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- PDB-1sk0: ARSENATE REDUCTASE R60A MUTANT +0.4M ARSENITE FROM E. COLI -

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Basic information

Entry
Database: PDB / ID: 1sk0
TitleARSENATE REDUCTASE R60A MUTANT +0.4M ARSENITE FROM E. COLI
ComponentsArsenate reductase
KeywordsOXIDOREDUCTASE / ARSC / REDUCTASE / ARSENITE / ARSENATE
Function / homology
Function and homology information


arsenate reductase (glutathione/glutaredoxin) / arsenate reductase (glutaredoxin) activity / response to arsenic-containing substance
Similarity search - Function
Arsenate reductase / Arsenate reductase-like / ArsC family / ArsC family profile. / Glutaredoxin / Glutaredoxin / Thioredoxin-like superfamily / 3-Layer(aba) Sandwich / Alpha Beta
Similarity search - Domain/homology
: / TRIHYDROXYARSENITE(III) / Arsenate reductase
Similarity search - Component
Biological speciesEscherichia coli (E. coli)
MethodX-RAY DIFFRACTION / FOURIER SYNTHESIS / Resolution: 1.8 Å
AuthorsDemel, S. / Edwards, B.F.
CitationJournal: Protein Sci. / Year: 2004
Title: Arginine 60 in the ArsC arsenate reductase of E. coli plasmid R773 determines the chemical nature of the bound As(III) product.
Authors: DeMel, S. / Shi, J. / Martin, P. / Rosen, B.P. / Edwards, B.F.
History
DepositionMar 4, 2004Deposition site: RCSB / Processing site: RCSB
Revision 1.0Mar 15, 2005Provider: repository / Type: Initial release
Revision 1.1Apr 29, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Derived calculations / Version format compliance
Revision 1.3Oct 11, 2017Group: Refinement description / Category: software
Revision 1.4Apr 4, 2018Group: Data collection / Category: diffrn_source / Item: _diffrn_source.type
Revision 1.5Aug 29, 2018Group: Data collection / Derived calculations ...Data collection / Derived calculations / Source and taxonomy / Structure summary
Category: entity / entity_src_gen ...entity / entity_src_gen / entity_src_nat / pdbx_struct_special_symmetry
Item: _entity.src_method
Revision 1.6Jul 24, 2019Group: Data collection / Derived calculations / Refinement description
Category: software / struct_conn
Item: _software.classification / _software.name / _struct_conn.pdbx_leaving_atom_flag
Revision 1.7Apr 3, 2024Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model / 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.ptnr1_symmetry / _pdbx_struct_conn_angle.ptnr2_auth_seq_id / _pdbx_struct_conn_angle.ptnr2_label_asym_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.ptnr3_symmetry / _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.ptnr1_symmetry / _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_conn.ptnr2_symmetry / _struct_ref_seq_dif.details / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id
Revision 1.8Oct 9, 2024Group: Structure summary / Category: pdbx_entry_details / pdbx_modification_feature

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Arsenate reductase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)16,5928
Polymers15,7421
Non-polymers8507
Water5,405300
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPQS
Unit cell
Length a, b, c (Å)86.560, 86.560, 115.990
Angle α, β, γ (deg.)90.00, 90.00, 120.00
Int Tables number178
Space group name H-MP6122
Components on special symmetry positions
IDModelComponents
11A-401-

CS

21A-1250-

HOH

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Components

#1: Protein Arsenate reductase / Arsenical pump modifier


Mass: 15741.874 Da / Num. of mol.: 1 / Mutation: R60A
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Escherichia coli (E. coli) / Production host: Escherichia coli BL21(DE3) (bacteria) / Strain (production host): BL21(DE3)
References: UniProt: P08692, arsenate reductase (glutathione/glutaredoxin)
#2: Chemical ChemComp-SO4 / SULFATE ION


Mass: 96.063 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: SO4
#3: Chemical
ChemComp-CS / CESIUM ION


Mass: 132.905 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: Cs
#4: Chemical ChemComp-TAS / TRIHYDROXYARSENITE(III)


Mass: 125.944 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: AsH3O3
#5: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 300 / Source method: isolated from a natural source / Formula: H2O
Has protein modificationY

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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: 2.91 Å3/Da / Density % sol: 57.7 %
Crystal growTemperature: 278 K / Method: vapor diffusion, hanging drop / pH: 4.8
Details: 50% saturated Cesium Sulfate, 100mM sodium acetate,5mM DTT, pH 4.80, VAPOR DIFFUSION, HANGING DROP, temperature 278K

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Data collection

DiffractionMean temperature: 93 K
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU RU200 / Wavelength: 1.5418
DetectorType: RIGAKU RAXIS IV / Detector: IMAGE PLATE / Date: Nov 9, 2001 / Details: OSMIC MIRRORS
RadiationMonochromator: OSMIC MIRRORS / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 1.7875→20 Å / Num. obs: 24478 / % possible obs: 98.2 % / Observed criterion σ(I): -3 / Redundancy: 17.5 % / Rmerge(I) obs: 0.1416 / Rsym value: 0.1416 / Net I/σ(I): 16.2
Reflection shellResolution: 1.7875→1.847 Å / Redundancy: 21.36 % / Rmerge(I) obs: 0.526 / Mean I/σ(I) obs: 2.936 / Rsym value: 0.526 / % possible all: 89.08

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Processing

Software
NameClassification
SHELXL-97refinement
XTALVIEWrefinement
SHELXmodel building
X-GENdata reduction
X-GENdata scaling
SHELXphasing
RefinementMethod to determine structure: FOURIER SYNTHESIS
Starting model: NATIVE STRUCTURE

Resolution: 1.8→20 Å / Num. parameters: 5828 / Num. restraintsaints: 4570 / Cross valid method: FREE R / σ(F): 0 / Stereochemistry target values: Engh & Huber
RfactorNum. reflection% reflectionSelection details
Rfree0.2385 --RANDOM
Rwork0.1829 ---
all0.1829 23276 --
obs-23276 95.1 %-
Solvent computationSolvent model: MOEWS & KRETSINGER, J.MOL.BIOL.91(1973)201-228
Refine analyzeNum. disordered residues: 3 / Occupancy sum hydrogen: 0 / Occupancy sum non hydrogen: 1419.57
Refinement stepCycle: LAST / Resolution: 1.8→20 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms1082 0 18 300 1400
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONs_bond_d0.008
X-RAY DIFFRACTIONs_angle_d0.024
X-RAY DIFFRACTIONs_similar_dist0
X-RAY DIFFRACTIONs_from_restr_planes0.0285
X-RAY DIFFRACTIONs_zero_chiral_vol0.044
X-RAY DIFFRACTIONs_non_zero_chiral_vol0.049
X-RAY DIFFRACTIONs_anti_bump_dis_restr0.018
X-RAY DIFFRACTIONs_rigid_bond_adp_cmpnt0
X-RAY DIFFRACTIONs_similar_adp_cmpnt0.063
X-RAY DIFFRACTIONs_approx_iso_adps0

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