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- PDB-9mju: Crystal structure of WRN helicase with allosteric fragment 1 -

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Basic information

Entry
Database: PDB / ID: 9mju
TitleCrystal structure of WRN helicase with allosteric fragment 1
ComponentsBifunctional 3'-5' exonuclease/ATP-dependent helicase WRN
KeywordsHYDROLASE / WRN / Werner / helicase
Function / homology
Function and homology information


positive regulation of hydrolase activity / 3'-flap-structured DNA binding / positive regulation of strand invasion / forked DNA-dependent helicase activity / telomeric G-quadruplex DNA binding / 8-hydroxy-2'-deoxyguanosine DNA binding / telomeric D-loop binding / regulation of growth rate / telomere maintenance via semi-conservative replication / DNA geometric change ...positive regulation of hydrolase activity / 3'-flap-structured DNA binding / positive regulation of strand invasion / forked DNA-dependent helicase activity / telomeric G-quadruplex DNA binding / 8-hydroxy-2'-deoxyguanosine DNA binding / telomeric D-loop binding / regulation of growth rate / telomere maintenance via semi-conservative replication / DNA geometric change / Y-form DNA binding / telomeric D-loop disassembly / t-circle formation / four-way junction helicase activity / G-quadruplex DNA binding / bubble DNA binding / MutLalpha complex binding / Impaired BRCA2 binding to PALB2 / protein localization to nucleolus / Processive synthesis on the C-strand of the telomere / response to UV-C / Removal of the Flap Intermediate from the C-strand / exonuclease activity / Homologous DNA Pairing and Strand Exchange / Defective homologous recombination repair (HRR) due to BRCA1 loss of function / Defective HDR through Homologous Recombination Repair (HRR) due to PALB2 loss of BRCA1 binding function / Defective HDR through Homologous Recombination Repair (HRR) due to PALB2 loss of BRCA2/RAD51/RAD51C binding function / Resolution of D-loop Structures through Synthesis-Dependent Strand Annealing (SDSA) / Resolution of D-loop Structures through Holliday Junction Intermediates / HDR through Single Strand Annealing (SSA) / DNA metabolic process / DNA synthesis involved in DNA repair / 3'-5' DNA helicase activity / Impaired BRCA2 binding to RAD51 / DNA 3'-5' helicase / replication fork processing / Presynaptic phase of homologous DNA pairing and strand exchange / replicative senescence / mismatch repair / SUMOylation of DNA damage response and repair proteins / four-way junction DNA binding / 3'-5' exonuclease activity / DNA helicase activity / telomere maintenance / cellular response to starvation / replication fork / determination of adult lifespan / cellular response to gamma radiation / double-strand break repair via homologous recombination / G2/M DNA damage checkpoint / base-excision repair / HDR through Homologous Recombination (HRR) / cellular senescence / double-strand break repair / manganese ion binding / chromosome / Processing of DNA double-strand break ends / response to oxidative stress / Regulation of TP53 Activity through Phosphorylation / Hydrolases; Acting on ester bonds / DNA replication / chromosome, telomeric region / nuclear speck / DNA damage response / centrosome / protein-containing complex binding / nucleolus / magnesium ion binding / protein homodimerization activity / ATP hydrolysis activity / DNA binding / nucleoplasm / ATP binding / nucleus / cytoplasm
Similarity search - Function
Helicase Helix-turn-helix domain / Helix-turn-helix domain / RQC domain / RQC / RQC domain / Helicase and RNase D C-terminal / ATP-dependent DNA helicase RecQ, zinc-binding domain / RecQ zinc-binding / HRDC domain / HRDC domain ...Helicase Helix-turn-helix domain / Helix-turn-helix domain / RQC domain / RQC / RQC domain / Helicase and RNase D C-terminal / ATP-dependent DNA helicase RecQ, zinc-binding domain / RecQ zinc-binding / HRDC domain / HRDC domain / DNA helicase, ATP-dependent, RecQ type / HRDC domain profile. / HRDC domain superfamily / 3'-5' exonuclease / 3'-5' exonuclease / 3'-5' exonuclease domain / HRDC-like superfamily / DEAD/DEAH box helicase domain / DEAD/DEAH box helicase / Helicase conserved C-terminal domain / helicase superfamily c-terminal domain / Superfamilies 1 and 2 helicase C-terminal domain profile. / Superfamilies 1 and 2 helicase ATP-binding type-1 domain profile. / DEAD-like helicases superfamily / Helicase, C-terminal / Helicase superfamily 1/2, ATP-binding domain / Ribonuclease H superfamily / Ribonuclease H-like superfamily / Winged helix DNA-binding domain superfamily / Winged helix-like DNA-binding domain superfamily / P-loop containing nucleoside triphosphate hydrolase
Similarity search - Domain/homology
: / Bifunctional 3'-5' exonuclease/ATP-dependent helicase WRN
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.579 Å
AuthorsPalte, R.L. / Koglin, M. / Maskos, K. / Tauchert, M.
Funding support1items
OrganizationGrant numberCountry
Not funded
CitationJournal: Nat Commun / Year: 2026
Title: WRN structural flexibility showcased through fragment-based lead discovery of inhibitors.
Authors: Palte, R.L. / Mandal, M. / Sikorska, J. / Villafania, A.B. / Rickard, M.M. / Bauer, R.J. / Buevich, A.V. / Chai, X. / He, J. / Hussain, Z. / Koglin, M. / MacDonald, H.B. / Mansueto, M.S. / ...Authors: Palte, R.L. / Mandal, M. / Sikorska, J. / Villafania, A.B. / Rickard, M.M. / Bauer, R.J. / Buevich, A.V. / Chai, X. / He, J. / Hussain, Z. / Koglin, M. / MacDonald, H.B. / Mansueto, M.S. / Maskos, K. / Methot, J.L. / Robustelli, J. / Soriano, A. / Tauchert, M.J. / Tyagarajan, S. / Zhang, M. / Klein, D.J. / Hicks, J.D. / McLaren, D.G. / Gabelli, S.B. / Wyss, D.F.
History
DepositionDec 16, 2024Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jan 14, 2026Provider: repository / Type: Initial release
Revision 1.1Jan 21, 2026Group: Database references / Category: citation / citation_author
Item: _citation.journal_volume / _citation.page_first ..._citation.journal_volume / _citation.page_first / _citation.page_last / _citation_author.identifier_ORCID

