be better. The ones that 
Binpin suggested look like they work with the newer GROMOS 54A7 force field, so 
they might be the ones to use.

On your other question, I am not sure about the protein-zinc parameters with a 
GROMOS force field. I would say, is there any particular need for using one of 
the GROMOS protein force fields? There are definitely parameters out there for 
some of the all-atom protein force fields (e.g. AMBER ones) which are probably 
also better in terms of protein parameters.

Cheers

Tom

PS: Hope things are good in the (relatively) new job!

From: gromacs.org_gmx-users-boun...@maillist.sys.kth.se 
[gromacs.org_gmx-users-boun...@maillist.sys.kth.se] on behalf of Michael Carter 
[michael.car...@icr.ac.uk]
Sent: 20 August 2014 12:56
To: gmx-us...@gromacs.org
Subject: Re: [gmx-users] Forcefield parameters for Zinc and phosphorylated 
residues

Hi Bipin,

Thanks for this. It works well for adding functionality to residues.

Cheers,
Mike Carter


On 20/08/2014 12:10, bipin singh bipinel...@gmail.com wrote:

This might help.

http://vienna-ptm.univie.ac.at/



*Thanks and Regards,Bipin Singh*



On Wed, Aug 20, 2014 at 4:30 PM, Michael Carter michael.car...@icr.ac.uk
wrote:

 Hi,

 I have two questions regarding the parameterisation of Zinc ions and a
 phosphorylated TYR residue within two different protein systems.


  1.  Zinc parameters:

 I have three zinc ions within one protein system. I want to use a bonded
 model so that they do not fly out of my protein upon simulation. Is
there
 any documentation on the parameters for such a model in the GROMOS
 forcefield?

 2. Phosphorylated TYR

 In another system I have a phosphorylated TYR residue. PDB2GMX does not
 like this and after looking inot the manual I have found that you can
add
 parameters for this to the existing forcefields. Much like the previous
 question, is there any documentation on the addition of parameters for
 phosphorylated residues in the GROMOS forcefield?

 Any pointers for these questions would be greatly appreciated.

 Cheers,
 Mike Carter

 The Institute of Cancer Research: Royal Cancer Hospital, a charitable
 Company Limited by Guarantee, Registered in England under Company No.
 534147 with its Registered Office at 123 Old Brompton Road, London SW7
3RP.

 This e-mail message is confidential and for use by the addressee only.
If
 the message is received by anyone other than the addressee, please
return
 the message to the sender by replying to it and then delete the message
 from your computer and network.
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[gmx-users] Forcefield parameters for Zinc and phosphorylated residues

2014-08-20 Thread Michael Carter
Hi,

I have two questions regarding the parameterisation of Zinc ions and a 
phosphorylated TYR residue within two different protein systems.


 1.  Zinc parameters:

I have three zinc ions within one protein system. I want to use a bonded model 
so that they do not fly out of my protein upon simulation. Is there any 
documentation on the parameters for such a model in the GROMOS forcefield?

2. Phosphorylated TYR

In another system I have a phosphorylated TYR residue. PDB2GMX does not like 
this and after looking inot the manual I have found that you can add parameters 
for this to the existing forcefields. Much like the previous question, is there 
any documentation on the addition of parameters for phosphorylated residues in 
the GROMOS forcefield?

Any pointers for these questions would be greatly appreciated.

Cheers,
Mike Carter

The Institute of Cancer Research: Royal Cancer Hospital, a charitable Company 
Limited by Guarantee, Registered in England under Company No. 534147 with its 
Registered Office at 123 Old Brompton Road, London SW7 3RP.

This e-mail message is confidential and for use by the addressee only.  If the 
message is received by anyone other than the addressee, please return the 
message to the sender by replying to it and then delete the message from your 
computer and network.
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Re: [gmx-users] Forcefield parameters for Zinc and phosphorylated residues

2014-08-20 Thread bipin singh
This might help.

http://vienna-ptm.univie.ac.at/



*Thanks and Regards,Bipin Singh*



On Wed, Aug 20, 2014 at 4:30 PM, Michael Carter michael.car...@icr.ac.uk
wrote:

 Hi,

 I have two questions regarding the parameterisation of Zinc ions and a
 phosphorylated TYR residue within two different protein systems.


  1.  Zinc parameters:

 I have three zinc ions within one protein system. I want to use a bonded
 model so that they do not fly out of my protein upon simulation. Is there
 any documentation on the parameters for such a model in the GROMOS
 forcefield?

 2. Phosphorylated TYR

 In another system I have a phosphorylated TYR residue. PDB2GMX does not
 like this and after looking inot the manual I have found that you can add
 parameters for this to the existing forcefields. Much like the previous
 question, is there any documentation on the addition of parameters for
 phosphorylated residues in the GROMOS forcefield?

 Any pointers for these questions would be greatly appreciated.

 Cheers,
 Mike Carter

 The Institute of Cancer Research: Royal Cancer Hospital, a charitable
 Company Limited by Guarantee, Registered in England under Company No.
 534147 with its Registered Office at 123 Old Brompton Road, London SW7 3RP.

 This e-mail message is confidential and for use by the addressee only.  If
 the message is received by anyone other than the addressee, please return
 the message to the sender by replying to it and then delete the message
 from your computer and network.
 --
 Gromacs Users mailing list

 * Please search the archive at
 http://www.gromacs.org/Support/Mailing_Lists/GMX-Users_List before
 posting!

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Re: [gmx-users] Forcefield parameters for Zinc and phosphorylated residues

2014-08-20 Thread Michael Carter
Hi Bipin,

Thanks for this. It works well for adding functionality to residues.

