Re: [gmx-users] Problem with pdb2gmx and a new residue

2010-09-21 Thread Justin A. Lemkul



Thomas Piggot wrote:

Hi,

If I'm not mistaken then I think pdb2gmx is renaming O2 to OXT because 
of changes to the entries in the xlateat.dat file (found in the top 
folder).




Good point, thanks.  I still think it would be a useful improvement if pdb2gmx 
double-checked itself.  Since that particular translation is only intended for 
C-termini, then my case (which I suspect will be shared by many others) still 
causes an annoying failure.


-Justin


Cheers

Tom

Justin A. Lemkul wrote:
I have posted a work-around in the discussion of bug #567.  I think a 
code fix
will still be preferable, ultimately, but if you're stuck, you can 
give it a try.


http://bugzilla.gromacs.org/show_bug.cgi?id=567

-Justin

Justin A. Lemkul wrote:


Ramachandran G wrote:

Hi Justin,
Presently i too facing the same exact problem. I built the
topology for a chromophore in the protein and entered all the new
parameters in the .rtp, atp, hdb and defined the bonded and nonbonded
parameters. Finally i got the following error.

Fatal error:
Atom OXT in residue CRIH 64 was not found in rtp entry CRIH with 27 
atoms

while sorting atoms.

By this time if you identified the problem. Please help me too. Thank
you.

I have filed a bugzilla.  If I can help the developers further diagnose
the issue I will, but until that time, I'm awaiting a patch.

-Justin


Rama

On Mon, Sep 20, 2010 at 3:00 PM, Justin A. Lemkul mailto:jalem...@vt.edu>> wrote:



Mark Abraham wrote:



- Original Message -
From: "Justin A. Lemkul" mailto:jalem...@vt.edu>>
Date: Tuesday, September 21, 2010 6:30
    Subject: [gmx-users] Problem with pdb2gmx and a new residue
To: Gromacs Users' List mailto:gmx-users@gromacs.org>>

 >
 > Hi All,
 >
 > I'm trying to build a topology for a chromophore-containing
 > protein using Gromacs 4.5 and OPLS-AA.  The chromophore is
 > incorporated into the protein's backbone and the parameters
all
 > come from a reputable publication, so I've done the 
following:

 >
 > 1. Created a new .rtp entry
 > 2. Created an .hdb entry
 > 3. Defined all nonbonded parameters for new atomtypes in the
 > .atp and ffnonbonded.itp file
 > 4. Defined all new bonded parameters in ffbonded.itp

I think you need to define CRO as Protein in 
residuetypes.dat so

that the pdb2gmx mechanism can deduce that it should form a
C-terminal peptide link in the absence of an end-of-chain 
marker.



I had done that, I forgot to mention it.  I tried using my modified
residuetypes.dat from both the working directory and in $GMXLIB.

Similarly, I have a modified peptide in what's become my 
"system
for generating pdb2gmx bugzilla reports", and with 4.5.1 and 
git

head, if I omit the residuetypes.dat definition I see

Identified residue ALA1 as a starting terminus.
Warning: Residue KCX193 in chain has different type (Other) 
from

starting residue ALA1 (Protein).
Warning: Residue ASP194 in chain has different type (Protein)
from starting residue ALA1 (Protein).
Warning: Residue ASP195 in chain has different type (Protein)
from starting residue ALA1 (Protein).
Warning: Residue GLU196 in chain has different type (Protein)
from starting residue ALA1 (Protein).
Warning: Residue ASN197 in chain has different type (Protein)
from starting residue ALA1 (Protein).
More than 5 unidentified residues at end of chain - disabling
further warnings.
Identified residue THR192 as a ending terminus.

---
Program pdb2gmx_master, VERSION 4.5.1-20100916-6d51340
Source code file: ../../../src/kernel/pdb2gmx.c, line: 655

Fatal error:
Atom OXT in residue VAL 467 was not found in rtp entry VAL with
16 atoms
while sorting atoms.
.
For more information and tips for troubleshooting, please check
the GROMACS
website at http://www.gromacs.org/Documentation/Errors
---

This is a bit different, inasmuch as I see the error on the
final residue of the first chain, rather then on the modified
residue, as you do. However pdb2gmx should cope better with 
this

case - clearly it's confused in the above messages about
non-matching types.

We should probably file a bugzilla, even if this fixes your
symptoms.


I figured as much, just thought I'd check to see if I'd missed
anything obvious.  Thanks for the reply.  I'll file a bugzilla.

-Justin

Mark
 >

Re: [gmx-users] Problem with pdb2gmx and a new residue

2010-09-21 Thread Thomas Piggot

Hi,

If I'm not mistaken then I think pdb2gmx is renaming O2 to OXT because 
of changes to the entries in the xlateat.dat file (found in the top folder).


Cheers

Tom

Justin A. Lemkul wrote:

I have posted a work-around in the discussion of bug #567.  I think a code fix
will still be preferable, ultimately, but if you're stuck, you can give it a 
try.

http://bugzilla.gromacs.org/show_bug.cgi?id=567

-Justin

Justin A. Lemkul wrote:


Ramachandran G wrote:

Hi Justin,
Presently i too facing the same exact problem. I built the
topology for a chromophore in the protein and entered all the new
parameters in the .rtp, atp, hdb and defined the bonded and nonbonded
parameters. Finally i got the following error.

Fatal error:
Atom OXT in residue CRIH 64 was not found in rtp entry CRIH with 27 atoms
while sorting atoms.

