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- PDB-4da7: Crystal structure of the hexameric purine nucleoside phosphorylas... -

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Basic information

Entry
Database: PDB / ID: 4da7
TitleCrystal structure of the hexameric purine nucleoside phosphorylase from Bacillus subtilis in complex with aciclovir
ComponentsPurine nucleoside phosphorylase deoD-type
KeywordsTRANSFERASE / Phosphorylase/hydrolase-like
Function / homology
Function and homology information


purine-nucleoside phosphorylase / purine-nucleoside phosphorylase activity / purine nucleoside catabolic process / 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-HYROXYETHOXYMETHYLGUANINE / PHOSPHATE ION / Purine nucleoside phosphorylase DeoD-type
Similarity search - Component
Biological speciesBacillus subtilis (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / molecular replacement / Resolution: 2.05 Å
AuthorsMartins, N.H. / Giuseppe, P.O. / Meza, A.N. / Murakami, M.T.
CitationJournal: Plos One / Year: 2012
Title: Insights into phosphate cooperativity and influence of substrate modifications on binding and catalysis of hexameric purine nucleoside phosphorylases.
Authors: de Giuseppe, P.O. / Martins, N.H. / Meza, A.N. / Dos Santos, C.R. / Pereira, H.D. / Murakami, M.T.
History
DepositionJan 12, 2012Deposition site: RCSB / Processing site: RCSB
Revision 1.0Sep 26, 2012Provider: repository / Type: Initial release
Revision 1.1Feb 28, 2024Group: Data collection / Database references / Derived calculations
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / 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

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Purine nucleoside phosphorylase deoD-type
hetero molecules


Theoretical massNumber of molelcules
Total (without water)27,8823
Polymers27,5621
Non-polymers3202
Water1,65792
1
A: Purine nucleoside phosphorylase deoD-type
hetero molecules
x 6


Theoretical massNumber of molelcules
Total (without water)167,29418
Polymers165,3736
Non-polymers1,92112
Water1086
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation2_565-y,x-y+1,z1
crystal symmetry operation3_455-x+y-1,-x,z1
crystal symmetry operation10_555-y,-x,-z+1/21
crystal symmetry operation11_455-x+y-1,y,-z+1/21
crystal symmetry operation12_565x,x-y+1,-z+1/21
Buried area26080 Å2
ΔGint-135 kcal/mol
Surface area44840 Å2
MethodPISA
Unit cell
Length a, b, c (Å)135.050, 135.050, 57.875
Angle α, β, γ (deg.)90.000, 90.000, 120.000
Int Tables number182
Space group name H-MP6322
Components on special symmetry positions
IDModelComponents
11A-401-

HOH

21A-408-

HOH

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Components

#1: Protein Purine nucleoside phosphorylase deoD-type / PNP / Purine nucleoside phosphorylase II / PU-NPase II


Mass: 27562.137 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Bacillus subtilis (bacteria) / Gene: BSU19630, deoD, punB / Plasmid: pET28a / Production host: Escherichia coli (E. coli) / Strain (production host): Rosetta
References: UniProt: O34925, purine-nucleoside phosphorylase
#2: Chemical ChemComp-AC2 / 9-HYROXYETHOXYMETHYLGUANINE


Mass: 225.205 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C8H11N5O3
#3: Chemical ChemComp-PO4 / PHOSPHATE ION


Mass: 94.971 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: PO4
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 92 / Source method: isolated from a natural source / Formula: H2O
Sequence detailsAUTHORS STATE THAT THIS IS A CLONING ARTIFACT

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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: 2.76 Å3/Da / Density % sol: 55.5 %
Crystal growTemperature: 291 K / Method: vapor diffusion / pH: 4.6
Details: 0.1 M sodium acetate, 3.2 M sodium chloride, 5%(v/v) glycerol, pH 4.6, vapor diffusion, temperature 291K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: LNLS / Beamline: W01B-MX2
DetectorType: MARMOSAIC 225 mm CCD / Detector: CCD
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthRelative weight: 1
ReflectionResolution: 2.05→50 Å / Num. obs: 19958 / % possible obs: 99.5 % / Redundancy: 5.7 % / Rmerge(I) obs: 0.081 / Χ2: 1.033 / Net I/σ(I): 8.7
Reflection shell
Resolution (Å)Redundancy (%)Rmerge(I) obsNum. unique allΧ2Diffraction-ID% possible all
2.05-2.125.20.49119291.037198.7
2.12-2.215.60.38919551.052199.3
2.21-2.315.70.31919511.046199.5
2.31-2.435.80.24719581.024199.4
2.43-2.585.90.20419740.984199.7
2.58-2.785.90.15419811.062199.8
2.78-3.065.90.11320031.0521100
3.06-3.515.80.0920021.0541100
3.51-4.425.70.05220451.014199.8
4.42-505.40.03421601.006198.9

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Phasing

PhasingMethod: molecular replacement

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Processing

Software
NameVersionClassificationNB
SCALEPACKdata scaling
MOLREPphasing
REFMACrefinement
PDB_EXTRACT3.1data extraction
HKL-2000data reduction
HKL-2000data scaling
RefinementMethod to determine structure: MOLECULAR REPLACEMENT / Resolution: 2.05→41.14 Å / Cor.coef. Fo:Fc: 0.955 / Cor.coef. Fo:Fc free: 0.93 / WRfactor Rfree: 0.2271 / WRfactor Rwork: 0.1874 / Occupancy max: 1 / Occupancy min: 0.2 / FOM work R set: 0.8523 / SU B: 3.806 / SU ML: 0.105 / SU R Cruickshank DPI: 0.1658 / SU Rfree: 0.1544 / Cross valid method: THROUGHOUT / σ(F): 0 / ESU R: 0.166 / ESU R Free: 0.154 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
RfactorNum. reflection% reflectionSelection details
Rfree0.232 1007 5.1 %RANDOM
Rwork0.1923 ---
obs0.1942 19815 98.88 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.4 Å / Solvent model: MASK
Displacement parametersBiso max: 68.18 Å2 / Biso mean: 32.553 Å2 / Biso min: 13.28 Å2
Baniso -1Baniso -2Baniso -3
1-0.01 Å20 Å20 Å2
2--0.01 Å20 Å2
3----0.01 Å2
Refinement stepCycle: LAST / Resolution: 2.05→41.14 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms1761 0 21 92 1874
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0170.0221840
X-RAY DIFFRACTIONr_angle_refined_deg1.5361.9752496
X-RAY DIFFRACTIONr_dihedral_angle_1_deg65238
X-RAY DIFFRACTIONr_dihedral_angle_2_deg36.1292578
X-RAY DIFFRACTIONr_dihedral_angle_3_deg15.71815316
X-RAY DIFFRACTIONr_dihedral_angle_4_deg16.514158
X-RAY DIFFRACTIONr_chiral_restr0.1060.2288
X-RAY DIFFRACTIONr_gen_planes_refined0.0060.021378
X-RAY DIFFRACTIONr_mcbond_it0.861.51155
X-RAY DIFFRACTIONr_mcangle_it1.5221867
X-RAY DIFFRACTIONr_scbond_it2.5823685
X-RAY DIFFRACTIONr_scangle_it4.3074.5626
LS refinement shellResolution: 2.05→2.103 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.255 72 -
Rwork0.256 1334 -
all-1406 -
obs--97.64 %

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