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- PDB-2bkb: q69e-FeSOD -

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Basic information

Entry
Database: PDB / ID: 2bkb
Titleq69e-FeSOD
ComponentsSUPEROXIDE DISMUTASE [FE]
KeywordsOXIDOREDUCTASE / SUPEROXIDE DISMUTASE / IRON REDOX TUNING / H-BOND NETWORK / MUTANT
Function / homology
Function and homology information


response to superoxide / superoxide metabolic process / superoxide dismutase / superoxide dismutase activity / removal of superoxide radicals / oxidoreductase activity / iron ion binding / membrane / cytosol / cytoplasm
Similarity search - Function
Manganese/iron superoxide dismutase, binding site / Manganese and iron superoxide dismutases signature. / Manganese/iron superoxide dismutase / Manganese/iron superoxide dismutase, N-terminal / Iron/manganese superoxide dismutases, alpha-hairpin domain / Manganese/iron superoxide dismutase, C-terminal / Manganese/iron superoxide dismutase, C-terminal domain superfamily / Iron/manganese superoxide dismutases, C-terminal domain / Manganese/iron superoxide dismutase, N-terminal domain superfamily
Similarity search - Domain/homology
: / Superoxide dismutase [Fe]
Similarity search - Component
Biological speciesESCHERICHIA COLI (E. coli)
MethodX-RAY DIFFRACTION / MOLECULAR REPLACEMENT / Resolution: 1.7 Å
AuthorsYikilmaz, E. / Rodgers, D.W. / Miller, A.-F.
CitationJournal: Biochemistry / Year: 2006
Title: The Crucial Importance of Chemistry in the Structure-Function Link: Manipulating Hydrogen Bonding in Iron-Containing Superoxide Dismutase.
Authors: Yikilmaz, E. / Rodgers, D.W. / Miller, A.-F.
History
DepositionFeb 14, 2005Deposition site: PDBE / Processing site: PDBE
Revision 1.0Jan 3, 2007Provider: 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_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.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.value / _struct_conn.pdbx_dist_value / _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.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

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: SUPEROXIDE DISMUTASE [FE]
B: SUPEROXIDE DISMUTASE [FE]
C: SUPEROXIDE DISMUTASE [FE]
D: SUPEROXIDE DISMUTASE [FE]
hetero molecules


Theoretical massNumber of molelcules
Total (without water)84,8458
Polymers84,6224
Non-polymers2234
Water11,331629
1
A: SUPEROXIDE DISMUTASE [FE]
B: SUPEROXIDE DISMUTASE [FE]
hetero molecules


Theoretical massNumber of molelcules
Total (without water)42,4234
Polymers42,3112
Non-polymers1122
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPQS
2
C: SUPEROXIDE DISMUTASE [FE]
D: SUPEROXIDE DISMUTASE [FE]
hetero molecules


Theoretical massNumber of molelcules
Total (without water)42,4234
Polymers42,3112
Non-polymers1122
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPQS
Unit cell
Length a, b, c (Å)43.500, 107.700, 84.200
Angle α, β, γ (deg.)90.00, 95.02, 90.00
Int Tables number4
Space group name H-MP1211

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Components

#1: Protein
SUPEROXIDE DISMUTASE [FE]


Mass: 21155.471 Da / Num. of mol.: 4 / Mutation: YES
Source method: isolated from a genetically manipulated source
Details: REDUCED STATE / Source: (gene. exp.) ESCHERICHIA COLI (E. coli) / Production host: ESCHERICHIA COLI (E. coli) / References: UniProt: P0AGD3, superoxide dismutase
#2: Chemical
ChemComp-FE2 / FE (II) ION


Mass: 55.845 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: Fe
#3: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 629 / Source method: isolated from a natural source / Formula: H2O
Compound detailsENGINEERED RESIDUE IN CHAIN A, GLN 69 TO GLU ENGINEERED RESIDUE IN CHAIN B, GLN 69 TO GLU ...ENGINEERED RESIDUE IN CHAIN A, GLN 69 TO GLU ENGINEERED RESIDUE IN CHAIN B, GLN 69 TO GLU ENGINEERED RESIDUE IN CHAIN C, GLN 69 TO GLU ENGINEERED RESIDUE IN CHAIN D, GLN 69 TO GLU

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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: 2.11 Å3/Da / Density % sol: 41.36 %

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Data collection

DiffractionMean temperature: 110 K
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU RU200 / Wavelength: 1.5
DetectorType: RIGAKU RAXIS IV / Detector: IMAGE PLATE / Details: GRADED MULTILAYER
RadiationMonochromator: NI FILTER / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5 Å / Relative weight: 1
ReflectionResolution: 1.6→20 Å / Num. obs: 87786 / % possible obs: 86.3 % / Observed criterion σ(I): -4 / Redundancy: 4 % / Biso Wilson estimate: 20.7 Å2 / Rmerge(I) obs: 0.07

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Processing

Software
NameClassification
CNSrefinement
HKLdata reduction
HKLdata scaling
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: WT-FESOD 1ISB.PDB
Resolution: 1.7→19.97 Å / Rfactor Rfree error: 0.002 / Data cutoff high absF: 847928.8 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 0
RfactorNum. reflection% reflectionSelection details
Rfree0.231 7776 10 %RANDOM
Rwork0.207 ---
obs0.207 79134 86.3 %-
Solvent computationSolvent model: FLAT MODEL / Bsol: 38.0928 Å2 / ksol: 0.362302 e/Å3
Displacement parametersBiso mean: 16.7 Å2
Baniso -1Baniso -2Baniso -3
1-1.327 Å20 Å2-2.697 Å2
2---3.918 Å20 Å2
3---2.591 Å2
Refine analyze
FreeObs
Luzzati coordinate error0.22 Å0.19 Å
Luzzati d res low-5 Å
Luzzati sigma a0.1 Å-
Refinement stepCycle: LAST / Resolution: 1.7→19.97 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms6012 0 4 629 6645
Refine LS restraints
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONc_bond_d0.005
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_deg1.2
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_d0.82
X-RAY DIFFRACTIONc_improper_angle_d_na
X-RAY DIFFRACTIONc_improper_angle_d_prot
X-RAY DIFFRACTIONc_mcbond_it11.5
X-RAY DIFFRACTIONc_mcangle_it1.412
X-RAY DIFFRACTIONc_scbond_it1.942
X-RAY DIFFRACTIONc_scangle_it2.632.5
LS refinement shellResolution: 1.7→1.75 Å / Rfactor Rfree error: 0.01 / Total num. of bins used: 6
RfactorNum. reflection% reflection
Rfree0.298 891 9.9 %
Rwork0.253 8140 -
obs--53.6 %
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1PROTEIN_REP.PARAMPROTEIN.TOP
X-RAY DIFFRACTION2ION.PARAMION.TOP
X-RAY DIFFRACTION3WATER_REP.PARAMWATER.TOP

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