By this time if you identified the problem. Please help me too. Thank
you.

I have filed a bugzilla.  If I can help the developers further diagnose
the issue I will, but until that time, I'm awaiting a patch.

-Justin


Rama

On Mon, Sep 20, 2010 at 3:00 PM, Justin A. Lemkul mailto:jalem...@vt.edu>> wrote:



Mark Abraham wrote:



- Original Message -
From: "Justin A. Lemkul" mailto:jalem...@vt.edu>>
Date: Tuesday, September 21, 2010 6:30
    Subject: [gmx-users] Problem with pdb2gmx and a new residue
To: Gromacs Users' List mailto:gmx-users@gromacs.org>>

 >
 > Hi All,
 >
 > I'm trying to build a topology for a chromophore-containing
 > protein using Gromacs 4.5 and OPLS-AA.  The chromophore is
 > incorporated into the protein's backbone and the parameters
all
 > come from a reputable publication, so I've done the following:
 >
 > 1. Created a new .rtp entry
 > 2. Created an .hdb entry
 > 3. Defined all nonbonded parameters for new atomtypes in the
 > .atp and ffnonbonded.itp file
 > 4. Defined all new bonded parameters in ffbonded.itp

I think you need to define CRO as Protein in residuetypes.dat so
that the pdb2gmx mechanism can deduce that it should form a
C-terminal peptide link in the absence of an end-of-chain marker.


I had done that, I forgot to mention it.  I tried using my modified
residuetypes.dat from both the working directory and in $GMXLIB.

Similarly, I have a modified peptide in what's become my "system
for generating pdb2gmx bugzilla reports", and with 4.5.1 and git
head, if I omit the residuetypes.dat definition I see

Identified residue ALA1 as a starting terminus.
Warning: Residue KCX193 in chain has different type (Other) from
starting residue ALA1 (Protein).
Warning: Residue ASP194 in chain has different type (Protein)
from starting residue ALA1 (Protein).
Warning: Residue ASP195 in chain has different type (Protein)
from starting residue ALA1 (Protein).
Warning: Residue GLU196 in chain has different type (Protein)
from starting residue ALA1 (Protein).
Warning: Residue ASN197 in chain has different type (Protein)
from starting residue ALA1 (Protein).
More than 5 unidentified residues at end of chain - disabling
further warnings.
Identified residue THR192 as a ending terminus.

---
Program pdb2gmx_master, VERSION 4.5.1-20100916-6d51340
Source code file: ../../../src/kernel/pdb2gmx.c, line: 655

Fatal error:
Atom OXT in residue VAL 467 was not found in rtp entry VAL with
16 atoms
while sorting atoms.
.
For more information and tips for troubleshooting, please check
the GROMACS
website at http://www.gromacs.org/Documentation/Errors
---

This is a bit different, inasmuch as I see the error on the
final residue of the first chain, rather then on the modified
residue, as you do. However pdb2gmx should cope better with this
case - clearly it's confused in the above messages about
non-matching types.

We should probably file a bugzilla, even if this fixes your
symptoms.


I figured as much, just thought I'd check to see if I'd missed
anything obvious.  Thanks for the reply.  I'll file a bugzilla.

-Justin

Mark
 > The coordinate file was then input into pdb2gmx with an
 > oplsaa.ff directory in the working directory.  I received
 > the following error (identical with version 4.5 and the most
 > recent git with release-4-5-patches):
 >
 > pdb2gmx -f struct.pdb
 >

Re: [gmx-users] Problem with pdb2gmx and a new residue

2010-09-21 Thread Justin A. Lemkul


I have posted a work-around in the discussion of bug #567.  I think a code fix 
will still be preferable, ultimately, but if you're stuck, you can give it a try.


http://bugzilla.gromacs.org/show_bug.cgi?id=567

-Justin

Justin A. Lemkul wrote:



Ramachandran G wrote:

Hi Justin,
Presently i too facing the same exact problem. I built the 
topology for a chromophore in the protein and entered all the new 
parameters in the .rtp, atp, hdb and defined the bonded and nonbonded 
parameters. Finally i got the following error.


Fatal error:
Atom OXT in residue CRIH 64 was not found in rtp entry CRIH with 27 atoms
while sorting atoms.

By this time if you identified the problem. Please help me too. Thank 
you.


I have filed a bugzilla.  If I can help the developers further diagnose 
the issue I will, but until that time, I'm awaiting a patch.


-Justin


Rama

On Mon, Sep 20, 2010 at 3:00 PM, Justin A. Lemkul <mailto:jalem...@vt.edu>> wrote:




Mark Abraham wrote:



- Original Message -
From: "Justin A. Lemkul" <mailto:jalem...@vt.edu>>

Date: Tuesday, September 21, 2010 6:30
    Subject: [gmx-users] Problem with pdb2gmx and a new residue
To: Gromacs Users' List mailto:gmx-users@gromacs.org>>

 >
 > Hi All,
 >
 > I'm trying to build a topology for a chromophore-containing
 > protein using Gromacs 4.5 and OPLS-AA.  The chromophore is
 > incorporated into the protein's backbone and the parameters 
all

 > come from a reputable publication, so I've done the following:
 >
 > 1. Created a new .rtp entry
 > 2. Created an .hdb entry
 > 3. Defined all nonbonded parameters for new atomtypes in the
 > .atp and ffnonbonded.itp file
 > 4. Defined all new bonded parameters in ffbonded.itp

I think you need to define CRO as Protein in residuetypes.dat so
that the pdb2gmx mechanism can deduce that it should form a
C-terminal peptide link in the absence of an end-of-chain marker.


