[phenixbb] NAG-NAG link definition seems to have no effect

Benjamin Stauch bs448c at gmail.com
Thu Jun 12 01:55:53 PDT 2014


Thanks for your quick reply! However now I get the following error message,

"Fatal problems interpreting model file: NUmber of atoms with unkown
nonbonded energy type symbols: 3 Please edit the model file to resolve the
problems nd/org supply a CIF file with matching restraint definitions,
along with apply_cif_modification and apply_cif_link parameter definitions
if necessary. Alternatively, to continue despite this problem use:
stop_for_unknown=False"

the log file says,



  Monomer Library directory:
    "c:\phenix-1.8.4-1496\phenix-1.8.4-1496_sources\chem_data\mon_lib"
  Total number of atoms: 11298
  Number of models: 1
  apply_cif_link:
    data_link: NAG-ASN
      mod_id_1: DEL-O1
      mod_id_2: DEL-HD22
    residue_selection_1: chain A and resname NAG and resid 401
    residue_selection_2: chain A and resname ASN and resid 74
  apply_cif_link:
    data_link: BETA1-4
      mod_id_1: DEL-HO4
      mod_id_2: DEL-O1
    residue_selection_1: chain A and resname NAG and resid 401
    residue_selection_2: chain A and resname NAG and resid 402
  apply_cif_link:
    data_link: NAG-ASN
      mod_id_1: DEL-O1
      mod_id_2: DEL-HD22
    residue_selection_1: chain B and resname NAG and resid 401
    residue_selection_2: chain B and resname ASN and resid 74
  apply_cif_link:
    data_link: BETA1-4
      mod_id_1: DEL-HO4
      mod_id_2: DEL-O1
    residue_selection_1: chain B and resname NAG and resid 401
    residue_selection_2: chain B and resname NAG and resid 402
  Model: ""
    Number of chains: 4
    Chain: "A"
      Number of atoms: 5075
      Number of conformers: 2
      Conformer: "A"
        Number of residues, atoms: 319, 4675
          Unusual residues: {'NAG%DEL-O1%DEL-HO4': 1, 'NAG%DEL-O1': 1}
          Unexpected atoms: {'NAG%DEL-O1%DEL-HO4,HO4': 1}
          Classifications: {'undetermined': 2, 'peptide': 317}
          Modifications used: {'DEL-HD22': 1, 'DEL-O1': 2, 'DEL-HO4': 1,
'NH3': 1}
          Link IDs: {'PTRANS': 27, None: 2, 'TRANS': 287, 'PCIS': 2}
            Not linked:
              pdbres="ALA A 317 " segid="A   "
              pdbres="NAG A 401 " segid="A   "
            Not linked:
              pdbres="NAG A 401 " segid="A   "
              pdbres="NAG A 402 " segid="A   "
      Conformer: "B"
        Number of residues, atoms: 319, 4675
          Unusual residues: {'NAG%DEL-O1%DEL-HO4': 1, 'NAG%DEL-O1': 1}
          Unexpected atoms: {'NAG%DEL-O1%DEL-HO4,HO4': 1}
          Classifications: {'undetermined': 2, 'peptide': 317}
          Modifications used: {'DEL-HD22': 1, 'DEL-O1': 2, 'DEL-HO4': 1,
'NH3': 1}
          Link IDs: {'PTRANS': 27, None: 2, 'TRANS': 287, 'PCIS': 2}
            Not linked:
              pdbres="ALA A 317 " segid="A   "
              pdbres="NAG A 401 " segid="A   "
            Not linked:
              pdbres="NAG A 401 " segid="A   "
              pdbres="NAG A 402 " segid="A   "
          bond proxies already assigned to first conformer: 4309
    Chain: "B"
[...]
    Chain: "C"
[...]
  Residues with excluded nonbonded symmetry interactions: 26
    residue:
[...]
  Number of atoms with unknown nonbonded energy type symbols: 3
    "ATOM   5046  HO4 NAG A 401 .*.A    H  "
    "ATOM   6215 HD22 ASN B  74 .*.B    H  "
    "ATOM  10057  HO4 NAG B 401 .*.B    H  "
  Time building chain proxies: 4.05, per 1000 atoms: 0.36


Deleting these atoms (NAG HO4 and ASN HD22) manually doesn't seem to do the
trick - as I explicitly want to refine hydrogens I reckon they are added
back on. Also it seems BETA1-4 wants to desperately link NAG O4 to NAG O1
which doesn't exist .. Shuld I manually define my NAG-NAG link instead of
using the BETA1-4?

Thanks again!

B


2014-06-12 10:54 GMT+02:00 Benjamin Stauch <bs448c at gmail.com>:

