[phenixbb] Nitric Oxide ligand keeps getting pushed far away from specified links in CIF

Nigel Moriarty nwmoriarty at lbl.gov
Mon Nov 28 14:43:52 PST 2011


Yarrow

The space is a problem. Can you send me the PDB model (off-line) so I
can ensure that metal_coordinates is getting it right?

Nigel

On Mon, Nov 28, 2011 at 2:28 PM, Dale Tronrud <det102 at uoxray.uoregon.edu> wrote:
>
>   I'm not sure this is your problem but I noticed that you have
> a space in the middle of "NO -HEM" where ever it occurs.  I don't
> think it is supposed to.
>
> Dale Tronrud
>
> On 11/28/11 14:19, Yarrow Madrona wrote:
>> Hello,
>>
>> I am having some trouble refining a structure with Nitric Oxide
>> coordinated to the Heme Fe. I attempted to merge two Cif files. One for
>> another ligand (CNL) and one for NO (NO.cif). I have saved the merged file
>> as CinNO2.cif. In the defualt refinement I type the following into the
>> command line:
>>
>>
>> Mymodel.mtz mymodel.pdb CinNO2.cif
>>
>> Phenix refine runs fine without any errors but pushes the NO much further
>> than the 1.9 angstrom specified by the links in the cif file. I have
>> pasted the contents of the cif file below. The NO, Fe links are at the end
>> of the file. Thank you for any help you can provide.
>>
>> -Yarrow
>>
>>
>>
>> # Files merged : Tue Oct  4 10:11:22 2011
>> #
>> #     CNL.cif
>> #     NO.cif
>> #
>> data_comp_list
>> loop_
>> _chem_comp.id
>> _chem_comp.three_letter_code
>> _chem_comp.name
>> _chem_comp.group
>> _chem_comp.number_atoms_all
>> _chem_comp.number_atoms_nh
>> _chem_comp.desc_level
>> CNL CNL Unknown                   ligand 29 11 .
>> NO NO Unknown                   ligand 2 2 .
>> #
>> data_comp_CNL
>> #
>> loop_
>> _chem_comp_atom.comp_id
>> _chem_comp_atom.atom_id
>> _chem_comp_atom.type_symbol
>> _chem_comp_atom.type_energy
>> _chem_comp_atom.partial_charge
>> _chem_comp_atom.x
>> _chem_comp_atom.y
>> _chem_comp_atom.z
>> CNL         C1     C   CT    .         55.3085   -9.1280  -43.0216
>> CNL         C2     C   CH2   .         55.6432  -10.5699  -43.1750
>> CNL         C3     C   CH2   .         54.6509  -11.3139 -43.9725
>> CNL         C4     C   CH1   .         53.4902  -10.4784  -44.3504
>> CNL         C5     C   CH2   .         53.9278   -9.3349  -45.0693
>> CNL         C6     C   CH2   .         54.8932   -8.4964  -44.3064
>> CNL         C7     C   CH3   .         56.3801   -8.3679  -42.3275
>> CNL         C8     C   CT    .         52.9353   -9.9244  -43.0573
>> CNL         C9     C   CH3   .         52.3495  -11.0301  -42.2453
>> CNL         C10    C   CH3   .         51.8314   -8.9341  -43.2982
>> CNL         O      O   O2    .         54.1049   -9.2461  -42.2221
>> #
>> loop_
>> _chem_comp_bond.comp_id
>> _chem_comp_bond.atom_id_1
>> _chem_comp_bond.atom_id_2
>> _chem_comp_bond.type
>> _chem_comp_bond.value_dist
>> _chem_comp_bond.value_dist_esd
>> CNL   C1      C2    single        1.488 0.020
>> CNL   C1      C6    single        1.491 0.020
>> CNL   C1      C7    single        1.486 0.020
>> CNL   C1      O     single        1.450 0.020
>> CNL   C2      C3    single        1.475 0.020
>> CNL   C3      C4    single        1.479 0.020
>> CNL   C4      C5    single        1.420 0.020
>> CNL   C4      C8    single        1.512 0.020
>> CNL   C5      C6    single        1.489 0.020
>> CNL   C8      C9    single        1.492 0.020
>> CNL   C8      C10   single        1.502 0.020
>> CNL   C8      O     single        1.589 0.020
>> #
>> loop_
>> _chem_comp_angle.comp_id
>> _chem_comp_angle.atom_id_1
>> _chem_comp_angle.atom_id_2
>> _chem_comp_angle.atom_id_3
>> _chem_comp_angle.value_angle
>> _chem_comp_angle.value_angle_esd
>> CNL   C3      C2      C1          113.16 3.000
>> CNL   C5      C6      C1          112.56 3.000
>> CNL   C8      O       C1          110.85 3.000
>> CNL   C6      C1      C2          112.60 3.000
>> CNL   C7      C1      C2          112.43 3.000
>> CNL   O       C1      C2           99.48 3.000
>> CNL   C4      C3      C2          112.41 3.000
>> CNL   C5      C4      C3          110.02 3.000
>> CNL   C8      C4      C3          106.05 3.000
>> CNL   C6      C5      C4          113.20 3.000
>> CNL   C9      C8      C4          109.75 3.000