I had done that, I forgot to mention it.  I tried using my modified
residuetypes.dat from both the working directory and in $GMXLIB.

Similarly, I have a modified peptide in what's become my "system
for generating pdb2gmx bugzilla reports", and with 4.5.1 and git
head, if I omit the residuetypes.dat definition I see

Identified residue ALA1 as a starting terminus.
Warning: Residue KCX193 in chain has different type (Other) from
starting residue ALA1 (Protein).
Warning: Residue ASP194 in chain has different type (Protein)
from starting residue ALA1 (Protein).
Warning: Residue ASP195 in chain has different type (Protein)
from starting residue ALA1 (Protein).
Warning: Residue GLU196 in chain has different type (Protein)
from starting residue ALA1 (Protein).
Warning: Residue ASN197 in chain has different type (Protein)
from starting residue ALA1 (Protein).
More than 5 unidentified residues at end of chain - disabling
further warnings.
Identified residue THR192 as a ending terminus.

---
Program pdb2gmx_master, VERSION 4.5.1-20100916-6d51340
Source code file: ../../../src/kernel/pdb2gmx.c, line: 655

Fatal error:
Atom OXT in residue VAL 467 was not found in rtp entry VAL with
16 atoms
while sorting atoms.
.
For more information and tips for troubleshooting, please check
the GROMACS
website at http://www.gromacs.org/Documentation/Errors
---

This is a bit different, inasmuch as I see the error on the
final residue of the first chain, rather then on the modified
residue, as you do. However pdb2gmx should cope better with this
case - clearly it's confused in the above messages about
non-matching types.

We should probably file a bugzilla, even if this fixes your
symptoms.


I figured as much, just thought I'd check to see if I'd missed
anything obvious.  Thanks for the reply.  I'll file a bugzilla.

-Justin

Mark
 > The coordinate file was then input into pdb2gmx with an
 > oplsaa.ff directory in the working directory.  I received
 > the following error (identical with version 4.5 and the most
 > recent git with release-4-5-patches):
 >
 > pdb2gmx -f struct.pdb
 > ...
 > ---
 > Program pdb2gmx, VERSION 4.5.1-20100920-03d181e
 > Source code file: pdb2gmx.c, line

Re: [gmx-users] Problem with pdb2gmx and a new residue

2010-09-20 Thread Justin A. Lemkul



Ramachandran G wrote:

Hi Justin,
Presently i too facing the same exact problem. I built the topology 
for a chromophore in the protein and entered all the new parameters in 
the .rtp, atp, hdb and defined the bonded and nonbonded parameters. 
Finally i got the following error.


Fatal error:
Atom OXT in residue CRIH 64 was not found in rtp entry CRIH with 27 atoms
while sorting atoms.

By this time if you identified the problem. Please help me too. Thank you.


I have filed a bugzilla.  If I can help the developers further diagnose the 
issue I will, but until that time, I'm awaiting a patch.


-Justin


Rama

On Mon, Sep 20, 2010 at 3:00 PM, Justin A. Lemkul <mailto:jalem...@vt.edu>> wrote:




Mark Abraham wrote:



- Original Message -
From: "Justin A. Lemkul" mailto:jalem...@vt.edu>>
Date: Tuesday, September 21, 2010 6:30
    Subject: [gmx-users] Problem with pdb2gmx and a new residue
To: Gromacs Users' List mailto:gmx-users@gromacs.org>>

 >
 > Hi All,
 >
 > I'm trying to build a topology for a chromophore-containing
 > protein using Gromacs 4.5 and OPLS-AA.  The chromophore is
 > incorporated into the protein's backbone and the parameters all
 > come from a reputable publication, so I've done the following:
 >
 > 1. Created a new .rtp entry
 > 2. Created an .hdb entry
 > 3. Defined all nonbonded parameters for new atomtypes in the
 > .atp and ffnonbonded.itp file
 > 4. Defined all new bonded parameters in ffbonded.itp

I think you need to define CRO as Protein in residuetypes.dat so
that the pdb2gmx mechanism can deduce that it should form a
C-terminal peptide link in the absence of an end-of-chain marker.


I had done that, I forgot to mention it.  I tried using my modified
residuetypes.dat from both the working directory and in $GMXLIB.

Similarly, I have a modified peptide in what's become my "system
for generating pdb2gmx bugzilla reports", and with 4.5.1 and git
head, if I omit the residuetypes.dat definition I see

Identified residue ALA1 as a starting terminus.
Warning: Residue KCX193 in chain has different type (Other) from
starting residue ALA1 (Protein).
Warning: Residue ASP194 in chain has different type (Protein)
from starting residue ALA1 (Protein).
Warning: Residue ASP195 in chain has different type (Protein)
from starting residue ALA1 (Protein).
Warning: Residue GLU196 in chain has different type (Protein)
from starting residue ALA1 (Protein).
Warning: Residue ASN197 in chain has different type (Protein)
from starting residue ALA1 (Protein).
More than 5 unidentified residues at end of chain - disabling
further warnings.
Identified residue THR192 as a ending terminus.

---
Program pdb2gmx_master, VERSION 4.5.1-20100916-6d51340
Source code file: ../../../src/kernel/pdb2gmx.c, line: 655

Fatal error:
Atom OXT in residue VAL 467 was not found in rtp entry VAL with
16 atoms
while sorting atoms.
.
For more information and tips for troubleshooting, please check
the GROMACS
website at http://www.gromacs.org/Documentation/Errors
---

This is a bit different, inasmuch as I see the error on the
final residue of the first chain, rather then on the modified
residue, as you do. However pdb2gmx should cope better with this
case - clearly it's confused in the above messages about
non-matching types.

