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- PDB-3ur5: Crystal Structure of PTE mutant K185R/I274N -

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Basic information

Entry
Database: PDB / ID: 3ur5
TitleCrystal Structure of PTE mutant K185R/I274N
ComponentsParathion hydrolase
KeywordsHYDROLASE / metalloenzyme / TIM barrel / nerve agents / phosphotriesterase
Function / homology
Function and homology information


aryldialkylphosphatase activity / aryldialkylphosphatase / catabolic process / zinc ion binding / plasma membrane
Similarity search - Function
Aryldialkylphosphatase, zinc-binding site / Phosphotriesterase family signature 1. / Phosphotriesterase / Phosphotriesterase family / Phosphotriesterase family profile. / Metal-dependent hydrolases / Metal-dependent hydrolase / Twin arginine translocation (Tat) signal profile. / Twin-arginine translocation pathway, signal sequence / TIM Barrel ...Aryldialkylphosphatase, zinc-binding site / Phosphotriesterase family signature 1. / Phosphotriesterase / Phosphotriesterase family / Phosphotriesterase family profile. / Metal-dependent hydrolases / Metal-dependent hydrolase / Twin arginine translocation (Tat) signal profile. / Twin-arginine translocation pathway, signal sequence / TIM Barrel / Alpha-Beta Barrel / Alpha Beta
Similarity search - Domain/homology
: / DIETHYL HYDROGEN PHOSPHATE / Parathion hydrolase
Similarity search - Component
Biological speciesBrevundimonas diminuta (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.6 Å
AuthorsTsai, P. / Fox, N.G. / Li, Y. / Barondeau, D.P. / Raushel, F.M.
CitationJournal: Biochemistry / Year: 2012
Title: Enzymes for the homeland defense: optimizing phosphotriesterase for the hydrolysis of organophosphate nerve agents.
Authors: Tsai, P.C. / Fox, N. / Bigley, A.N. / Harvey, S.P. / Barondeau, D.P. / Raushel, F.M.
History
DepositionNov 21, 2011Deposition site: RCSB / Processing site: RCSB
Revision 1.0Aug 1, 2012Provider: repository / Type: Initial release
Revision 1.1Oct 3, 2012Group: Database references
Revision 1.2Nov 20, 2019Group: Database references / Derived calculations
Category: pdbx_struct_conn_angle / struct_conn ...pdbx_struct_conn_angle / struct_conn / struct_conn_type / struct_ref_seq_dif
Item: _struct_conn_type.id / _struct_ref_seq_dif.details
Revision 1.3Sep 13, 2023Group: 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_conn_type / 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_seq_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _pdbx_struct_conn_angle.value / _struct_conn.conn_type_id / _struct_conn.id / _struct_conn.pdbx_dist_value / _struct_conn.pdbx_leaving_atom_flag / _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_conn_type.id / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id
Revision 1.4Dec 6, 2023Group: Data collection / Category: chem_comp_atom / chem_comp_bond / Item: _chem_comp_atom.atom_id / _chem_comp_bond.atom_id_2

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Parathion hydrolase
B: Parathion hydrolase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)71,7249
Polymers71,1212
Non-polymers6037
Water10,953608
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area4220 Å2
ΔGint-67 kcal/mol
Surface area22470 Å2
MethodPISA
Unit cell
Length a, b, c (Å)85.483, 85.985, 88.006
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number18
Space group name H-MP21212

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Components

#1: Protein Parathion hydrolase / Phosphotriesterase / PTE


Mass: 35560.406 Da / Num. of mol.: 2 / Fragment: UNP residues 35-361 / Mutation: K185R/I274N
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Brevundimonas diminuta (bacteria) / Gene: opd / Production host: Escherichia coli (E. coli) / Strain (production host): BL21(DE3) / References: UniProt: P0A434, aryldialkylphosphatase
#2: Chemical ChemComp-DPF / DIETHYL HYDROGEN PHOSPHATE


Mass: 154.102 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C4H11O4P
#3: Chemical
ChemComp-CO / COBALT (II) ION