>> CNL   C10     C8      C4          111.96 3.000
>> CNL   O       C8      C4          109.61 3.000
>> CNL   C8      C4      C5          104.53 3.000
>> CNL   C7      C1      C6          112.76 3.000
>> CNL   O       C1      C6          106.18 3.000
>> CNL   O       C1      C7          112.51 3.000
>> CNL   C10     C8      C9          106.70 3.000
>> CNL   O       C8      C9          108.62 3.000
>> CNL   O       C8      C10         110.10 3.000
>> #
>> loop_
>> _chem_comp_tor.comp_id
>> _chem_comp_tor.id
>> _chem_comp_tor.atom_id_1
>> _chem_comp_tor.atom_id_2
>> _chem_comp_tor.atom_id_3
>> _chem_comp_tor.atom_id_4
>> _chem_comp_tor.value_angle
>> _chem_comp_tor.value_angle_esd
>> _chem_comp_tor.period
>> CNL Var_01         C4      C8      O       C1           10.40  30.0 3
>> CNL Var_02         C9      C8      O       C1          130.31  30.0 3
>> CNL Var_03         C10     C8      O       C1         -113.19  30.0 3
>> #
>> loop_
>> _chem_comp_chir.comp_id
>> _chem_comp_chir.id
>> _chem_comp_chir.atom_id_centre
>> _chem_comp_chir.atom_id_1
>> _chem_comp_chir.atom_id_2
>> _chem_comp_chir.atom_id_3
>> _chem_comp_chir.volume_sign
>> CNL chir_01   C1      C6      C7      O     both
>> CNL chir_02   C4      C3      C5      C8    both
>> #
>> data_comp__NO
>> #
>> loop_
>> _chem_comp_atom.comp_id
>> _chem_comp_atom.atom_id
>> _chem_comp_atom.type_symbol
>> _chem_comp_atom.type_energy
>> _chem_comp_atom.partial_charge
>> _chem_comp_atom.x
>> _chem_comp_atom.y
>> _chem_comp_atom.z
>> NO          N      N   N     .         -5.7690    4.3760   32.3600
>> NO          O      O   O     .         -4.8990    5.2460   32.3600
>> #
>> loop_
>> _chem_comp_bond.comp_id
>> _chem_comp_bond.atom_id_1
>> _chem_comp_bond.atom_id_2
>> _chem_comp_bond.type
>> _chem_comp_bond.value_dist
>> _chem_comp_bond.value_dist_esd
>> NO   N       O     double        1.150 0.02
>> #
>> data_link_list
>> loop_
>> _chem_link.id
>> _chem_link.comp_id_1
>> _chem_link.mod_id_1
>> _chem_link.group_comp_1
>> _chem_link.comp_id_2
>> _chem_link.mod_id_2
>> _chem_link.group_comp_2
>> _chem_link.name
>> HEM-CYS  HEM      .        .        CYS      .        .
>>  bond_CYS-SG_=_HEM-FE
>> NO -HEM  HEM      .        .        NO       .        .
>>  bond_HEM-FE_=_NO-N
>> #
>> data_link_HEM-CYS
>> #
>> loop_
>> _chem_link_bond.link_id
>> _chem_link_bond.atom_1_comp_id
>> _chem_link_bond.atom_id_1
>> _chem_link_bond.atom_2_comp_id
>> _chem_link_bond.atom_id_2
>> _chem_link_bond.type
>> _chem_link_bond.value_dist
>> _chem_link_bond.value_dist_esd
>> HEM-CYS  1 FE        2  SG        .         2.300000    0.020
>> #
>> loop_
>> _chem_link_angle.link_id
>> _chem_link_angle.atom_1_comp_id
>> _chem_link_angle.atom_id_1
>> _chem_link_angle.atom_2_comp_id
>> _chem_link_angle.atom_id_2
>> _chem_link_angle.atom_3_comp_id
>> _chem_link_angle.atom_id_3
>> _chem_link_angle.value_angle
>> _chem_link_angle.value_angle_esd
>> HEM-CYS  2  SG       1 FE       1  NC       109.471221    3.000
>> HEM-CYS  1 FE        2  SG      2  CB       109.471221    3.000
>> #
>> data_link_NO -HEM
>> #
>> loop_
>> _chem_link_bond.link_id
>> _chem_link_bond.atom_1_comp_id
>> _chem_link_bond.atom_id_1
>> _chem_link_bond.atom_2_comp_id
>> _chem_link_bond.atom_id_2
>> _chem_link_bond.type
>> _chem_link_bond.value_dist
>> _chem_link_bond.value_dist_esd
>> NO -HEM  1  N        2 FE         .         1.900000    0.020
>> #
>> loop_
>> _chem_link_angle.link_id
>> _chem_link_angle.atom_1_comp_id
>> _chem_link_angle.atom_id_1
>> _chem_link_angle.atom_2_comp_id
>> _chem_link_angle.atom_id_2
>> _chem_link_angle.atom_3_comp_id
>> _chem_link_angle.atom_id_3
>> _chem_link_angle.value_angle
>> _chem_link_angle.value_angle_esd
>> NO -HEM  2 FE        1  N       1  O        140           3.000
>> NO -HEM  1  N        2 FE       2  NC       103           3.000
>>
>>
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-- 
Nigel W. Moriarty
Building 64R0246B, Physical Biosciences Division
Lawrence Berkeley National Laboratory
Berkeley, CA 94720-8235
Phone : 510-486-5709     Email : NWMoriarty at LBL.gov
Fax   : 510-486-5909       Web  : CCI.LBL.gov


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