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- PDB-1i0h: CRYSTAL STRUCTURE OF THE E. COLI MANGANESE SUPEROXIDE DISMUTASE M... -

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Basic information

Entry
Database: PDB / ID: 1i0h
TitleCRYSTAL STRUCTURE OF THE E. COLI MANGANESE SUPEROXIDE DISMUTASE MUTANT Y174F AT 1.35 ANGSTROMS RESOLUTION.
ComponentsMANGANESE SUPEROXIDE DISMUTASE Y174F MUTANT
KeywordsOXIDOREDUCTASE / manganese superoxide dismutase / Y174F mutant / hydrogen bond / reactivity
Function / homology
Function and homology information


cellular response to selenium ion / response to acidic pH / superoxide metabolic process / superoxide dismutase / superoxide dismutase activity / antioxidant activity / removal of superoxide radicals / manganese ion binding / response to heat / response to oxidative stress ...cellular response to selenium ion / response to acidic pH / superoxide metabolic process / superoxide dismutase / superoxide dismutase activity / antioxidant activity / removal of superoxide radicals / manganese ion binding / response to heat / response to oxidative stress / protein homodimerization activity / DNA binding / metal ion binding / cytoplasm / cytosol
Similarity search - Function
Iron/manganese superoxide dismutase, C-terminal domain / Fe,Mn superoxide dismutase (SOD) domain / minor pseudopilin epsh fold / 3-Layer(bab) Sandwich / 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 ...Iron/manganese superoxide dismutase, C-terminal domain / Fe,Mn superoxide dismutase (SOD) domain / minor pseudopilin epsh fold / 3-Layer(bab) Sandwich / 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 / Helix Hairpins / Orthogonal Bundle / Mainly Alpha / Alpha Beta
Similarity search - Domain/homology
: / Superoxide dismutase [Mn]
Similarity search - Component
Biological speciesEscherichia coli (E. coli)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.35 Å
AuthorsEdwards, R.A. / Whittaker, M.M. / Whittaker, J.W. / Baker, E.N. / Jameson, G.B.
Citation
Journal: Biochemistry / Year: 2001
Title: Removing a hydrogen bond in the dimer interface of Escherichia coli manganese superoxide dismutase alters structure and reactivity.
Authors: Edwards, R.A. / Whittaker, M.M. / Whittaker, J.W. / Baker, E.N. / Jameson, G.B.
#1: Journal: Biochemistry / Year: 2001
Title: Outer sphere mutations perturb metal reactivity in manganese superoxide dismutase
Authors: Edwards, R.A. / Whittaker, M.M. / Whittaker, J.W. / Baker, E.N. / Jameson, G.B.
History
DepositionJan 29, 2001Deposition site: RCSB / Processing site: RCSB
Revision 1.0Feb 28, 2001Provider: repository / Type: Initial release
Revision 1.1Apr 27, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Oct 27, 2021Group: Data collection / Database references / Derived calculations
Category: database_2 / diffrn_source ...database_2 / diffrn_source / pdbx_struct_conn_angle / struct_conn / struct_ref_seq_dif / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _diffrn_source.pdbx_synchrotron_site / _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_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.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_ref_seq_dif.details / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id
Revision 1.4Feb 7, 2024Group: Data collection / Category: chem_comp_atom / chem_comp_bond

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: MANGANESE SUPEROXIDE DISMUTASE Y174F MUTANT
B: MANGANESE SUPEROXIDE DISMUTASE Y174F MUTANT
hetero molecules


Theoretical massNumber of molelcules
Total (without water)46,0724
Polymers45,9622
Non-polymers1102
Water9,008500
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area1800 Å2
ΔGint-12 kcal/mol
Surface area17350 Å2
MethodPISA
Unit cell
Length a, b, c (Å)46.893, 46.017, 95.993
Angle α, β, γ (deg.)90.00, 98.40, 90.00
Int Tables number4
Space group name H-MP1211

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Components

#1: Protein MANGANESE SUPEROXIDE DISMUTASE Y174F MUTANT


Mass: 22980.877 Da / Num. of mol.: 2 / Mutation: Y174F
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Escherichia coli (E. coli) / Plasmid: PDT1-5 (CONTAINING SODA) / Production host: Escherichia coli (E. coli) / References: UniProt: P00448, superoxide dismutase
#2: Chemical ChemComp-MN / MANGANESE (II) ION


Mass: 54.938 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Mn
#3: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 500 / 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: 2.23 Å3/Da / Density % sol: 40 %
Crystal growTemperature: 298 K / Method: vapor diffusion, sitting drop / pH: 8.5
Details: 16-20% PEG 6000, 0.1M bicine ph 8.5, VAPOR DIFFUSION, SITTING DROP, temperature 298K
Crystal grow
*PLUS
Details: drop consists of 2 micro litter of protein solution in 0.1 M bicine plus 2 micro litter of reservoir solution
PH range low: 8.3 / PH range high: 8
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-ID
118-20 mg/mlprotein1drop
20.1 MBicine1drop
316-20 %PEG60001reservoir
40.1 Mbicine1reservoir

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Data collection

DiffractionMean temperature: 110 K
Diffraction sourceSource: SYNCHROTRON / Site: EMBL/DESY, HAMBURG / Beamline: X11 / Wavelength: 0.9058 Å
DetectorType: MARRESEARCH / Detector: AREA DETECTOR / Date: Nov 1, 1998
RadiationMonochromator: single-crystal germanium triangular monochromator
Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.9058 Å / Relative weight: 1
ReflectionResolution: 1.35→50 Å / Num. all: 89109 / Num. obs: 89109 / % possible obs: 100 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Redundancy: 4.2 % / Biso Wilson estimate: 6.5 Å2 / Rmerge(I) obs: 0.027 / Net I/σ(I): 52.5
Reflection shellResolution: 1.35→1.37 Å / Redundancy: 4.2 % / Rmerge(I) obs: 0.071 / Mean I/σ(I) obs: 18.3 / % possible all: 99.9
Reflection
*PLUS
Num. measured all: 561459
Reflection shell
*PLUS
% possible obs: 99.9 %

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Processing

Software
NameClassification
AMoREphasing
SHELXL-97refinement
DENZOdata reduction
SCALEPACKdata scaling
RefinementMethod to determine structure: MOLECULAR REPLACEMENT / Resolution: 1.35→50 Å / Num. parameters: 17529 / Num. restraintsaints: 16393 / σ(F): 4 / Stereochemistry target values: Engh & Huber
RfactorNum. reflectionSelection details
Rfree0.196 4444 RANDOM
Rwork0.17 --
all0.17 89092 -
obs0.169 87479 -
Solvent computationSolvent model: Moews & Kretsinger / Bsol: 2.19461 Å2 / ksol: 0.76955 e/Å3
Refine analyzeNum. disordered residues: 0 / Occupancy sum hydrogen: 0 / Occupancy sum non hydrogen: 3667
Refinement stepCycle: LAST / Resolution: 1.35→50 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3254 0 4 498 3756
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONs_bond_d0.004
X-RAY DIFFRACTIONs_angle_d0.015
X-RAY DIFFRACTIONs_from_restr_planes0.391
X-RAY DIFFRACTIONs_zero_chiral_vol0.066
X-RAY DIFFRACTIONs_non_zero_chiral_vol0.066
X-RAY DIFFRACTIONs_anti_bump_dis_restr0.044
X-RAY DIFFRACTIONs_similar_adp_cmpnt0.024
X-RAY DIFFRACTIONs_approx_iso_adps0.042

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