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- PDB-1qnm: HUMAN MANGANESE SUPEROXIDE DISMUTASE MUTANT Q143N -

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Basic information

Entry
Database: PDB / ID: 1qnm
TitleHUMAN MANGANESE SUPEROXIDE DISMUTASE MUTANT Q143N
ComponentsMANGANESE SUPEROXIDE DISMUTASE
KeywordsOXIDOREDUCTASE / MANGANESE SUPEROXIDE DISMUTASE / HMNSOD
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 / positive regulation of hydrogen peroxide biosynthetic process / response to magnetism / detection of oxygen / response to silicon dioxide / intracellular oxygen homeostasis / response to L-ascorbic acid ...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 / positive regulation of hydrogen peroxide biosynthetic process / response to magnetism / detection of oxygen / response to silicon dioxide / intracellular oxygen homeostasis / response to L-ascorbic acid / response to selenium ion / response to superoxide / response to manganese ion / hydrogen peroxide biosynthetic process / superoxide anion generation / intrinsic apoptotic signaling pathway in response to oxidative stress / response to zinc ion / positive regulation of vascular associated smooth muscle cell apoptotic process / superoxide metabolic process / Deregulated CDK5 triggers multiple neurodegenerative pathways in Alzheimer's disease models / superoxide dismutase / response to isolation stress / negative regulation of fat cell differentiation / Detoxification of Reactive Oxygen Species / superoxide dismutase activity / response to immobilization stress / hemopoiesis / cellular response to ethanol / negative regulation of vascular associated smooth muscle cell proliferation / mitochondrial nucleoid / response to electrical stimulus / response to hyperoxia / Mitochondrial unfolded protein response (UPRmt) / response to cadmium ion / neuron development / FOXO-mediated transcription of oxidative stress, metabolic and neuronal genes / response to axon injury / negative regulation of fibroblast proliferation / negative regulation of oxidative stress-induced intrinsic apoptotic signaling pathway / glutathione metabolic process / Gene and protein expression by JAK-STAT signaling after Interleukin-12 stimulation / removal of superoxide radicals / release of cytochrome c from mitochondria / response to gamma radiation / response to activity / post-embryonic development / regulation of mitochondrial membrane potential / respiratory electron transport chain / locomotory behavior / response to hydrogen peroxide / liver development / Transcriptional activation of mitochondrial biogenesis / oxygen binding / multicellular organismal-level iron ion homeostasis / regulation of blood pressure / intrinsic apoptotic signaling pathway in response to DNA damage / positive regulation of nitric oxide biosynthetic process / manganese ion binding / heart development / cellular response to oxidative stress / response to lipopolysaccharide / protein homotetramerization / negative regulation of neuron apoptotic process / response to hypoxia / positive regulation of cell migration / mitochondrial matrix / 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 ...: / 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], mitochondrial
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / ISOMORPHOUS REFINEMENT / Resolution: 2.3 Å
AuthorsGuan, Y. / Tainer, J.A.
CitationJournal: Biochemistry / Year: 1998
Title: Probing the active site of human manganese superoxide dismutase: the role of glutamine 143.
Authors: Hsieh, Y. / Guan, Y. / Tu, C. / Bratt, P.J. / Angerhofer, A. / Lepock, J.R. / Hickey, M.J. / Tainer, J.A. / Nick, H.S. / Silverman, D.N.
History
DepositionJul 3, 1997Processing site: BNL
Revision 1.0Jan 7, 1998Provider: repository / Type: Initial release
Revision 1.1Mar 24, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Apr 4, 2018Group: Data collection / Other / Category: diffrn_source / pdbx_database_status
Item: _diffrn_source.type / _pdbx_database_status.process_site
Revision 1.4Nov 3, 2021Group: Database references / Derived calculations
Category: database_2 / struct_conn ...database_2 / 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 / _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 / _struct_ref_seq_dif.details / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id
Revision 1.5Aug 9, 2023Group: Refinement description / Category: pdbx_initial_refinement_model
Revision 1.6May 22, 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
hetero molecules


Theoretical massNumber of molelcules
Total (without water)44,5484
Polymers44,4382
Non-polymers1102
Water4,053225
1
A: MANGANESE SUPEROXIDE DISMUTASE
B: MANGANESE SUPEROXIDE DISMUTASE
hetero molecules

A: MANGANESE SUPEROXIDE DISMUTASE
B: MANGANESE SUPEROXIDE DISMUTASE
hetero molecules