Mass: 58.933 Da / Num. of mol.: 5 / Source method: obtained synthetically / Formula: Co
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 608 / 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: 2.27 Å3/Da / Density % sol: 45.91 %
Crystal growTemperature: 295 K / Method: vapor diffusion, hanging drop / pH: 7.5
Details: 2 uL 11.5 mg/mL protein + 2 uL seeding solution (24% PEG5000 MME, 4% dioxane, 1.0 mM cobalt chloride, 100 mM diethylphosphate, 0.1 M HEPES, pH 7.5) over 500 uL precipitating agent (25% ...Details: 2 uL 11.5 mg/mL protein + 2 uL seeding solution (24% PEG5000 MME, 4% dioxane, 1.0 mM cobalt chloride, 100 mM diethylphosphate, 0.1 M HEPES, pH 7.5) over 500 uL precipitating agent (25% PEG5000 MME), VAPOR DIFFUSION, HANGING DROP, temperature 295K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: SSRL / Beamline: BL11-1 / Wavelength: 0.97945 Å
DetectorType: MARMOSAIC 325 mm CCD / Detector: CCD / Date: Jul 25, 2009
RadiationMonochromator: Si(111), Side scattering bent cube-root I-beam single crystal, asymmetric cut 4.965 degs
Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.97945 Å / Relative weight: 1
ReflectionResolution: 1.6→50 Å / Num. all: 86462 / Num. obs: 86431 / % possible obs: 100 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Redundancy: 18.3 % / Biso Wilson estimate: 23.4 Å2 / Rsym value: 0.071 / Net I/σ(I): 38.2
Reflection shellResolution: 1.6→1.66 Å / Redundancy: 13 % / Mean I/σ(I) obs: 8.8 / Num. unique all: 8508 / Rsym value: 0.372 / % possible all: 99.7

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Processing

Software
NameClassification
HKL-2000data collection
PHASERphasing
CNSrefinement
HKL-2000data reduction
HKL-2000data scaling
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ENTRY 1HZY

1hzy


Resolution: 1.6→50 Å / Occupancy max: 1 / Occupancy min: 0.65 / Cross valid method: THROUGHOUT / σ(F): 0 / Stereochemistry target values: Engh & Huber
RfactorNum. reflection% reflectionSelection details
Rfree0.2276 4306 5 %RANDOM
Rwork0.2091 81777 --
obs-86083 100 %-
Solvent computationBsol: 24.9633 Å2
Displacement parametersBiso max: 63.51 Å2 / Biso mean: 27.1378 Å2 / Biso min: 12.08 Å2
Baniso -1Baniso -2Baniso -3
1--6.008 Å20 Å20 Å2
2--8.682 Å20 Å2
3----2.673 Å2
Refinement stepCycle: LAST / Resolution: 1.6→50 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms4975 0 23 608 5606
Refine LS restraints
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONc_bond_d0.012
X-RAY DIFFRACTIONc_angle_d1.594
X-RAY DIFFRACTIONc_mcbond_it1.0551.5
X-RAY DIFFRACTIONc_scbond_it1.6532
X-RAY DIFFRACTIONc_mcangle_it1.6232
X-RAY DIFFRACTIONc_scangle_it2.3892.5
LS refinement shellResolution: 1.6→1.66 Å
RfactorNum. reflection
Rfree0.316 434
Rwork0.288 -
obs-8044
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1CNS_TOPPAR:protein.gfp.paramCNS_TOPPAR:protein.gfp.top
X-RAY DIFFRACTION2CNS_TOPPAR:dna-rna_rep.paramCNS_TOPPAR:dna-rna.top
X-RAY DIFFRACTION3CNS_TOPPAR:water_rep.paramCNS_TOPPAR:water.top
X-RAY DIFFRACTION4CNS_TOPPAR:ion.paramCNS_TOPPAR:ion.top
X-RAY DIFFRACTION5CNS_TOPPAR:co.paramCNS_TOPPAR:co.top

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