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- PDB-1ov6: M64V PNP + ALLO -

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Basic information

Entry
Database: PDB / ID: 1ov6
TitleM64V PNP + ALLO
ComponentsPurine nucleoside phosphorylase
KeywordsTRANSFERASE / M64V / mutant PNP / ALLO
Function / homology
Function and homology information


purine nucleoside interconversion / guanosine phosphorylase activity / purine nucleoside catabolic process / purine-nucleoside phosphorylase / purine-nucleoside phosphorylase activity / DNA damage response / membrane / identical protein binding / cytosol
Similarity search - Function
Purine nucleoside phosphorylase DeoD-type / Nucleoside phosphorylase, conserved site / Purine and other phosphorylases family 1 signature. / Nucleoside phosphorylase domain / Nucleoside phosphorylase domain / Phosphorylase superfamily / Nucleoside phosphorylase superfamily / Rossmann fold / 3-Layer(aba) Sandwich / Alpha Beta
Similarity search - Domain/homology
9-(6-DEOXY-BETA-D-ALLOFURANOSYL)-6-METHYLPURINE / PHOSPHATE ION / Purine nucleoside phosphorylase DeoD-type
Similarity search - Component
Biological speciesEscherichia coli (E. coli)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.4 Å
AuthorsEalick, S.E. / Bennett, E.M. / Anand, R. / Secrist, J.A. / Parker, P.W. / Hassan, A.E. / Allan, P.W. / McPherson, D.T. / Sorscher, E.J.
CitationJournal: Chem.Biol. / Year: 2003
Title: Designer gene therapy using an Escherichia coli purine nucleoside phosphorylase/prodrug system.
Authors: Bennett, E.M. / Anand, R. / Allan, P.W. / Hassan, A.E. / Hong, J.S. / Levasseur, D.N. / McPherson, D.T. / Parker, W.B. / Secrist, J.A. / Sorscher, E.J. / Townes, T.M. / Waud, W.R. / Ealick, S.E.
History
DepositionMar 25, 2003Deposition site: RCSB / Processing site: RCSB
Revision 1.0Feb 17, 2004Provider: 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 27, 2021Group: Database references / Derived calculations / Category: database_2 / 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 / _struct_ref_seq_dif.details / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id
Revision 1.4Feb 14, 2024Group: Data collection / Category: chem_comp_atom / chem_comp_bond

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Purine nucleoside phosphorylase
B: Purine nucleoside phosphorylase
C: Purine nucleoside phosphorylase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)78,5829
Polymers77,4563
Non-polymers1,1266
Water3,333185
1
A: Purine nucleoside phosphorylase
B: Purine nucleoside phosphorylase
C: Purine nucleoside phosphorylase
hetero molecules

A: Purine nucleoside phosphorylase
B: Purine nucleoside phosphorylase
C: Purine nucleoside phosphorylase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)157,16418
Polymers154,9126
Non-polymers2,25212
Water1086
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation12_555x,x-y,-z+1/61
Buried area25930 Å2
ΔGint-166 kcal/mol
Surface area44340 Å2
MethodPISA, PQS
Unit cell
Length a, b, c (Å)120.550, 120.550, 241.030
Angle α, β, γ (deg.)90.00, 90.00, 120.00
Int Tables number178
Space group name H-MP6122

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Components

#1: Protein Purine nucleoside phosphorylase / / Inosine phosphorylase / PNP


Mass: 25818.684 Da / Num. of mol.: 3 / Fragment: Purine Nuleoside Phosphorylase / Mutation: M64V
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Escherichia coli (E. coli) / Gene: DEOD OR PUP OR B4384 OR Z5986 OR ECS5343 / Production host: Escherichia coli (E. coli)
References: UniProt: P0ABP8, purine-nucleoside phosphorylase
#2: Chemical ChemComp-PO4 / PHOSPHATE ION / Phosphate


Mass: 94.971 Da / Num. of mol.: 3 / Source method: obtained synthetically / Formula: PO4
#3: Chemical ChemComp-DBM / 9-(6-DEOXY-BETA-D-ALLOFURANOSYL)-6-METHYLPURINE