We should probably file a bugzilla, even if this fixes your
symptoms.


I figured as much, just thought I'd check to see if I'd missed
anything obvious.  Thanks for the reply.  I'll file a bugzilla.

-Justin

Mark
 > The coordinate file was then input into pdb2gmx with an
 > oplsaa.ff directory in the working directory.  I received
 > the following error (identical with version 4.5 and the most
 > recent git with release-4-5-patches):
 >
 > pdb2gmx -f struct.pdb
 > ...
 > ---
 > Program pdb2gmx, VERSION 4.5.1-20100920-03d181e
 > Source code file: pdb2gmx.c, line: 655
 >
 > Fatal error:
 > Atom OXT in residue CRO 331 was not found in rtp entry CRO with
 > 39 atoms
 > while sorting atoms.
 

Re: [gmx-users] Problem with pdb2gmx and a new residue

2010-09-20 Thread Ramachandran G
Hi Justin,
Presently i too facing the same exact problem. I built the topology for
a chromophore in the protein and entered all the new parameters in the .rtp,
atp, hdb and defined the bonded and nonbonded parameters. Finally i got the
following error.

Fatal error:
Atom OXT in residue CRIH 64 was not found in rtp entry CRIH with 27 atoms
while sorting atoms.

By this time if you identified the problem. Please help me too. Thank you.
Rama

On Mon, Sep 20, 2010 at 3:00 PM, Justin A. Lemkul  wrote:

>
>
> Mark Abraham wrote:
>
>>
>>
>> - Original Message -
>> From: "Justin A. Lemkul" 
>> Date: Tuesday, September 21, 2010 6:30
>> Subject: [gmx-users] Problem with pdb2gmx and a new residue
>> To: Gromacs Users' List 
>>
>>  >
>>  > Hi All,
>>  >
>>  > I'm trying to build a topology for a chromophore-containing
>>  > protein using Gromacs 4.5 and OPLS-AA.  The chromophore is
>>  > incorporated into the protein's backbone and the parameters all
>>  > come from a reputable publication, so I've done the following:
>>  >
>>  > 1. Created a new .rtp entry
>>  > 2. Created an .hdb entry
>>  > 3. Defined all nonbonded parameters for new atomtypes in the
>>  > .atp and ffnonbonded.itp file
>>  > 4. Defined all new bonded parameters in ffbonded.itp
>>
>> I think you need to define CRO as Protein in residuetypes.dat so that the
>> pdb2gmx mechanism can deduce that it should form a C-terminal peptide link
>> in the absence of an end-of-chain marker.
>>
>>
> I had done that, I forgot to mention it.  I tried using my modified
> residuetypes.dat from both the working directory and in $GMXLIB.
>
>  Similarly, I have a modified peptide in what's become my "system for
>> generating pdb2gmx bugzilla reports", and with 4.5.1 and git head, if I omit
>> the residuetypes.dat definition I see
>>
>> Identified residue ALA1 as a starting terminus.
>> Warning: Residue KCX193 in chain has different type (Other) from starting
>> residue ALA1 (Protein).
>> Warning: Residue ASP194 in chain has different type (Protein) from
>> starting residue ALA1 (Protein).
>> Warning: Residue ASP195 in chain has different type (Protein) from
>> starting residue ALA1 (Protein).
>> Warning: Residue GLU196 in chain has different type (Protein) from
>> starting residue ALA1 (Protein).
>> Warning: Residue ASN197 in chain has different type (Protein) from
>> starting residue ALA1 (Protein).
>> More than 5 unidentified residues at end of chain - disabling further
>> warnings.
>> Identified residue THR192 as a ending terminus.
>> 
>> ---
>> Program pdb2gmx_master, VERSION 4.5.1-20100916-6d51340
>> Source code file: ../../../src/kernel/pdb2gmx.c, line: 655
>>
>> Fatal error:
>> Atom OXT in residue VAL 467 was not found in rtp entry VAL with 16 atoms
>> while sorting atoms.
>> .
>> For more information and tips for troubleshooting, please check the
>> GROMACS
>> website at http://www.gromacs.org/Documentation/Errors
>> ---
>>
>> This is a bit different, inasmuch as I see the error on the final residue
>> of the first chain, rather then on the modified residue, as you do. However
>> pdb2gmx should cope better with this case - clearly it's confused in the
>> above messages about non-matching types.
>>
>> We should probably file a bugzilla, even if this fixes your symptoms.
>>
>>
> I figured as much, just thought I'd check to see if I'd missed anything
> obvious.  Thanks for the reply.  I'll file a bugzilla.
>
> -Justin
>
>  Mark
>>  > The coordinate file was then input into pdb2gmx with an
>>  > oplsaa.ff directory in the working directory.  I received
>>  > the following error (identical with version 4.5 and the most
>>  > recent git with release-4-5-patches):
>>  >
>>  > pdb2gmx -f struct.pdb
>>  > ...
>>  > ---
>>  > Program pdb2gmx, VERSION 4.5.1-20100920-03d181e
>>  > Source code file: pdb2gmx.c, line: 655
>>  >
>>  > Fatal error:
>>  > Atom OXT in residue CRO 331 was not found in rtp entry CRO with
>>  > 39 atoms
>>  > while sorting atoms.
>>  > .
>>  > For more information and tips for troubleshooting, please check
>>  > the GROMACS
>>  > website at http://www.gromacs.org/Documentation/Errors

