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- PDB-2bj7: NIKR IN CLOSED CONFORMATION AND NICKEL BOUND TO HIGH-AFFINITY SITES -

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Basic information

Entry
Database: PDB / ID: 2bj7
TitleNIKR IN CLOSED CONFORMATION AND NICKEL BOUND TO HIGH-AFFINITY SITES
ComponentsNICKEL RESPONSIVE REGULATOR
KeywordsTRANSCRIPTION / REPRESSOR / PYROCOCCUS HORIKOSHII / NIKR / DNA-BINDING / METAL-BINDING / NICKEL / TRANSCRIPTION REGULATION / RIKEN STRUCTURAL GENOMICS/PROTEOMICS INITIATIVE / RSGI / STRUCTURAL GENOMICS
Function / homology
Function and homology information


response to nickel cation / nickel cation binding / DNA-binding transcription factor activity / DNA binding
Similarity search - Function
Transcription factor, NikR, nickel binding C-terminal / Nickel-responsive transcriptional regulator NikR / NikR C terminal nickel binding domain / ACT-like. Chain A, domain 2 / Acetolactate synthase/Transcription factor NikR, C-terminal / Ribbon-helix-helix protein, CopG / Ribbon-helix-helix protein, copG family / Met repressor-like / Arc Repressor Mutant / Arc-type ribbon-helix-helix ...Transcription factor, NikR, nickel binding C-terminal / Nickel-responsive transcriptional regulator NikR / NikR C terminal nickel binding domain / ACT-like. Chain A, domain 2 / Acetolactate synthase/Transcription factor NikR, C-terminal / Ribbon-helix-helix protein, CopG / Ribbon-helix-helix protein, copG family / Met repressor-like / Arc Repressor Mutant / Arc-type ribbon-helix-helix / Ribbon-helix-helix / ACT-like domain / Alpha-Beta Plaits / 2-Layer Sandwich / Orthogonal Bundle / Mainly Alpha / Alpha Beta
Similarity search - Domain/homology
NICKEL (II) ION / Putative nickel-responsive regulator
Similarity search - Component
Biological speciesPYROCOCCUS HORIKOSHII (archaea)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.1 Å
AuthorsTahirov, T.H.
Citation
Journal: J.Mol.Biol. / Year: 2005
Title: Structure of Pyrococcus Horikoshii Nikr: Nickel Sensing and Implications for the Regulation of DNA Recognition
Authors: Chivers, P.T. / Tahirov, T.H.
#1: Journal: Acta Crystallogr.,Sect.F / Year: 2005
Title: Crystallization and Preliminary Crystallographic Analysis of the Nickel-Responsive Regulator Nikr from Pyrococcus Horikoshii
Authors: Kitao, T. / Kuroishi, C. / Tahirov, T.H.
History
DepositionJan 31, 2005Deposition site: PDBE / Processing site: PDBE
Revision 1.0Apr 8, 2005Provider: repository / Type: Initial release
Revision 1.1May 8, 2011Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Dec 13, 2023Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Other / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_database_status / pdbx_initial_refinement_model / pdbx_struct_conn_angle / struct_conn
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_database_status.status_code_sf / _pdbx_struct_conn_angle.ptnr1_auth_asym_id / _pdbx_struct_conn_angle.ptnr1_auth_comp_id / _pdbx_struct_conn_angle.ptnr1_auth_seq_id / _pdbx_struct_conn_angle.ptnr1_label_asym_id / _pdbx_struct_conn_angle.ptnr1_label_atom_id / _pdbx_struct_conn_angle.ptnr1_label_comp_id / _pdbx_struct_conn_angle.ptnr1_label_seq_id / _pdbx_struct_conn_angle.ptnr1_symmetry / _pdbx_struct_conn_angle.ptnr2_auth_asym_id / _pdbx_struct_conn_angle.ptnr2_auth_seq_id / _pdbx_struct_conn_angle.ptnr2_label_asym_id / _pdbx_struct_conn_angle.ptnr3_auth_asym_id / _pdbx_struct_conn_angle.ptnr3_auth_comp_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _pdbx_struct_conn_angle.ptnr3_label_asym_id / _pdbx_struct_conn_angle.ptnr3_label_atom_id / _pdbx_struct_conn_angle.ptnr3_label_comp_id / _pdbx_struct_conn_angle.ptnr3_label_seq_id / _pdbx_struct_conn_angle.ptnr3_symmetry / _pdbx_struct_conn_angle.value / _struct_conn.pdbx_dist_value / _struct_conn.ptnr1_auth_asym_id / _struct_conn.ptnr1_auth_comp_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_asym_id / _struct_conn.ptnr1_label_atom_id / _struct_conn.ptnr1_label_comp_id / _struct_conn.ptnr1_label_seq_id / _struct_conn.ptnr1_symmetry / _struct_conn.ptnr2_auth_asym_id / _struct_conn.ptnr2_auth_comp_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_asym_id / _struct_conn.ptnr2_label_atom_id / _struct_conn.ptnr2_label_comp_id / _struct_conn.ptnr2_label_seq_id / _struct_conn.ptnr2_symmetry

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: NICKEL RESPONSIVE REGULATOR
B: NICKEL RESPONSIVE REGULATOR
hetero molecules


Theoretical massNumber of molelcules
Total (without water)32,44311
Polymers31,6612
Non-polymers7839
Water2,072115
1
A: NICKEL RESPONSIVE REGULATOR
B: NICKEL RESPONSIVE REGULATOR
hetero molecules