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Bifunctional 3'-5' exonuclease/ATP-dependent helicase WRN
hetero molecules


Theoretical massNumber of molelcules
Total (without water)51,0338
Polymers50,4811
Non-polymers5527
Water6,179343
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: gel filtration
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area880 Å2
ΔGint5 kcal/mol
Surface area20280 Å2
MethodPISA
Unit cell
Length a, b, c (Å)58.076, 58.500, 130.864
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number19
Space group name H-MP212121

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Components

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Protein , 1 types, 1 molecules A

#1: Protein Bifunctional 3'-5' exonuclease/ATP-dependent helicase WRN / DNA helicase / RecQ-like type 3 / RecQ protein-like 2 / Werner syndrome protein


Mass: 50480.906 Da / Num. of mol.: 1 / Fragment: UNP residues 500-942
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: WRN, RECQ3, RECQL2 / Production host: Spodoptera frugiperda (fall armyworm)
References: UniProt: Q14191, Hydrolases; Acting on ester bonds, DNA 3'-5' helicase

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Non-polymers , 5 types, 350 molecules

#2: Chemical ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Zn
#3: Chemical ChemComp-A1BL1 / N-[4-(trifluoromethyl)phenyl]acetamide


Mass: 203.161 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C9H8F3NO / Feature type: SUBJECT OF INVESTIGATION
#4: Chemical
ChemComp-EDO / 1,2-ETHANEDIOL / ETHYLENE GLYCOL


Mass: 62.068 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: C2H6O2
#5: Chemical ChemComp-CL / CHLORIDE ION