Type: RNA linking / Mass: 280.280 Da / Num. of mol.: 3 / Source method: obtained synthetically / Formula: C12H16N4O4
#4: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 185 / 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: 3.26 Å3/Da / Density % sol: 62.3 %
Crystal growTemperature: 295 K / Method: vapor diffusion, hanging drop / pH: 5.4
Details: 50mM sodium citrate, 30% ammonium sulfate, pH 5.4, VAPOR DIFFUSION, HANGING DROP, temperature 295K
Crystal grow
*PLUS
pH: 8 / Method: vapor diffusion, hanging drop
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-IDDetailsChemical formula
110 mM1droppH8.0KH2PO4
235 mg/mlprotein1drop
330 %ammonium sulfate1reservoir
450 mMcitrate1reservoirpH5.4

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Data collection

DiffractionMean temperature: 170 K
Diffraction sourceSource: SYNCHROTRON / Site: CHESS / Beamline: F1 / Wavelength: 0.948 Å
DetectorType: ADSC QUANTUM 4 / Detector: CCD / Date: Dec 25, 2001
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.948 Å / Relative weight: 1
ReflectionResolution: 2.4→25 Å / Num. all: 41133 / Num. obs: 41133 / % possible obs: 100 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Redundancy: 10 % / Biso Wilson estimate: 26 Å2 / Rmerge(I) obs: 0.11 / Rsym value: 0.11 / Net I/σ(I): 4.5
Reflection shellResolution: 2.4→2.55 Å / Redundancy: 10 % / Rmerge(I) obs: 0.332 / Mean I/σ(I) obs: 2.1 / Rsym value: 0.332 / % possible all: 100
Reflection
*PLUS
Redundancy: 10 % / Rmerge(I) obs: 0.11
Reflection shell
*PLUS
% possible obs: 100 %

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Processing

Software
NameVersionClassification
CNS1refinement
MOSFLMdata reduction
CCP4(SCALA)data scaling
CNSphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT / Resolution: 2.4→24.82 Å / Rfactor Rfree error: 0.004 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 0 / σ(I): 0 / Stereochemistry target values: Engh & Huber
RfactorNum. reflection% reflectionSelection details
Rfree0.258 4122 10 %RANDOM
Rwork0.224 ---
obs0.224 41133 99.7 %-
all-41133 --
Solvent computationSolvent model: FLAT MODEL / Bsol: 50.9449 Å2 / ksol: 0.447286 e/Å3
Displacement parametersBiso mean: 25.2 Å2
Baniso -1Baniso -2Baniso -3
1-2.84 Å23.77 Å20 Å2
2--2.84 Å20 Å2
3----5.68 Å2
Refine analyze
FreeObs
Luzzati coordinate error0.32 Å0.26 Å
Luzzati d res low-5 Å
Luzzati sigma a0.24 Å0.2 Å
Refinement stepCycle: LAST / Resolution: 2.4→24.82 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms5376 0 75 185 5636
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONc_bond_d0.007
X-RAY DIFFRACTIONc_angle_deg1.4
X-RAY DIFFRACTIONc_dihedral_angle_d23.4
X-RAY DIFFRACTIONc_improper_angle_d0.89
LS refinement shellResolution: 2.4→2.55 Å / Rfactor Rfree error: 0.01 / Total num. of bins used: 6
RfactorNum. reflection% reflection
Rfree0.26 668 9.9 %
Rwork0.223 6049 -
obs--100 %
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1PROTEIN_REP.PARAMPROTEIN.TOP
X-RAY DIFFRACTION2ION.PARAMALO.TOP
X-RAY DIFFRACTION3ALO.PARION.TOP
X-RAY DIFFRACTION4WATER_REP.PARAMWATER.TOP
Refinement
*PLUS
Highest resolution: 2.4 Å / Lowest resolution: 25 Å / Rfactor Rwork: 0.23
Solvent computation
*PLUS
Displacement parameters
*PLUS
Refine LS restraints
*PLUS
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONc_bond_d0.006
X-RAY DIFFRACTIONc_angle_deg1.35
X-RAY DIFFRACTIONc_dihedral_angle_d
X-RAY DIFFRACTIONc_dihedral_angle_deg23.4
X-RAY DIFFRACTIONc_improper_angle_d
X-RAY DIFFRACTIONc_improper_angle_deg0.89

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