A: NICKEL RESPONSIVE REGULATOR
B: NICKEL RESPONSIVE REGULATOR
hetero molecules


Theoretical massNumber of molelcules
Total (without water)64,88722
Polymers63,3214
Non-polymers1,56618
Water724
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation6_554-x,-x+y,-z-1/31
MethodPQS
Unit cell
Length a, b, c (Å)109.952, 109.952, 79.003
Angle α, β, γ (deg.)90.00, 90.00, 120.00
Int Tables number154
Space group name H-MP3221
Components on special symmetry positions
IDModelComponents
11A-2011-

HOH

21B-2015-

HOH

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Components

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Protein , 1 types, 2 molecules AB

#1: Protein NICKEL RESPONSIVE REGULATOR


Mass: 15830.320 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) PYROCOCCUS HORIKOSHII (archaea) / Strain: OT3 / Plasmid: PET11A / Production host: ESCHERICHIA COLI (E. coli) / Strain (production host): BL21(DE3) / References: UniProt: O58316

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Non-polymers , 5 types, 124 molecules

#2: Chemical
ChemComp-NI / NICKEL (II) ION / Nickel


Mass: 58.693 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: Ni
#3: Chemical ChemComp-EDO / 1,2-ETHANEDIOL / ETHYLENE GLYCOL / Ethylene glycol


Mass: 62.068 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C2H6O2
#4: Chemical ChemComp-PG4 / TETRAETHYLENE GLYCOL / Polyethylene glycol


Mass: 194.226 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C8H18O5 / Comment: precipitant*YM
#5: Chemical ChemComp-CL / CHLORIDE ION / Chloride


Mass: 35.453 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Cl
#6: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 115 / Source method: isolated from a natural source / Formula: H2O

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION / Number of used crystals: 1

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Sample preparation

CrystalDensity Matthews: 4.35 Å3/Da / Density % sol: 71.75 %
Crystal growpH: 7.5 / Details: pH 7.50

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: SPring-8 / Beamline: BL26B1 / Wavelength: 1
DetectorType: RIGAKU RAXIS-V / Detector: IMAGE PLATE / Date: Apr 13, 2004
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1 Å / Relative weight: 1
ReflectionResolution: 2.1→30 Å / Num. obs: 32158 / % possible obs: 99.3 % / Observed criterion σ(I): -1 / Redundancy: 8.3 % / Biso Wilson estimate: 21.7 Å2 / Rmerge(I) obs: 0.06 / Net I/σ(I): 24.8
Reflection shellResolution: 2.1→2.18 Å / Redundancy: 5.9 % / Rmerge(I) obs: 0.28 / Mean I/σ(I) obs: 5.5 / % possible all: 99.2

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Processing

Software
NameVersionClassification
HKL-2000data reduction
HKL-2000data scaling
CNSphasing
DMphasing
CNS1.1refinement
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ENTRY 2BJ1

2bj1


Resolution: 2.1→29.45 Å / Rfactor Rfree error: 0.004 / Data cutoff high absF: 1316363.53 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 0
RfactorNum. reflection% reflectionSelection details
Rfree0.215 3068 5 %RANDOM
Rwork0.196 ---
obs0.196 61372 98.3 %-
Solvent computationSolvent model: FLAT MODEL / Bsol: 53.9836 Å2 / ksol: 0.341008 e/Å3
Displacement parametersBiso mean: 49.6 Å2
Baniso -1Baniso -2Baniso -3
1-2.94 Å23.6 Å20 Å2
2--2.94 Å20 Å2
3----5.88 Å2
Refine analyze
FreeObs
Luzzati coordinate error0.27 Å0.25 Å
Luzzati d res low-5 Å
Luzzati sigma a0.33 Å0.29 Å
Refinement stepCycle: LAST / Resolution: 2.1→29.45 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2205 0 39 115 2359
Refine LS restraints
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONc_bond_d0.006
X-RAY DIFFRACTIONc_bond_d_na
X-RAY DIFFRACTIONc_bond_d_prot
X-RAY DIFFRACTIONc_angle_d
X-RAY DIFFRACTIONc_angle_d_na
X-RAY DIFFRACTIONc_angle_d_prot
X-RAY DIFFRACTIONc_angle_deg1.1
X-RAY DIFFRACTIONc_angle_deg_na
X-RAY DIFFRACTIONc_angle_deg_prot
X-RAY DIFFRACTIONc_dihedral_angle_d21.2
X-RAY DIFFRACTIONc_dihedral_angle_d_na
X-RAY DIFFRACTIONc_dihedral_angle_d_prot
X-RAY DIFFRACTIONc_improper_angle_d0.64
X-RAY DIFFRACTIONc_improper_angle_d_na
X-RAY DIFFRACTIONc_improper_angle_d_prot
X-RAY DIFFRACTIONc_mcbond_it3.931.5
X-RAY DIFFRACTIONc_mcangle_it4.962
X-RAY DIFFRACTIONc_scbond_it6.622
X-RAY DIFFRACTIONc_scangle_it9.132.5
LS refinement shellResolution: 2.1→2.23 Å / Rfactor Rfree error: 0.015 / Total num. of bins used: 6
RfactorNum. reflection% reflection
Rfree0.33 464 4.6 %
Rwork0.303 9568 -
obs--96.1 %
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1PROTEIN_REP.PARAMPROTEIN.TOP
X-RAY DIFFRACTION2ION.PARAMION.TOP
X-RAY DIFFRACTION3WATER.PARAMWATER.TOP
X-RAY DIFFRACTION4EGL.PAREGL.TOP
X-RAY DIFFRACTION5PG4.PARPG4.TOP

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