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- PDB-3ura: Crystal Structure of PTE mutant H254G/H257W/L303T/K185R/I274N/A80... -

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Basic information

Entry
Database: PDB / ID: 3ura
TitleCrystal Structure of PTE mutant H254G/H257W/L303T/K185R/I274N/A80V/S61T
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
: / IMIDAZOLE / Parathion hydrolase
Similarity search - Component
Biological speciesBrevundimonas diminuta (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.88 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 1.2Sep 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_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_asym_id / _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.ptnr2_auth_asym_id / _pdbx_struct_conn_angle.ptnr2_auth_seq_id / _pdbx_struct_conn_angle.ptnr2_label_asym_id / _pdbx_struct_conn_angle.ptnr3_auth_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.value / _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_ref_seq_dif.details / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id
Revision 1.3Dec 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)71,4207
Polymers71,1152
Non-polymers3055
Water6,684371
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area3560 Å2
ΔGint-57 kcal/mol
Surface area22680 Å2
MethodPISA
Unit cell
Length a, b, c (Å)85.207, 85.521, 88.140
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: 35557.395 Da / Num. of mol.: 2 / Fragment: UNP residues 35-361 / Mutation: H254G/H257W/L303T/K185R/I274N/A80V/S61T
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-IMD / IMIDAZOLE


Mass: 69.085 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C3H5N2
#3: Chemical
ChemComp-CO / COBALT (II) ION


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


Mass: 18.015 Da / Num. of mol.: 371 / 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: 45.52 %
Crystal growTemperature: 295 K / Method: vapor diffusion, hanging drop / pH: 7
Details: 2 uL 10.1 mg/mL protein + 2 uL seeding solution (24% PEG5000 MME, 4% dioxane, 1.0 mM cobalt chloride, 0.1 M imidazole, pH 7.0) over 500 uL precipitating agent (18% PEG5000 MME), VAPOR ...Details: 2 uL 10.1 mg/mL protein + 2 uL seeding solution (24% PEG5000 MME, 4% dioxane, 1.0 mM cobalt chloride, 0.1 M imidazole, pH 7.0) over 500 uL precipitating agent (18% 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: 1.88→50 Å / Num. all: 52186 / Num. obs: 52153 / % possible obs: 99.9 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Redundancy: 14.7 % / Biso Wilson estimate: 29.7 Å2 / Rsym value: 0.108 / Net I/σ(I): 23.4
Reflection shellResolution: 1.88→1.95 Å / Redundancy: 14.5 % / Mean I/σ(I) obs: 10.5 / Num. unique all: 5117 / Rsym value: 0.323 / % possible all: 100

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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: 1.88→50 Å / Occupancy max: 1 / Occupancy min: 1 / Cross valid method: THROUGHOUT / σ(F): 0 / Stereochemistry target values: Engh & Huber / Details: RANDOM
RfactorNum. reflection% reflection
Rfree0.253 2662 5 %
Rwork0.232 49478 -
obs-52140 98.2 %
Solvent computationBsol: 25.4719 Å2
Displacement parametersBiso max: 87.67 Å2 / Biso mean: 42.2912 Å2 / Biso min: 14.12 Å2
Baniso -1Baniso -2Baniso -3
1-11.155 Å20 Å20 Å2
2---6.733 Å20 Å2
3----4.422 Å2
Refinement stepCycle: LAST / Resolution: 1.88→50 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms4971 0 9 371 5351
Refine LS restraints
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONc_bond_d0.016
X-RAY DIFFRACTIONc_angle_d1.65
X-RAY DIFFRACTIONc_mcbond_it1.1541.5
X-RAY DIFFRACTIONc_scbond_it1.6232
X-RAY DIFFRACTIONc_mcangle_it1.7642
X-RAY DIFFRACTIONc_scangle_it2.3482.5
LS refinement shellResolution: 1.88→1.95 Å
RfactorNum. reflection
Rfree0.344 224
Rwork0.307 -
obs-4127
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 DIFFRACTION5co.param.txtco.top.txt

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