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- PDB-1p6c: crystal structure of phosphotriesterase triple mutant H254G/H257W... -

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Basic information

Entry
Database: PDB / ID: 1p6c
Titlecrystal structure of phosphotriesterase triple mutant H254G/H257W/L303T complexed with diisopropylmethylphosphonate
ComponentsParathion hydrolase
KeywordsHYDROLASE / metalloenzyme / tim barrel / nerve agent
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
METHYLPHOSPHONIC ACID DIISOPROPYL ESTER / DIETHYL 4-METHYLBENZYLPHOSPHONATE / Parathion hydrolase
Similarity search - Component
Biological speciesFlavobacterium sp. (bacteria)
MethodX-RAY DIFFRACTION / FOURIER SYNTHESIS / Resolution: 2 Å
AuthorsHill, C.M. / Li, W. / Thoden, J.B. / Holden, H.M. / Raushel, F.M.
CitationJournal: J.Am.Chem.Soc. / Year: 2003
Title: Enhanced degradation of chemical warfare agents through molecular engineering of the phosphotriesterase active site.
Authors: Hill, C.M. / Li, W.S. / Thoden, J.B. / Holden, H.M. / Raushel, F.M.
History
DepositionApr 29, 2003Deposition site: RCSB / Processing site: RCSB
Revision 1.0Sep 16, 2003Provider: repository / Type: Initial release
Revision 1.1Apr 29, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Oct 11, 2017Group: Refinement description / Category: software
Revision 1.4Oct 27, 2021Group: Database references / Derived calculations
Category: database_2 / pdbx_struct_conn_angle ...database_2 / pdbx_struct_conn_angle / struct_conn / struct_conn_type / 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.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.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_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 16, 2023Group: Data collection / Refinement description
Category: chem_comp_atom / chem_comp_bond / pdbx_initial_refinement_model
Revision 1.6Nov 15, 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)73,76710
Polymers72,6612
Non-polymers1,1078
Water5,783321
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area5100 Å2
ΔGint-147 kcal/mol
Surface area23810 Å2
MethodPISA
Unit cell
Length a, b, c (Å)130.400, 91.900, 69.700
Angle α, β, γ (deg.)90.00, 90.90, 90.00
Int Tables number5
Space group name H-MC121

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Components

#1: Protein Parathion hydrolase / Phosphotriesterase / PTE


Mass: 36330.312 Da / Num. of mol.: 2 / Mutation: H254G, H257W, L303T
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Flavobacterium sp. (bacteria) / Gene: OPD / Production host: Escherichia coli (E. coli) / Strain (production host): BL21(DE3)pLysS / References: UniProt: P0A433, aryldialkylphosphatase
#2: Chemical
ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: Zn
#3: Chemical ChemComp-EBP / DIETHYL 4-METHYLBENZYLPHOSPHONATE


Mass: 242.251 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C12H19O3P
#4: Chemical ChemComp-DII / METHYLPHOSPHONIC ACID DIISOPROPYL ESTER


Mass: 180.182 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C7H17O3P
#5: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 321 / 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: 2.75 Å3/Da / Density % sol: 54.86 %
Crystal growTemperature: 277 K / Method: batch / pH: 9
Details: PEG8000, CHES, NaCl, diethyl 4-methylbenzylphosphonate, diisopropylmethylphosphonate, pH 9, batch, temperature 277K
Crystal grow
*PLUS
Method: unknown

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Data collection

DiffractionMean temperature: 277 K
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU RU200 / Wavelength: 1.5418 Å
DetectorType: SIEMENS HI-STAR / Detector: AREA DETECTOR / Date: Aug 10, 2001 / Details: supper long mirrors
RadiationMonochromator: Ni Filter / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 2→30 Å / Num. all: 47394 / Num. obs: 47394 / % possible obs: 85.3 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Redundancy: 1.9 % / Rsym value: 0.088 / Net I/σ(I): 8
Reflection shellResolution: 2→2.09 Å / Redundancy: 1.4 % / Mean I/σ(I) obs: 1.5 / Num. unique all: 4850 / Rsym value: 0.328 / % possible all: 66.7
Reflection
*PLUS

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Processing

Software
NameClassification
FRAMBOdata collection
SAINTdata reduction
TNTrefinement
SAINTdata scaling
TNTphasing
RefinementMethod to determine structure: FOURIER SYNTHESIS
Starting model: pdb entry 1P6B

1p6b


Resolution: 2→30 Å / Cross valid method: THROUGHOUT / σ(F): 0 / Stereochemistry target values: Engh & Huber
RfactorNum. reflection% reflectionSelection details
Rfree0.246 4728 -RANDOM
Rwork0.181 ---
all0.185 47394 --
obs0.185 47394 85.3 %-
Refinement stepCycle: LAST / Resolution: 2→30 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms5052 0 58 321 5431
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONt_bond_d0.012
X-RAY DIFFRACTIONt_angle_deg2.2
Refinement
*PLUS
Solvent computation
*PLUS
Displacement parameters
*PLUS

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