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- PDB-8ilf: The crystal structure of dGTPalphaSe-Sp:DNApre-II:Pol X substrate... -

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Basic information

Entry
Database: PDB / ID: 8ilf
TitleThe crystal structure of dGTPalphaSe-Sp:DNApre-II:Pol X substrate ternary complex
Components
  • DNA (5'-D(*CP*TP*GP*GP*AP*TP*CP*CP*A)-3')
  • Repair DNA polymerase X
KeywordsREPLICATION/DNA / DNA polymerase / substrate complex / dNTPalphaSe / configuration / REPLICATION-DNA complex
Function / homology
Function and homology information


virion component / base-excision repair / double-strand break repair via nonhomologous end joining / DNA-directed DNA polymerase / DNA-directed DNA polymerase activity / DNA binding / metal ion binding
Similarity search - Function
Polymerase, nucleotidyl transferase domain / Nucleotidyltransferase domain / DNA polymerase family X, binding site / DNA polymerase family X signature. / DNA polymerase family X / DNA polymerase beta, thumb domain / DNA polymerase beta thumb / DNA polymerase, thumb domain superfamily / Nucleotidyltransferase superfamily
Similarity search - Domain/homology
Chem-7Q6 / : / DNA / Repair DNA polymerase X
Similarity search - Component
Biological speciesAfrican swine fever virus
synthetic construct (others)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.3 Å
AuthorsQin, T. / Zhao, Q.W. / Gan, J.H. / Huang, Z.
Funding support China, 4items
OrganizationGrant numberCountry
Ministry of Science and Technology (MoST, China)2022YFC2303700 China
National Natural Science Foundation of China (NSFC)22077089 China
National Natural Science Foundation of China (NSFC)22107079 China
Ministry of Education (MoE, China)2020M673205 China
CitationJournal: Int J Mol Sci / Year: 2023
Title: Structural Insight into Polymerase Mechanism via a Chiral Center Generated with a Single Selenium Atom.
Authors: Qin, T. / Hu, B. / Zhao, Q. / Wang, Y. / Wang, S. / Luo, D. / Lyu, J. / Chen, Y. / Gan, J. / Huang, Z.
History
DepositionMar 3, 2023Deposition site: PDBJ / Processing site: PDBC
Revision 1.0Jan 17, 2024Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Repair DNA polymerase X
B: Repair DNA polymerase X
E: DNA (5'-D(*CP*TP*GP*GP*AP*TP*CP*CP*A)-3')
G: DNA (5'-D(*CP*TP*GP*GP*AP*TP*CP*CP*A)-3')
H: DNA (5'-D(*CP*TP*GP*GP*AP*TP*CP*CP*A)-3')
J: DNA (5'-D(*CP*TP*GP*GP*AP*TP*CP*CP*A)-3')
hetero molecules


Theoretical massNumber of molelcules
Total (without water)53,27310
Polymers52,0236
Non-polymers1,2504
Water1,26170
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)59.666, 78.190, 101.304
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 Repair DNA polymerase X / Pol X / AsfvPolX


Mass: 20579.697 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) African swine fever virus (strain Badajoz 1971 Vero-adapted)
Gene: Ba71V-97, O174L / Production host: Escherichia coli (E. coli) / References: UniProt: P42494, DNA-directed DNA polymerase
#2: DNA chain
DNA (5'-D(*CP*TP*GP*GP*AP*TP*CP*CP*A)-3')


Mass: 2715.799 Da / Num. of mol.: 4 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others)
#3: Chemical ChemComp-MN / MANGANESE (II) ION


Mass: 54.938 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Mn
#4: Chemical ChemComp-7Q6 / [[(2R,3S,5R)-5-(2-azanyl-6-oxidanylidene-1H-purin-9-yl)-3-oxidanyl-oxolan-2-yl]methoxy-selanyl-phosphoryl] phosphono hydrogen phosphate


Mass: 570.142 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C10H16N5O12P3Se / Feature type: SUBJECT OF INVESTIGATION
#5: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 70 / Source method: isolated from a natural source / Formula: H2O
Has ligand of interestY

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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: 2.28 Å3/Da / Density % sol: 45.96 %
Crystal growTemperature: 289.15 K / Method: vapor diffusion, hanging drop
Details: ammonium sulfate (0.2 M), Bis-Tris pH 5.5 (0.1 M), 20% PEG8000