Mass: 35.453 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Cl
#6: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 343 / Source method: isolated from a natural source / Formula: H2O

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Details

Has ligand of interestY
Has protein modificationN

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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: 2.2 Å3/Da / Density % sol: 44.14 %
Crystal growTemperature: 277 K / Method: vapor diffusion, hanging drop / Details: 20% v/v PEG6000, 0.1 M HEPES, pH 6.25-6.5

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Data collection

DiffractionMean temperature: 95 K / Serial crystal experiment: N
Diffraction sourceSource: SYNCHROTRON / Site: SLS / Beamline: X10SA / Wavelength: 1 Å
DetectorType: DECTRIS EIGER2 S 16M / Detector: PIXEL / Date: Jun 22, 2022
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1 Å / Relative weight: 1
ReflectionResolution: 1.579→53.46 Å / Num. obs: 61984 / % possible obs: 100 % / Redundancy: 8.2 % / CC1/2: 0.999 / Rsym value: 0.062 / Net I/σ(I): 15.1
Reflection shellResolution: 1.58→1.61 Å / Num. unique obs: 3069 / CC1/2: 0.576

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Processing

Software
NameVersionClassification
BUSTER2.11.8 (10-JUL-2024)refinement
autoPROCdata reduction
XDS(VERSION Jan 31data reduction
autoPROC(Version 1.1.7)data scaling
Aimlessdata scaling
RefinementMethod to determine structure: MOLECULAR REPLACEMENT / Resolution: 1.579→22.41 Å / Cor.coef. Fo:Fc: 0.958 / Cor.coef. Fo:Fc free: 0.947 / SU R Cruickshank DPI: 0.096 / Cross valid method: THROUGHOUT / σ(F): 0 / SU R Blow DPI: 0.101 / SU Rfree Blow DPI: 0.099 / SU Rfree Cruickshank DPI: 0.096
RfactorNum. reflection% reflectionSelection details
Rfree0.2431 3821 6.17 %RANDOM
Rwork0.2115 ---
obs0.2135 61954 99.9 %-
Displacement parametersBiso mean: 34.26 Å2
Baniso -1Baniso -2Baniso -3
1-1.9272 Å20 Å20 Å2
2--0.2348 Å20 Å2
3----2.162 Å2
Refine analyzeLuzzati coordinate error obs: 0.23 Å
Refinement stepCycle: LAST / Resolution: 1.579→22.41 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3333 0 32 343 3708
Refine LS restraints
Refine-IDTypeDev idealNumberRestraint functionWeight
X-RAY DIFFRACTIONt_bond_d0.013634HARMONIC2
X-RAY DIFFRACTIONt_angle_deg1.024919HARMONIC2
X-RAY DIFFRACTIONt_dihedral_angle_d1311SINUSOIDAL2
X-RAY DIFFRACTIONt_incorr_chiral_ct
X-RAY DIFFRACTIONt_pseud_angle
X-RAY DIFFRACTIONt_trig_c_planes
X-RAY DIFFRACTIONt_gen_planes622HARMONIC5
X-RAY DIFFRACTIONt_it3634HARMONIC10
X-RAY DIFFRACTIONt_nbd
X-RAY DIFFRACTIONt_omega_torsion3.83
X-RAY DIFFRACTIONt_other_torsion14.47
X-RAY DIFFRACTIONt_improper_torsion
X-RAY DIFFRACTIONt_chiral_improper_torsion466SEMIHARMONIC5
X-RAY DIFFRACTIONt_sum_occupancies
X-RAY DIFFRACTIONt_utility_distance
X-RAY DIFFRACTIONt_utility_angle
X-RAY DIFFRACTIONt_utility_torsion
X-RAY DIFFRACTIONt_ideal_dist_contact3592SEMIHARMONIC4
LS refinement shellResolution: 1.58→1.59 Å / Total num. of bins used: 51
RfactorNum. reflection% reflection
Rfree0.3375 -5.32 %
Rwork0.2929 1174 -
all0.2952 1240 -
obs--97.68 %

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