Re: [gmx-users] Problem with pdb2gmx and a new residue

2010-09-20 Thread Justin A. Lemkul



Mark Abraham wrote:



- Original Message -
From: "Justin A. Lemkul" 
Date: Tuesday, September 21, 2010 6:30
Subject: [gmx-users] Problem with pdb2gmx and a new residue
To: Gromacs Users' List 

 >
 > Hi All,
 >
 > I'm trying to build a topology for a chromophore-containing
 > protein using Gromacs 4.5 and OPLS-AA.  The chromophore is
 > incorporated into the protein's backbone and the parameters all
 > come from a reputable publication, so I've done the following:
 >
 > 1. Created a new .rtp entry
 > 2. Created an .hdb entry
 > 3. Defined all nonbonded parameters for new atomtypes in the
 > .atp and ffnonbonded.itp file
 > 4. Defined all new bonded parameters in ffbonded.itp

I think you need to define CRO as Protein in residuetypes.dat so that 
the pdb2gmx mechanism can deduce that it should form a C-terminal 
peptide link in the absence of an end-of-chain marker.




I had done that, I forgot to mention it.  I tried using my modified 
residuetypes.dat from both the working directory and in $GMXLIB.


Similarly, I have a modified peptide in what's become my "system for 
generating pdb2gmx bugzilla reports", and with 4.5.1 and git head, if I 
omit the residuetypes.dat definition I see


Identified residue ALA1 as a starting terminus.
Warning: Residue KCX193 in chain has different type (Other) from 
starting residue ALA1 (Protein).
Warning: Residue ASP194 in chain has different type (Protein) from 
starting residue ALA1 (Protein).
Warning: Residue ASP195 in chain has different type (Protein) from 
starting residue ALA1 (Protein).
Warning: Residue GLU196 in chain has different type (Protein) from 
starting residue ALA1 (Protein).
Warning: Residue ASN197 in chain has different type (Protein) from 
starting residue ALA1 (Protein).
More than 5 unidentified residues at end of chain - disabling further 
warnings.

Identified residue THR192 as a ending terminus.

---
Program pdb2gmx_master, VERSION 4.5.1-20100916-6d51340
Source code file: ../../../src/kernel/pdb2gmx.c, line: 655

Fatal error:
Atom OXT in residue VAL 467 was not found in rtp entry VAL with 16 atoms
while sorting atoms.
.
For more information and tips for troubleshooting, please check the GROMACS
website at http://www.gromacs.org/Documentation/Errors
---

This is a bit different, inasmuch as I see the error on the final 
residue of the first chain, rather then on the modified residue, as you 
do. However pdb2gmx should cope better with this case - clearly it's 
confused in the above messages about non-matching types.


We should probably file a bugzilla, even if this fixes your symptoms.



I figured as much, just thought I'd check to see if I'd missed anything obvious. 
 Thanks for the reply.  I'll file a bugzilla.


-Justin


Mark
 
 > The coordinate file was then input into pdb2gmx with an

 > oplsaa.ff directory in the working directory.  I received
 > the following error (identical with version 4.5 and the most
 > recent git with release-4-5-patches):
 >
 > pdb2gmx -f struct.pdb
 > ...
 > ---
 > Program pdb2gmx, VERSION 4.5.1-20100920-03d181e
 > Source code file: pdb2gmx.c, line: 655
 >
 > Fatal error:
 > Atom OXT in residue CRO 331 was not found in rtp entry CRO with
 > 39 atoms
 > while sorting atoms.
 > .
 > For more information and tips for troubleshooting, please check
 > the GROMACS
 > website at http://www.gromacs.org/Documentation/Errors
 > ---
 >
 > The CRO residue is my chromophore.  I'm wondering why
 > pdb2gmx is finding an OXT atom in the following coordinates:
 >
 > ...
 > ATOM   2528  N   LEU A
 > 330 -13.640  10.888 -25.907 
 > 1.00  0.00

 > ATOM   2529  CA  LEU A
 > 330 -12.513  11.013 -26.852 
 > 1.00  0.00

 > ATOM   2530  C   LEU A
 > 330 -11.281  10.183 -26.416 
 > 1.00  0.00

 > ATOM   2531  O   LEU A
 > 330 -10.625   9.588 -
 > 27.277  1.00  0.00
 > ATOM   2532  CB  LEU A
 > 330 -12.159  12.493 -27.066 
 > 1.00  0.00

 > ATOM   2533  CG  LEU A
 > 330 -13.206  13.415 -27.691 
 > 1.00  0.00

 > ATOM   2534  CD1 LEU A
 > 330 -12.913  14.905 -27.393 
 > 1.00  0.00

 > ATOM   2535  CD2 LEU A
 > 330 -13.400  13.160 -29.207 
 > 1.00  0.00

 > ATOM   2536  N   CRO A
 > 331 -10.669   9.142 -
 > 25.611  1.00  0.00
 > ATOM   2537  CE  CRO A
 > 331  -7.407  12.564 -
 > 27.240  1.00  0.00
 > ATOM   2538  SD  CRO A
 > 331  -8.035  12.603 -
 > 25.595  1.00  0.00
 > ATOM   2539  CG1 CRO A
 > 331  -8.731  10.996 -
 > 25.519  1.00  0.00
 > ATOM   2540  CB1 CRO A
 > 331  -9.6

