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- PDB-1n0j: The Structure of Human Mitochondrial MN3+ Superoxide Dismutase Re... -

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Basic information

Entry
Database: PDB / ID: 1n0j
TitleThe Structure of Human Mitochondrial MN3+ Superoxide Dismutase Reveals a Novel Tetrameric Interface of Two 4-Helix Bundles
ComponentsSuperoxide dismutase [Mn]
KeywordsOXIDOREDUCTASE / four-helix bundle / metalloenzyme / manganese
Function / homology
Function and homology information


acetylcholine-mediated vasodilation involved in regulation of systemic arterial blood pressure / erythrophore differentiation / positive regulation of vascular associated smooth muscle cell differentiation involved in phenotypic switching / negative regulation of membrane hyperpolarization / detection of oxygen / positive regulation of hydrogen peroxide biosynthetic process / response to magnetism / response to silicon dioxide / response to L-ascorbic acid / response to isolation stress ...acetylcholine-mediated vasodilation involved in regulation of systemic arterial blood pressure / erythrophore differentiation / positive regulation of vascular associated smooth muscle cell differentiation involved in phenotypic switching / negative regulation of membrane hyperpolarization / detection of oxygen / positive regulation of hydrogen peroxide biosynthetic process / response to magnetism / response to silicon dioxide / response to L-ascorbic acid / response to isolation stress / intracellular oxygen homeostasis / response to selenium ion / response to superoxide / superoxide anion generation / cellular response to ethanol / hydrogen peroxide biosynthetic process / response to manganese ion / negative regulation of fat cell differentiation / positive regulation of vascular associated smooth muscle cell apoptotic process / intrinsic apoptotic signaling pathway in response to oxidative stress / Deregulated CDK5 triggers multiple neurodegenerative pathways in Alzheimer's disease models / response to zinc ion / superoxide metabolic process / superoxide dismutase / Detoxification of Reactive Oxygen Species / mitochondrial nucleoid / superoxide dismutase activity / negative regulation of vascular associated smooth muscle cell proliferation / hemopoiesis / response to immobilization stress / neuron development / response to axon injury / response to hyperoxia / FOXO-mediated transcription of oxidative stress, metabolic and neuronal genes / response to cadmium ion / glutathione metabolic process / response to electrical stimulus / negative regulation of oxidative stress-induced intrinsic apoptotic signaling pathway / negative regulation of fibroblast proliferation / respiratory electron transport chain / Gene and protein expression by JAK-STAT signaling after Interleukin-12 stimulation / removal of superoxide radicals / post-embryonic development / release of cytochrome c from mitochondria / locomotory behavior / regulation of mitochondrial membrane potential / liver development / response to activity / response to gamma radiation / response to hydrogen peroxide / Transcriptional activation of mitochondrial biogenesis / oxygen binding / regulation of blood pressure / multicellular organismal-level iron ion homeostasis / positive regulation of nitric oxide biosynthetic process / intrinsic apoptotic signaling pathway in response to DNA damage / cellular response to oxidative stress / manganese ion binding / heart development / protein homotetramerization / negative regulation of neuron apoptotic process / response to lipopolysaccharide / response to hypoxia / mitochondrial matrix / positive regulation of cell migration / response to xenobiotic stimulus / negative regulation of cell population proliferation / regulation of transcription by RNA polymerase II / enzyme binding / mitochondrion / DNA binding / extracellular exosome / identical protein binding
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], mitochondrial
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / MOLECULAR REPLACEMENT / Resolution: 2.2 Å
AuthorsBorgstahl, G.E.O. / Parge, H.E. / Tainer, J.A.
CitationJournal: Cell(Cambridge,Mass.) / Year: 1992
Title: The Structure of Human Mitochondrial Mn3+ Superoxide Dismutase Reveals a Novel Tetrameric Interface of Two 4-Helix Bundles
Authors: Borgstahl, G.E. / Parge, H.E. / Hickey, M.J. / Beyer Jr., W.F. / Hallewell, R.A. / Tainer, J.A.
History
DepositionOct 14, 2002Deposition site: RCSB / Processing site: RCSB
SupersessionNov 6, 2002ID: 1ABM
Revision 1.0Nov 6, 2002Provider: repository / Type: Initial release
Revision 1.1Oct 16, 2007Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Derived calculations / Version format compliance
Revision 1.3Oct 11, 2017Group: Derived calculations / Refinement description / Category: software / struct_conf / struct_conf_type / Item: _software.name
Revision 1.4Feb 14, 2024Group: Data collection / Database references / Derived calculations
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / 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 / _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

