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- PDB-2gvu: Crystal structure of diisopropyl fluorophosphatase (DFPase), muta... -

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Basic information

Entry
Database: PDB / ID: 2gvu
TitleCrystal structure of diisopropyl fluorophosphatase (DFPase), mutant D229N / N120D
ComponentsPhosphotriesterase
KeywordsHYDROLASE / phosphotriesterase / beta-propeller
Function / homology
Function and homology information


diisopropyl-fluorophosphatase / diisopropyl-fluorophosphatase activity / calcium ion binding
Similarity search - Function
: / SMP-30/Gluconolactonase/LRE-like region / SMP-30/Gluconolactonase/LRE-like region / TolB, C-terminal domain / Six-bladed beta-propeller, TolB-like / 6 Propeller / Neuraminidase / Mainly Beta
Similarity search - Domain/homology
Diisopropyl-fluorophosphatase
Similarity search - Component
Biological speciesLoligo vulgaris (squid)
MethodX-RAY DIFFRACTION / MOLECULAR REPLACEMENT / Resolution: 2 Å
AuthorsChen, J.C.H. / Blum, M.M.
CitationJournal: J.Am.Chem.Soc. / Year: 2006
Title: Binding of a designed substrate analogue to diisopropyl fluorophosphatase: implications for the phosphotriesterase mechanism.
Authors: Blum, M.M. / Lohr, F. / Richardt, A. / Ruterjans, H. / Chen, J.C.
History
DepositionMay 3, 2006Deposition site: RCSB / Processing site: RCSB
Revision 1.0Sep 19, 2006Provider: repository / Type: Initial release
Revision 1.1May 1, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Oct 20, 2021Group: Database references / Derived calculations
Category: database_2 / pdbx_struct_conn_angle ...database_2 / 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.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.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

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Phosphotriesterase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)35,2013
Polymers35,1211
Non-polymers802
Water2,468137
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)43.430, 82.230, 87.300
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number19
Space group name H-MP212121

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Components

#1: Protein Phosphotriesterase / Diisopropyl phosphatase / DFPase


Mass: 35120.707 Da / Num. of mol.: 1 / Mutation: D229N, N120D
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Loligo vulgaris (squid) / Production host: Escherichia coli (E. coli) / References: UniProt: Q7SIG4, EC: 3.1.8.2
#2: Chemical ChemComp-CA / CALCIUM ION


Mass: 40.078 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Ca
#3: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 137 / 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: 2.22 Å3/Da / Density % sol: 44.54 %
Crystal growTemperature: 298 K / Method: vapor diffusion, hanging drop / pH: 6.5
Details: PEG 4000, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K

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Data collection

DiffractionMean temperature: 298 K
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU RU200 / Wavelength: 1.5418 Å
DetectorType: MAR scanner 345 mm plate / Detector: IMAGE PLATE / Date: Jul 30, 2005
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 2→20 Å / Num. all: 21672 / Num. obs: 19829 / % possible obs: 91.5 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0

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Processing

Software
NameVersionClassificationNB
CNSrefinement
PDB_EXTRACT1.701data extraction
ADSCdata collection
SCALEPACKdata scaling
CNSphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT / Resolution: 2→20 Å / σ(F): 0 / Stereochemistry target values: Engh & Huber
RfactorNum. reflection% reflectionSelection details
Rfree0.243 1357 6.2 %RANDOM
Rwork0.182 ---
all0.182 19829 --
obs0.182 18472 84.7 %-
Solvent computationBsol: 37.422 Å2
Displacement parametersBiso mean: 27.116 Å2
Baniso -1Baniso -2Baniso -3
1--8.311 Å20 Å20 Å2
2--5.174 Å20 Å2
3---3.137 Å2
Refinement stepCycle: LAST / Resolution: 2→20 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2451 0 2 137 2590
Refine LS restraints
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONc_mcbond_it1.4121.5
X-RAY DIFFRACTIONc_scbond_it2.2242
X-RAY DIFFRACTIONc_mcangle_it2.2552
X-RAY DIFFRACTIONc_scangle_it3.3172.5
Xplor file
Refine-IDSerial noParam file
X-RAY DIFFRACTION1CNS_TOPPAR:protein_rep.param
X-RAY DIFFRACTION2CNS_TOPPAR:water.param
X-RAY DIFFRACTION3CNS_TOPPAR:ion.param

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