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Data collection

DiffractionMean temperature: 100 K / Serial crystal experiment: N
Diffraction sourceSource: SYNCHROTRON / Site: SSRF / Beamline: BL17U1 / Wavelength: 0.977 Å
DetectorType: MARMOSAIC 325 mm CCD / Detector: CCD / Date: Nov 4, 2016
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.977 Å / Relative weight: 1
ReflectionResolution: 2.3→30 Å / Num. obs: 21788 / % possible obs: 99.9 % / Redundancy: 12.7 % / Rmerge(I) obs: 0.117 / Χ2: 0.216 / Net I/σ(I): 7.8
Reflection shell
Resolution (Å)Redundancy (%)Rmerge(I) obsNum. unique obsΧ2Diffraction-ID% possible all
3-3.1112.81.22521231.0431100
3.11-3.2313.40.74221231.061199.8
3.23-3.3813.30.42910631.0091100
3.38-3.5613.10.34510601.2541100
3.56-3.7812.80.22810691.209199.9
3.78-4.0711.30.14610851.131199.6
4.07-4.4812.40.08510780.933199.9
4.48-5.1213.30.06511030.849199.9
5.12-6.4412.80.0611140.943199.8
6.44-3011.60.09811802.246199.7

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Processing

Software
NameVersionClassification
REFMAC5.7.0029refinement
HKL-3000data reduction
HKL-3000data scaling
PHASERphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT / Resolution: 2.3→30 Å / Cor.coef. Fo:Fc: 0.938 / Cor.coef. Fo:Fc free: 0.913 / SU B: 7.721 / SU ML: 0.186 / Cross valid method: THROUGHOUT / ESU R: 0.391 / ESU R Free: 0.245 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
RfactorNum. reflection% reflectionSelection details
Rfree0.24462 1096 5.1 %RANDOM
Rwork0.20437 ---
obs0.20647 20337 98.89 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK
Displacement parametersBiso mean: 31.343 Å2
Baniso -1Baniso -2Baniso -3
1--0.15 Å20 Å20 Å2
2---0.44 Å20 Å2
3---0.59 Å2
Refinement stepCycle: 1 / Resolution: 2.3→30 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2840 717 64 70 3691
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0080.0183758
X-RAY DIFFRACTIONr_bond_other_d0.0020.023417
X-RAY DIFFRACTIONr_angle_refined_deg1.3851.825221
X-RAY DIFFRACTIONr_angle_other_deg1.01437859
X-RAY DIFFRACTIONr_dihedral_angle_1_deg5.6095352
X-RAY DIFFRACTIONr_dihedral_angle_2_deg33.7322.973111
X-RAY DIFFRACTIONr_dihedral_angle_3_deg14.50715572
X-RAY DIFFRACTIONr_dihedral_angle_4_deg16.9931520
X-RAY DIFFRACTIONr_chiral_restr0.0680.2567
X-RAY DIFFRACTIONr_gen_planes_refined0.0050.023564
X-RAY DIFFRACTIONr_gen_planes_other0.0010.02828
X-RAY DIFFRACTIONr_nbd_refined
X-RAY DIFFRACTIONr_nbd_other
X-RAY DIFFRACTIONr_nbtor_refined
X-RAY DIFFRACTIONr_nbtor_other
X-RAY DIFFRACTIONr_xyhbond_nbd_refined
X-RAY DIFFRACTIONr_xyhbond_nbd_other
X-RAY DIFFRACTIONr_metal_ion_refined
X-RAY DIFFRACTIONr_metal_ion_other
X-RAY DIFFRACTIONr_symmetry_vdw_refined
X-RAY DIFFRACTIONr_symmetry_vdw_other
X-RAY DIFFRACTIONr_symmetry_hbond_refined
X-RAY DIFFRACTIONr_symmetry_hbond_other
X-RAY DIFFRACTIONr_symmetry_metal_ion_refined
X-RAY DIFFRACTIONr_symmetry_metal_ion_other
X-RAY DIFFRACTIONr_mcbond_it1.6072.9971414
X-RAY DIFFRACTIONr_mcbond_other1.6052.9951413
X-RAY DIFFRACTIONr_mcangle_it2.7224.4871764
X-RAY DIFFRACTIONr_mcangle_other2.7214.4891765
X-RAY DIFFRACTIONr_scbond_it1.723.3152344
X-RAY DIFFRACTIONr_scbond_other1.723.3162345
X-RAY DIFFRACTIONr_scangle_it
X-RAY DIFFRACTIONr_scangle_other2.8994.9173458
X-RAY DIFFRACTIONr_long_range_B_refined4.4325.844192
X-RAY DIFFRACTIONr_long_range_B_other4.4325.8444193
X-RAY DIFFRACTIONr_rigid_bond_restr
X-RAY DIFFRACTIONr_sphericity_free
X-RAY DIFFRACTIONr_sphericity_bonded
LS refinement shellResolution: 2.3→2.359 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.31 79 -
Rwork0.26 1353 -
obs--92.99 %

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