Theoretical massNumber of molelcules
Total (without water)89,0968
Polymers88,8764
Non-polymers2204
Water724
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation2_555-x,-y,z1
Unit cell
Length a, b, c (Å)75.500, 78.600, 67.700
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: (0.89, -0.4559, 0.0073), (-0.4559, -0.89, 0.0025), (0.0053, -0.0056, -1)
Vector: -0.547, -0.359, 101.394)

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Components

#1: Protein MANGANESE SUPEROXIDE DISMUTASE


Mass: 22219.084 Da / Num. of mol.: 2 / Mutation: Q143N
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: MUTATED RECOMBINANT HUMAN GENE / Organelle: MITOCHONDRIA / Plasmid: PCMNSOD
Gene (production host): MUTATED RECOMBINANT HUMAN GENE FOR MNSOD
Production host: Escherichia coli (E. coli) / Strain (production host): SOD-- / 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


Mass: 18.015 Da / Num. of mol.: 225 / 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: 2.26 Å3/Da / Density % sol: 45.55 %
Crystal growpH: 4.6 / Details: pH 4.6
Crystal grow
*PLUS
Method: vapor diffusion, hanging drop / Details: or sitting drop method
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-ID
120 mg/mlprotein1drop
240 mMsodium acetate1reservoir
320 %mPEG20001reservoir
4200 mMammonium sulfate1reservoir
50.8 %1,2,3-heptanetriol1reservoir

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Data collection

DiffractionMean temperature: 90 K
Diffraction sourceSource: ROTATING ANODE / Type: MACSCIENCE / Wavelength: 1.5418
DetectorType: SIEMENS / Detector: AREA DETECTOR / Date: May 1, 1997
RadiationMonochromator: NI FILTER / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 2.3→100 Å / Num. obs: 18015 / % possible obs: 96.4 % / Observed criterion σ(I): 2 / Redundancy: 2.5 % / Rsym value: 0.092 / Net I/σ(I): 8.4
Reflection shellResolution: 2.3→2.38 Å / Redundancy: 2 % / Mean I/σ(I) obs: 3 / Rsym value: 0.335 / % possible all: 74.3
Reflection
*PLUS
Lowest resolution: 99 Å / Num. measured all: 55987 / Rmerge(I) obs: 0.092
Reflection shell
*PLUS
Lowest resolution: 2.4 Å / % possible obs: 80 %

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Processing

Software
NameVersionClassification
X-PLOR3.8model building
X-PLOR3.8refinement
DENZOdata reduction
SCALEPACKdata scaling
X-PLOR3.8phasing
RefinementMethod to determine structure: ISOMORPHOUS REFINEMENT
Starting model: PDB ENTRY 1ABM

1abm
PDB Unreleased entry


Resolution: 2.3→100 Å / Data cutoff high absF: 1000000 / Data cutoff low absF: 0.001 / Cross valid method: THROUGHOUT / σ(F): 2
RfactorNum. reflection% reflectionSelection details
Rfree0.287 -10 %RANDOM
Rwork0.199 ---
obs0.199 17442 94.3 %-
Displacement parametersBiso mean: 38.6 Å2
Refine analyzeLuzzati d res low obs: 10 Å
Refinement stepCycle: LAST / Resolution: 2.3→100 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3144 0 2 225 3371
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONx_bond_d0.011
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_deg1.5
X-RAY DIFFRACTIONx_angle_deg_na
X-RAY DIFFRACTIONx_angle_deg_prot
X-RAY DIFFRACTIONx_dihedral_angle_d23.3
X-RAY DIFFRACTIONx_dihedral_angle_d_na
X-RAY DIFFRACTIONx_dihedral_angle_d_prot
X-RAY DIFFRACTIONx_improper_angle_d1.27
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
LS refinement shellResolution: 2.3→2.4 Å / Total num. of bins used: 8
Rfactor% reflection
Rfree0.368 7.2 %
Rwork0.334 -
obs-82.4 %
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1PARHCSDX.PROTOPHCSDX.PRO
X-RAY DIFFRACTION2
Software
*PLUS
Name: X-PLOR / Version: 3.8 / Classification: refinement
Refinement
*PLUS
Rfactor obs: 0.198 / Rfactor Rfree: 0.294
Solvent computation
*PLUS
Displacement parameters
*PLUS
Refine LS restraints
*PLUS
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONx_dihedral_angle_d
X-RAY DIFFRACTIONx_dihedral_angle_deg23.3
X-RAY DIFFRACTIONx_improper_angle_d
X-RAY DIFFRACTIONx_improper_angle_deg1.27
LS refinement shell
*PLUS
Rfactor obs: 0.334

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