Cheers,
Mike Carter


On 20/08/2014 12:10, bipin singh bipinel...@gmail.com wrote:

This might help.

http://vienna-ptm.univie.ac.at/



*Thanks and Regards,Bipin Singh*



On Wed, Aug 20, 2014 at 4:30 PM, Michael Carter michael.car...@icr.ac.uk
wrote:

 Hi,

 I have two questions regarding the parameterisation of Zinc ions and a
 phosphorylated TYR residue within two different protein systems.


  1.  Zinc parameters:

 I have three zinc ions within one protein system. I want to use a bonded
 model so that they do not fly out of my protein upon simulation. Is
there
 any documentation on the parameters for such a model in the GROMOS
 forcefield?

 2. Phosphorylated TYR

 In another system I have a phosphorylated TYR residue. PDB2GMX does not
 like this and after looking inot the manual I have found that you can
add
 parameters for this to the existing forcefields. Much like the previous
 question, is there any documentation on the addition of parameters for
 phosphorylated residues in the GROMOS forcefield?

 Any pointers for these questions would be greatly appreciated.

 Cheers,
 Mike Carter

 The Institute of Cancer Research: Royal Cancer Hospital, a charitable
 Company Limited by Guarantee, Registered in England under Company No.
 534147 with its Registered Office at 123 Old Brompton Road, London SW7
3RP.

 This e-mail message is confidential and for use by the addressee only.
If
 the message is received by anyone other than the addressee, please
return
 the message to the sender by replying to it and then delete the message
 from your computer and network.
 --
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 * Please search the archive at
 http://www.gromacs.org/Support/Mailing_Lists/GMX-Users_List before
 posting!

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The Institute of Cancer Research: Royal Cancer Hospital, a charitable Company 
Limited by Guarantee, Registered in England under Company No. 534147 with its 
Registered Office at 123 Old Brompton Road, London SW7 3RP.

This e-mail message is confidential and for use by the addressee only.  If the 
message is received by anyone other than the addressee, please return the 
message to the sender by replying to it and then delete the message from your 
computer and network.
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Re: [gmx-users] Forcefield parameters for Zinc and phosphorylated residues

2014-08-20 Thread Piggot T.
Hi Mike,

As well as the link that Bipin sent, you can also get parameters for GROMOS 
phosphorylated residues (compatible with the 43A1 force field, I think) from:

http://www.gromacs.org/Downloads/User_contributions/Force_fields

I've never used either so have no idea which might be better. The ones that 
Binpin suggested look like they work with the newer GROMOS 54A7 force field, so 
they might be the ones to use.

On your other question, I am not sure about the protein-zinc parameters with a 
GROMOS force field. I would say, is there any particular need for using one of 
the GROMOS protein force fields? There are definitely parameters out there for 
some of the all-atom protein force fields (e.g. AMBER ones) which are probably 
also better in terms of protein parameters.

Cheers

Tom

PS: Hope things are good in the (relatively) new job!

From: gromacs.org_gmx-users-boun...@maillist.sys.kth.se 
[gromacs.org_gmx-users-boun...@maillist.sys.kth.se] on behalf of Michael Carter 
[michael.car...@icr.ac.uk]
Sent: 20 August 2014 12:56
To: gmx-us...@gromacs.org
Subject: Re: [gmx-users] Forcefield parameters for Zinc and phosphorylated 
residues

Hi Bipin,

Thanks for this. It works well for adding functionality to residues.

Cheers,
Mike Carter


On 20/08/2014 12:10, bipin singh bipinel...@gmail.com wrote:

This might help.

http://vienna-ptm.univie.ac.at/



*Thanks and Regards,Bipin Singh*



On Wed, Aug 20, 2014 at 4:30 PM, Michael Carter michael.car...@icr.ac.uk
wrote:

 Hi,

 I have two questions regarding the parameterisation of Zinc ions and a
 phosphorylated TYR residue within two different protein systems.


  1.  Zinc parameters:

 I have three zinc ions within one protein system. I want to use a bonded
 model so that they do not fly out of my protein upon simulation. Is
there
 any documentation on the parameters for such a model in the GROMOS
 forcefield?

 2. Phosphorylated TYR

 In another system I have a phosphorylated TYR residue. PDB2GMX does not
 like this and after looking inot the manual I have found that you can
add
 parameters for this to the existing forcefields. Much like the previous
 question, is there any documentation on the addition of parameters for
 phosphorylated residues in the GROMOS forcefield?

 Any pointers for these questions would be greatly appreciated.

 Cheers,
 Mike Carter

 The Institute of Cancer Research: Royal Cancer Hospital, a charitable
 Company Limited by Guarantee, Registered in England under Company No.
 534147 with its Registered Office at 123 Old Brompton Road, London SW7
3RP.

 This e-mail message is confidential and for use by the addressee only.
If
 the message is received by anyone other than the addressee, please
return
 the message to the sender by replying to it and then delete the message
 from your computer and network.
 --
 Gromacs Users mailing list

 * Please search the archive at
 http://www.gromacs.org/Support/Mailing_Lists/GMX-Users_List before
 posting!

 * Can't post? Read http://www.gromacs.org/Support/Mailing_Lists

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The Institute of Cancer Research: Royal Cancer Hospital, a charitable Company 
Limited by Guarantee, Registered in England under Company No. 534147 with its 
Registered Office at 123 Old Brompton Road, London SW7 3RP.

This e-mail message is confidential and for use by the addressee only.  If the 
message is received by anyone other than the addressee, please return the 
message to the sender by replying to it and then delete the message from your 
computer and network.
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