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Superoxide dismutase [Mn]
B: Superoxide dismutase [Mn]
hetero molecules


Theoretical massNumber of molelcules
Total (without water)44,8384
Polymers44,7292
Non-polymers1102
Water3,045169
1
A: Superoxide dismutase [Mn]
B: Superoxide dismutase [Mn]
hetero molecules

A: Superoxide dismutase [Mn]
B: Superoxide dismutase [Mn]
hetero molecules


Theoretical massNumber of molelcules
Total (without water)89,6778
Polymers89,4574
Non-polymers2204
Water724
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation2_555-x,-y,z1
Buried area8150 Å2
ΔGint-43 kcal/mol
Surface area31650 Å2
MethodPISA, PQS
Unit cell
Length a, b, c (Å)76.130, 79.900, 68.050
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number18
Space group name H-MP21212
Noncrystallographic symmetry (NCS)NCS oper: (Code: given
Matrix: (0.8861, -0.4635, 0.0067), (-0.4635, -0.8861, 0.0022), (0.0049, -0.0051, -1)
Vector: -0.321, -0.26, 101.433)

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Components

#1: Protein Superoxide dismutase [Mn]


Mass: 22364.307 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Escherichia coli (E. coli) / Strain (production host): SODASODB / References: UniProt: P04179, 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 / Water


Mass: 18.015 Da / Num. of mol.: 169 / 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: 2.31 Å3/Da / Density % sol: 46.81 %
Crystal growTemperature: 293 K / Method: vapor diffusion, hanging drop / pH: 7.5
Details: peg 600, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Crystal
*PLUS
Density % sol: 47 %
Crystal grow
*PLUS
pH: 7.8 / Method: vapor diffusion
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-IDDetails
110 mg/mlprotein1drop
250 mMphosphate1droppH7.8
324-30 %PEG4001reservoir

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Data collection

DiffractionMean temperature: 298 K
Diffraction sourceSource: ROTATING ANODE / Wavelength: 1.5418 / Wavelength: 1.5418 Å
DetectorType: SIEMENS / Detector: AREA DETECTOR
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 2.2→20 Å / Num. obs: 19738 / % possible obs: 92 % / Observed criterion σ(I): 1 / Redundancy: 6 % / Rmerge(I) obs: 0.09
Reflection shellResolution: 2.2→2.3 Å / % possible all: 52
Reflection
*PLUS
Lowest resolution: 20 Å / % possible obs: 92 % / Num. measured all: 117362 / Rmerge(I) obs: 0.09
Reflection shell
*PLUS
% possible obs: 52 %

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Processing

Software
NameVersionClassification
X-PLOR20refinement
X-GENdata reduction
RefinementMethod to determine structure: MOLECULAR REPLACEMENT / Resolution: 2.2→10 Å / σ(F): 3 /
RfactorNum. reflection
Rwork0.171 -
obs0.171 19738
Refinement stepCycle: LAST / Resolution: 2.2→10 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3146 0 2 169 3317
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONx_bond_d0.018
X-RAY DIFFRACTIONx_bond_d_na
X-RAY DIFFRACTIONx_bond_d_prot
X-RAY DIFFRACTIONx_angle_d
X-RAY DIFFRACTIONx_angle_d_na
X-RAY DIFFRACTIONx_angle_d_prot
X-RAY DIFFRACTIONx_angle_deg3.3
X-RAY DIFFRACTIONx_angle_deg_na
X-RAY DIFFRACTIONx_angle_deg_prot
X-RAY DIFFRACTIONx_dihedral_angle_d
X-RAY DIFFRACTIONx_dihedral_angle_d_na
X-RAY DIFFRACTIONx_dihedral_angle_d_prot
X-RAY DIFFRACTIONx_improper_angle_d
X-RAY DIFFRACTIONx_improper_angle_d_na
X-RAY DIFFRACTIONx_improper_angle_d_prot
X-RAY DIFFRACTIONx_mcbond_it
X-RAY DIFFRACTIONx_mcangle_it
X-RAY DIFFRACTIONx_scbond_it
X-RAY DIFFRACTIONx_scangle_it
Refinement
*PLUS
Rfactor obs: 0.171 / Rfactor Rwork: 0.171
Solvent computation
*PLUS
Displacement parameters
*PLUS

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