Re: [gmx-users] Problem with pdb2gmx and a new residue

2010-09-20 Thread Mark Abraham


- Original Message -
From: "Justin A. Lemkul" 
Date: Tuesday, September 21, 2010 6:30
Subject: [gmx-users] Problem with pdb2gmx and a new residue
To: Gromacs Users' List 

> 
> Hi All,
> 
> I'm trying to build a topology for a chromophore-containing 
> protein using Gromacs 4.5 and OPLS-AA.  The chromophore is 
> incorporated into the protein's backbone and the parameters all 
> come from a reputable publication, so I've done the following:
> 
> 1. Created a new .rtp entry
> 2. Created an .hdb entry
> 3. Defined all nonbonded parameters for new atomtypes in the 
> .atp and ffnonbonded.itp file
> 4. Defined all new bonded parameters in ffbonded.itp

I think you need to define CRO as Protein in residuetypes.dat so that the 
pdb2gmx mechanism can deduce that it should form a C-terminal peptide link in 
the absence of an end-of-chain marker.

Similarly, I have a modified peptide in what's become my "system for generating 
pdb2gmx bugzilla reports", and with 4.5.1 and git head, if I omit the 
residuetypes.dat definition I see

Identified residue ALA1 as a starting terminus.
Warning: Residue KCX193 in chain has different type (Other) from starting 
residue ALA1 (Protein).
Warning: Residue ASP194 in chain has different type (Protein) from starting 
residue ALA1 (Protein).
Warning: Residue ASP195 in chain has different type (Protein) from starting 
residue ALA1 (Protein).
Warning: Residue GLU196 in chain has different type (Protein) from starting 
residue ALA1 (Protein).
Warning: Residue ASN197 in chain has different type (Protein) from starting 
residue ALA1 (Protein).
More than 5 unidentified residues at end of chain - disabling further warnings.
Identified residue THR192 as a ending terminus.

---
Program pdb2gmx_master, VERSION 4.5.1-20100916-6d51340
Source code file: ../../../src/kernel/pdb2gmx.c, line: 655

Fatal error:
Atom OXT in residue VAL 467 was not found in rtp entry VAL with 16 atoms
while sorting atoms.
.
For more information and tips for troubleshooting, please check the GROMACS
website at http://www.gromacs.org/Documentation/Errors
---

This is a bit different, inasmuch as I see the error on the final residue of 
the first chain, rather then on the modified residue, as you do. However 
pdb2gmx should cope better with this case - clearly it's confused in the above 
messages about non-matching types.

We should probably file a bugzilla, even if this fixes your symptoms.

Mark
 
> The coordinate file was then input into pdb2gmx with an 
> oplsaa.ff directory in the working directory.  I received 
> the following error (identical with version 4.5 and the most 
> recent git with release-4-5-patches):
> 
> pdb2gmx -f struct.pdb
> ...
> ---
> Program pdb2gmx, VERSION 4.5.1-20100920-03d181e
> Source code file: pdb2gmx.c, line: 655
> 
> Fatal error:
> Atom OXT in residue CRO 331 was not found in rtp entry CRO with 
> 39 atoms
> while sorting atoms.
> .
> For more information and tips for troubleshooting, please check 
> the GROMACS
> website at http://www.gromacs.org/Documentation/Errors
> ---
> 
> The CRO residue is my chromophore.  I'm wondering why 
> pdb2gmx is finding an OXT atom in the following coordinates:
> 
> ...
> ATOM   2528  N   LEU A 
> 330 -13.640  10.888 -25.907  
> 1.00  0.00
> ATOM   2529  CA  LEU A 
> 330 -12.513  11.013 -26.852  
> 1.00  0.00
> ATOM   2530  C   LEU A 
> 330 -11.281  10.183 -26.416  
> 1.00  0.00
> ATOM   2531  O   LEU A 
> 330 -10.625   9.588 -
> 27.277  1.00  0.00
> ATOM   2532  CB  LEU A 
> 330 -12.159  12.493 -27.066  
> 1.00  0.00
> ATOM   2533  CG  LEU A 
> 330 -13.206  13.415 -27.691  
> 1.00  0.00
> ATOM   2534  CD1 LEU A 
> 330 -12.913  14.905 -27.393  
> 1.00  0.00
> ATOM   2535  CD2 LEU A 
> 330 -13.400  13.160 -29.207  
> 1.00  0.00
> ATOM   2536  N   CRO A 
> 331 -10.669   9.142 -
> 25.611  1.00  0.00
> ATOM   2537  CE  CRO A 
> 331  -7.407  12.564 -
> 27.240  1.00  0.00
> ATOM   2538  SD  CRO A 
> 331  -8.035  12.603 -
> 25.595  1.00  0.00
> ATOM   2539  CG1 CRO A 
> 331  -8.731  10.996 -
> 25.519  1.00  0.00
> ATOM   2540  CB1 CRO A 
> 331  -9.618  10.846 -
> 24.279  1.00  0.00
> ATOM   2541  CA1 CRO A 
> 331 -10.227   9.470 -
> 24.406  1.00  0.00
> ATOM   2542  C1  CRO A 
> 331 -10.304   8.516 -
> 23.260  1.00  0.00
> ATOM   2543  N2  CRO A 
> 331  -9.873   8.765 -
> 21.981  1.00  0.00
> ATOM   2544  OH  CRO A 
> 331  -8.594  11.111 -
> 15.969  1.00  0.00
&g