> Thanks for your quick reply! However now I get the following error message,
>
> "Fatal problems interpreting model file: NUmber of atoms with unkown
> nonbonded energy type symbols: 3 Please edit the model file to resolve the
> problems nd/org supply a CIF file with matching restraint definitions,
> along with apply_cif_modification and apply_cif_link parameter definitions
> if necessary. Alternatively, to continue despite this problem use:
> stop_for_unknown=False"
>
> the log file says,
>
>
>
>   Monomer Library directory:
>     "c:\phenix-1.8.4-1496\phenix-1.8.4-1496_sources\chem_data\mon_lib"
>   Total number of atoms: 11298
>   Number of models: 1
>   apply_cif_link:
>     data_link: NAG-ASN
>       mod_id_1: DEL-O1
>       mod_id_2: DEL-HD22
>     residue_selection_1: chain A and resname NAG and resid 401
>     residue_selection_2: chain A and resname ASN and resid 74
>   apply_cif_link:
>     data_link: BETA1-4
>       mod_id_1: DEL-HO4
>       mod_id_2: DEL-O1
>     residue_selection_1: chain A and resname NAG and resid 401
>     residue_selection_2: chain A and resname NAG and resid 402
>   apply_cif_link:
>     data_link: NAG-ASN
>       mod_id_1: DEL-O1
>       mod_id_2: DEL-HD22
>     residue_selection_1: chain B and resname NAG and resid 401
>     residue_selection_2: chain B and resname ASN and resid 74
>   apply_cif_link:
>     data_link: BETA1-4
>       mod_id_1: DEL-HO4
>       mod_id_2: DEL-O1
>     residue_selection_1: chain B and resname NAG and resid 401
>     residue_selection_2: chain B and resname NAG and resid 402
>   Model: ""
>     Number of chains: 4
>     Chain: "A"
>       Number of atoms: 5075
>       Number of conformers: 2
>       Conformer: "A"
>         Number of residues, atoms: 319, 4675
>           Unusual residues: {'NAG%DEL-O1%DEL-HO4': 1, 'NAG%DEL-O1': 1}
>           Unexpected atoms: {'NAG%DEL-O1%DEL-HO4,HO4': 1}
>           Classifications: {'undetermined': 2, 'peptide': 317}
>           Modifications used: {'DEL-HD22': 1, 'DEL-O1': 2, 'DEL-HO4': 1,
> 'NH3': 1}
>           Link IDs: {'PTRANS': 27, None: 2, 'TRANS': 287, 'PCIS': 2}
>             Not linked:
>               pdbres="ALA A 317 " segid="A   "
>               pdbres="NAG A 401 " segid="A   "
>             Not linked:
>               pdbres="NAG A 401 " segid="A   "
>               pdbres="NAG A 402 " segid="A   "
>       Conformer: "B"
>         Number of residues, atoms: 319, 4675
>           Unusual residues: {'NAG%DEL-O1%DEL-HO4': 1, 'NAG%DEL-O1': 1}
>           Unexpected atoms: {'NAG%DEL-O1%DEL-HO4,HO4': 1}
>           Classifications: {'undetermined': 2, 'peptide': 317}
>           Modifications used: {'DEL-HD22': 1, 'DEL-O1': 2, 'DEL-HO4': 1,
> 'NH3': 1}
>           Link IDs: {'PTRANS': 27, None: 2, 'TRANS': 287, 'PCIS': 2}
>             Not linked:
>               pdbres="ALA A 317 " segid="A   "
>               pdbres="NAG A 401 " segid="A   "
>             Not linked:
>               pdbres="NAG A 401 " segid="A   "
>               pdbres="NAG A 402 " segid="A   "
>           bond proxies already assigned to first conformer: 4309
>     Chain: "B"
> [...]
>     Chain: "C"
> [...]
>   Residues with excluded nonbonded symmetry interactions: 26
>     residue:
> [...]
>   Number of atoms with unknown nonbonded energy type symbols: 3
>     "ATOM   5046  HO4 NAG A 401 .*.A    H  "
>     "ATOM   6215 HD22 ASN B  74 .*.B    H  "
>     "ATOM  10057  HO4 NAG B 401 .*.B    H  "
>   Time building chain proxies: 4.05, per 1000 atoms: 0.36
>
>
> Deleting these atoms (NAG HO4 and ASN HD22) manually doesn't seem to do
> the trick - as I explicitly want to refine hydrogens I reckon they are
> added back on. Also it seems BETA1-4 wants to desperately link NAG O4 to
> NAG O1 which doesn't exist .. Shuld I manually define my NAG-NAG link
> instead of using the BETA1-4?
>
> Thanks again!
>
> B
>
>
>
> 2014-06-12 2:12 GMT+02:00 Nathaniel Echols <nechols at lbl.gov>:
>
> On Wed, Jun 11, 2014 at 5:05 PM, Benjamin Stauch <bs448c at gmail.com> wrote:
>>
>>> I want to refine a model that has two NAGs linked to an Asn - the sugars
>>> are already part of my initial coordinate file, but upon refinement the
>>> link between the NAGs gets lost. I have defined a cif_link file as follows
>>> that I load (using the GUI),
>>>
>>>      apply_cif_link {
>>>        data_link = "NAG-ASN"
>>>        residue_selection_1 = "chain A and resname NAG and resid 401"
>>>        residue_selection_2 = "chain A and resname ASN and resid 74"
>>>      }
>>>      apply_cif_link {
>>>        data_link = "BETA1-4"
>>>        residue_selection_1 = "chain A and resname NAG and resid 401"
>>>        residue_selection_2 = "chain A and resname NAG and resid 402"
>>>      }
>>>
>>
>> Okay, I think this may be part of the problem - you are missing the outer
>> "scope" for these parameter blocks, so they are not processed correctly.
>>  If you change "apply_cif_link" to
>> "refinement.pdb_interpretation.apply_cif_link" in both places it may fix
>> the problem.
>>
>> Refinement doesn't crash or produce errors as far as I can see, however
>>> when checking the MolProbity output after refinement, it complains of
>>> missing atoms O1 in NAG 401 and 402. (Not sure if this is relevant)
>>>
>>
>> Sorry, this is actually my bug (those atoms should not be included in
>> covalently linked sugars), and I think I still have an email complaining
>> about this in my inbox from late 2012.  I need to overhaul that bit of code
>> anyway so I will see if Nigel and I can come up with something smarter.
>>
>> -Nat
>>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://phenix-online.org/pipermail/phenixbb/attachments/20140612/c1871c72/attachment.htm>


More information about the phenixbb mailing list