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- PDB-1i08: CRYSTAL STRUCTURE ANALYSIS OF THE H30A MUTANT OF MANGANESE SUPERO... -

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Basic information

Entry
Database: PDB / ID: 1i08
TitleCRYSTAL STRUCTURE ANALYSIS OF THE H30A MUTANT OF MANGANESE SUPEROXIDE DISMUTASE FROM E. COLI
ComponentsMANGANESE SUPEROXIDE DISMUTASE
KeywordsOXIDOREDUCTASE / manganese superoxide dismutase / mutant / h30a / 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 / Manganese/iron superoxide dismutase, N-terminal domain superfamily / Iron/manganese superoxide dismutases, C-terminal domain / 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 / MOLECULAR REPLACEMENT / Resolution: 2.2 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 1.3Apr 4, 2018Group: Advisory / Data collection / Category: diffrn_source / pdbx_unobs_or_zero_occ_atoms / Item: _diffrn_source.type
Revision 1.4Oct 27, 2021Group: Advisory / Database references / Derived calculations
Category: database_2 / pdbx_struct_conn_angle ...database_2 / pdbx_struct_conn_angle / pdbx_unobs_or_zero_occ_atoms / 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 / _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 1.5Feb 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
B: MANGANESE SUPEROXIDE DISMUTASE
C: MANGANESE SUPEROXIDE DISMUTASE
D: MANGANESE SUPEROXIDE DISMUTASE
hetero molecules


Theoretical massNumber of molelcules
Total (without water)91,9398
Polymers91,7194
Non-polymers2204
Water4,666259
1
A: MANGANESE SUPEROXIDE DISMUTASE
B: MANGANESE SUPEROXIDE DISMUTASE
hetero molecules


Theoretical massNumber of molelcules
Total (without water)45,9694
Polymers45,8602
Non-polymers1102
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area1720 Å2
ΔGint-12 kcal/mol
Surface area17640 Å2
MethodPISA
2
C: MANGANESE SUPEROXIDE DISMUTASE
D: MANGANESE SUPEROXIDE DISMUTASE
hetero molecules


Theoretical massNumber of molelcules
Total (without water)45,9694
Polymers45,8602
Non-polymers1102
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area1760 Å2
ΔGint-12 kcal/mol
Surface area17650 Å2
MethodPISA
Unit cell
Length a, b, c (Å)100.681, 109.110, 181.072
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number20
Space group name H-MC2221
Components on special symmetry positions
IDModelComponents
11A-211-

HOH

21D-6111-

HOH

DetailsThe biological assembly is a dimer generated around a non-crystallographic two-fold axis.

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Components

#1: Protein
MANGANESE SUPEROXIDE DISMUTASE


Mass: 22929.811 Da / Num. of mol.: 4 / Mutation: H30A
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.: 4 / Source method: obtained synthetically / Formula: Mn
#3: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 259 / 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: 2.71 Å3/Da / Density % sol: 55 %
Crystal growTemperature: 298 K / Method: vapor diffusion, sitting drop / pH: 8
Details: 16-20% PEG 6000, 0.1 M bicine, pH 8.0, 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: 293 K
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU RU200 / Wavelength: 1.5418 Å
DetectorType: RIGAKU RAXIS IIC / Detector: IMAGE PLATE / Date: Jun 2, 1998
RadiationMonochromator: GRAPHITE / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 2.2→40 Å / Num. all: 48514 / Num. obs: 48514 / % possible obs: 95.3 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Redundancy: 5.3 % / Biso Wilson estimate: 21 Å2 / Rmerge(I) obs: 0.059 / Net I/σ(I): 22.4
Reflection shellResolution: 2.2→2.25 Å / Redundancy: 1.8 % / Rmerge(I) obs: 0.26 / Mean I/σ(I) obs: 4 / % possible all: 73
Reflection
*PLUS
Num. measured all: 458707
Reflection shell
*PLUS
% possible obs: 73 %

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Processing

Software
NameVersionClassification
AMoREphasing
CNS0.5refinement
DENZOdata reduction
SCALEPACKdata scaling
RefinementMethod to determine structure: MOLECULAR REPLACEMENT / Resolution: 2.2→40 Å / σ(F): 0 / σ(I): 0 / Stereochemistry target values: ENGH & HUBER
RfactorNum. reflection% reflectionSelection details
Rfree0.211 2456 5.1 %BASED ON R-FREE REFLECTIONS SELECTED FOR NATIVE STRUCTURE PDB CODE 1VEW
Rwork0.184 ---
obs0.184 48504 --
all-48504 --
Displacement parametersBiso mean: 24.7 Å2
Baniso -1Baniso -2Baniso -3
1--1.017 Å20 Å20 Å2
2---2.533 Å20 Å2
3---3.55 Å2
Refinement stepCycle: LAST / Resolution: 2.2→40 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms6492 0 8 255 6755
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONc_bond_d0.005
X-RAY DIFFRACTIONo_bond_d_na
X-RAY DIFFRACTIONo_bond_d_prot
X-RAY DIFFRACTIONo_angle_d
X-RAY DIFFRACTIONo_angle_d_na
X-RAY DIFFRACTIONo_angle_d_prot
X-RAY DIFFRACTIONo_angle_deg1.16
X-RAY DIFFRACTIONo_angle_deg_na
X-RAY DIFFRACTIONo_angle_deg_prot
X-RAY DIFFRACTIONo_dihedral_angle_d
X-RAY DIFFRACTIONo_dihedral_angle_d_na
X-RAY DIFFRACTIONo_dihedral_angle_d_prot
X-RAY DIFFRACTIONo_improper_angle_d
X-RAY DIFFRACTIONo_improper_angle_d_na
X-RAY DIFFRACTIONo_improper_angle_d_prot
X-RAY DIFFRACTIONo_mcbond_it
X-RAY DIFFRACTIONo_mcangle_it
X-RAY DIFFRACTIONo_scbond_it
X-RAY DIFFRACTIONo_scangle_it
Software
*PLUS
Name: CNS / Version: 0.5 / Classification: refinement
Refine LS restraints
*PLUS
Refine-IDType
X-RAY DIFFRACTIONc_angle_d
X-RAY DIFFRACTIONc_angle_deg
X-RAY DIFFRACTIONc_dihedral_angle_d
X-RAY DIFFRACTIONc_improper_angle_d
X-RAY DIFFRACTIONc_mcbond_it
X-RAY DIFFRACTIONc_scbond_it
X-RAY DIFFRACTIONc_mcangle_it
X-RAY DIFFRACTIONc_scangle_it

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