Re: [gmx-users] Problem with pdb2gmx and a new residue

2010-09-20 Thread Mark Abraham
  - Original Message - From: "Justin A. Lemkul"  Date: 
Tuesday, September 21, 2010 6:30 Subject: [gmx-users] Problem with pdb2gmx and 
a new residue To: Gromacs Users' List   >  > Hi All, >  
> I'm trying to build a topology for a chromophore-containing  > protein using 
Gromacs 4.5 and OPLS-AA.  The chromophore is  > incorporated into the protein's 
backbone and the parameters all  > come from a reputable publication, so I've 
done the following: >  > 1. Created a new .rtp entry > 2. Created an .hdb entry 
> 3. Defined all nonbonded parameters for new atomtypes in the  > .atp and 
ffnonbonded.itp file > 4. Defined all new bonded parameters in ffbonded.itp  I 
think you need to define CRO as Protein in residuetypes.dat so that the pdb2gmx 
mechanism can deduce that it should form a C-terminal peptide link in the 
absence of an end-of-chain marker.  Similarly, I have a modified peptide in 
what's become my "system for generating pdb2gmx bugzilla reports", and with 
4.5.1 and git head, if I omit the residuetypes.dat definition I see  Identified 
residue ALA1 as a starting terminus. Warning: Residue KCX193 in chain has 
different type (Other) from starting residue ALA1 (Protein). Warning: Residue 
ASP194 in chain has different type (Protein) from starting residue ALA1 
(Protein). Warning: Residue ASP195 in chain has different type (Protein) from 
starting residue ALA1 (Protein). Warning: Residue GLU196 in chain has different 
type (Protein) from starting residue ALA1 (Protein). Warning: Residue ASN197 in 
chain has different type (Protein) from starting residue ALA1 (Protein). More 
than 5 unidentified residues at end of chain - disabling further warnings. 
Identified residue THR192 as a ending terminus.  
--- Program pdb2gmx_master, 
VERSION 4.5.1-20100916-6d51340 Source code file: ../../../src/kernel/pdb2gmx.c, 
line: 655  Fatal error: Atom OXT in residue VAL 467 was not found in rtp entry 
VAL with 16 atoms while sorting atoms. . For more information and tips for 
troubleshooting, please check the GROMACS website at 
http://www.gromacs.org/Documentation/Errors 
---  This is a bit 
different, inasmuch as I see the error on the final residue of the first chain, 
rather then on the modified residue, as you do. However pdb2gmx should cope 
better with this case - clearly it's confused in the above messages about 
non-matching types.  We should probably file a bugzilla, even if this fixes 
your symptoms.  Mark   > The coordinate file was then input into pdb2gmx with 
an  > oplsaa.ff directory in the working directory.  I received  > the 
following error (identical with version 4.5 and the most  > recent git with 
release-4-5-patches): >  > pdb2gmx -f struct.pdb > ... > 
--- > Program pdb2gmx, 
VERSION 4.5.1-20100920-03d181e > Source code file: pdb2gmx.c, line: 655 >  > 
Fatal error: > Atom OXT in residue CRO 331 was not found in rtp entry CRO with  
> 39 atoms > while sorting atoms. > . > For more information and tips for 
troubleshooting, please check  > the GROMACS > website at 
http://www.gromacs.org/Documentation/Errors > 
--- >  > The CRO residue is 
my chromophore.  I'm wondering why  > pdb2gmx is finding an OXT atom in the 
following coordinates: >  > ... > ATOM   2528  N   LEU A  > 330 -13.640  
10.888 -25.907   > 1.00  0.00 > ATOM   2529  CA  LEU A  > 330 -12.513  
11.013 -26.852   > 1.00  0.00 > ATOM   2530  C   LEU A  > 330 -11.281  
10.183 -26.416   > 1.00  0.00 > ATOM   2531  O   LEU A  > 330 -10.625   
9.588 - > 27.277  1.00  0.00 > ATOM   2532  CB  LEU A  > 330 -12.159  
12.493 -27.066   > 1.00  0.00 > ATOM   2533  CG  LEU A  > 330 -13.206  
13.415 -27.691   > 1.00  0.00 > ATOM   2534  CD1 LEU A  > 330 -12.913  
14.905 -27.393   > 1.00  0.00 > ATOM   2535  CD2 LEU A  > 330 -13.400  
13.160 -29.207   > 1.00  0.00 > ATOM   2536  N   CRO A  > 331 -10.669   
9.142 - > 25.611  1.00  0.00 > ATOM   2537  CE  CRO A  > 331  -7.407  
12.564 - > 27.240  1.00  0.00 > ATOM   2538  SD  CRO A  > 331  -8.035  
12.603 - > 25.595  1.00  0.00 > ATOM   2539  CG1 CRO A  > 331  -8.731  
10.996 - > 25.519  1.00  0.00 > ATOM   2540  CB1 CRO A  > 331  -9.618  
10.846 - > 24.279  1.00  0.00 > ATOM   2541  CA1 CRO A  > 331 -10.227   
9.470 - > 24.406  1.00  0.00 > ATOM   2542  C1  CRO A  > 331 -10.304   
8.516 - > 23.260  1.00  0.00 > ATOM   2543  N2  CRO A  > 331  -9.873   
8.765 - > 21.981  1.00  0.00 > ATOM   2544  OH  CRO A  > 

[gmx-users] Problem with pdb2gmx and a new residue

2010-09-20 Thread Justin A. Lemkul


Hi All,

I'm trying to build a topology for a chromophore-containing protein using 
Gromacs 4.5 and OPLS-AA.  The chromophore is incorporated into the protein's 
backbone and the parameters all come from a reputable publication, so I've done 
the following:


1. Created a new .rtp entry
2. Created an .hdb entry
3. Defined all nonbonded parameters for new atomtypes in the .atp and 
ffnonbonded.itp file

4. Defined all new bonded parameters in ffbonded.itp

The coordinate file was then input into pdb2gmx with an oplsaa.ff directory in 
the working directory.  I received the following error (identical with version 
4.5 and the most recent git with release-4-5-patches):


pdb2gmx -f struct.pdb
...
---
Program pdb2gmx, VERSION 4.5.1-20100920-03d181e
Source code file: pdb2gmx.c, line: 655

Fatal error:
Atom OXT in residue CRO 331 was not found in rtp entry CRO with 39 atoms
while sorting atoms.
.
For more information and tips for troubleshooting, please check the GROMACS
website at http://www.gromacs.org/Documentation/Errors
---

The CRO residue is my chromophore.  I'm wondering why pdb2gmx is finding an OXT 
atom in the following coordinates:


...
ATOM   2528  N   LEU A 330 -13.640  10.888 -25.907  1.00  0.00
ATOM   2529  CA  LEU A 330 -12.513  11.013 -26.852  1.00  0.00
ATOM   2530  C   LEU A 330 -11.281  10.183 -26.416  1.00  0.00
ATOM   2531  O   LEU A 330 -10.625   9.588 -27.277  1.00  0.00
ATOM   2532  CB  LEU A 330 -12.159  12.493 -27.066  1.00  0.00
ATOM   2533  CG  LEU A 330 -13.206  13.415 -27.691  1.00  0.00
ATOM   2534  CD1 LEU A 330 -12.913  14.905 -27.393  1.00  0.00
ATOM   2535  CD2 LEU A 330 -13.400  13.160 -29.207  1.00  0.00
ATOM   2536  N   CRO A 331 -10.669   9.142 -25.611  1.00  0.00
ATOM   2537  CE  CRO A 331  -7.407  12.564 -27.240  1.00  0.00
ATOM   2538  SD  CRO A 331  -8.035  12.603 -25.595  1.00  0.00
ATOM   2539  CG1 CRO A 331  -8.731  10.996 -25.519  1.00  0.00
ATOM   2540  CB1 CRO A 331  -9.618  10.846 -24.279  1.00  0.00
ATOM   2541  CA1 CRO A 331 -10.227   9.470 -24.406  1.00  0.00
ATOM   2542  C1  CRO A 331 -10.304   8.516 -23.260  1.00  0.00
ATOM   2543  N2  CRO A 331  -9.873   8.765 -21.981  1.00  0.00
ATOM   2544  OH  CRO A 331  -8.594  11.111 -15.969  1.00  0.00
ATOM   2545  CD2 CRO A 331  -9.219   9.756 -19.205  1.00  0.00
ATOM   2546  CE2 CRO A 331  -8.888  10.677 -18.207  1.00  0.00
ATOM   2547  CZ  CRO A 331  -8.898  10.286 -16.863  1.00  0.00
ATOM   2548  CE1 CRO A 331  -9.219   8.975 -16.518  1.00  0.00
ATOM   2549  CD1 CRO A 331  -9.549   8.056 -17.509  1.00  0.00
ATOM   2550  CG2 CRO A 331  -9.557   8.447 -18.848  1.00  0.00
ATOM   2551  CB2 CRO A 331  -9.880   7.417 -19.857  1.00  0.00
ATOM   2552  CA2 CRO A 331 -10.149   7.645 -21.293  1.00  0.00
ATOM   2553  C2  CRO A 331 -10.726   6.753 -22.143  1.00  0.00
ATOM   2554  O2  CRO A 331 -11.108   5.574 -21.819  1.00  0.00
ATOM   2555  N3  CRO A 331 -10.810   7.255 -23.355  1.00  0.00
ATOM   2556  CA3 CRO A 331 -11.435   6.545 -24.488  1.00  0.00
ATOM   2557  C   CRO A 331 -10.492   6.111 -25.580  1.00  0.00
ATOM   2558  O   CRO A 331 -10.993   5.596 -26.570  1.00  0.00
ATOM   2559  N   VAL A 332  -9.265   5.813 -25.096  1.00  0.00
ATOM   2560  CA  VAL A 332  -8.235   4.899 -25.607  1.00  0.00
ATOM   2561  C   VAL A 332  -7.512   4.308 -24.397  1.00  0.00
ATOM   2562  O   VAL A 332  -6.351   4.567 -24.155  1.00  0.00
ATOM   2563  CB  VAL A 332  -7.312   5.633 -26.627  1.00  0.00
ATOM   2564  CG1 VAL A 332  -8.127   5.980 -27.896  1.00  0.00
ATOM   2565  CG2 VAL A 332  -6.687   6.887 -26.051  1.00  0.00
...

Any ideas on what's going on?  I can upload a bugzilla if necessary, I just 
thought I'd report here first since I'm not sure if I'm doing something wrong 
with respect to the many new pdb2gmx features.


-Justin

--


Justin A. Lemkul
Ph.D. Candidate
ICTAS Doctoral Scholar
MILES-IGERT Trainee
Department of Biochemistry
Virginia Tech
Blacksburg, VA
jalemkul[at]vt.edu | (540) 231-9080
http://www.bevanlab.biochem.vt.edu/Pages/Personal/justin


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