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- PDB-8rl6: DNA helicase RECQL5 in complex with homo Di-Gluebody G5-006 - REC... -

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Basic information

Entry
Database: PDB / ID: 8rl6
TitleDNA helicase RECQL5 in complex with homo Di-Gluebody G5-006 - RECQL5 local refinement
ComponentsATP-dependent DNA helicase Q5
KeywordsHYDROLASE / DNA helicase / Di-Gluebody
Function / homology
Function and homology information


mitotic DNA-templated DNA replication / chromosome separation / cellular response to camptothecin / replication-born double-strand break repair via sister chromatid exchange / transcription preinitiation complex / 3'-5' DNA helicase activity / DNA 3'-5' helicase / DNA metabolic process / RNA polymerase II complex binding / negative regulation of transcription elongation by RNA polymerase II ...mitotic DNA-templated DNA replication / chromosome separation / cellular response to camptothecin / replication-born double-strand break repair via sister chromatid exchange / transcription preinitiation complex / 3'-5' DNA helicase activity / DNA 3'-5' helicase / DNA metabolic process / RNA polymerase II complex binding / negative regulation of transcription elongation by RNA polymerase II / negative regulation of double-strand break repair via homologous recombination / DNA helicase activity / replication fork / isomerase activity / helicase activity / double-strand break repair via homologous recombination / cellular response to xenobiotic stimulus / mitotic cell cycle / chromosome / forked DNA-dependent helicase activity / single-stranded 3'-5' DNA helicase activity / four-way junction helicase activity / double-stranded DNA helicase activity / DNA replication / cell division / DNA repair / ATP hydrolysis activity / DNA binding / nucleoplasm / ATP binding / metal ion binding / identical protein binding / nucleus / cytosol / cytoplasm
Similarity search - Function
RecQ helicase-like 5 / RecQ helicase protein-like 5 (RecQ5) / Set2 Rpb1 interacting domain / SRI (Set2 Rpb1 interacting) domain / ATP-dependent DNA helicase RecQ, zinc-binding domain / RecQ zinc-binding / DNA helicase, ATP-dependent, RecQ type / DNA/RNA helicase, ATP-dependent, DEAH-box type, conserved site / DEAH-box subfamily ATP-dependent helicases signature. / DEAD/DEAH box helicase domain ...RecQ helicase-like 5 / RecQ helicase protein-like 5 (RecQ5) / Set2 Rpb1 interacting domain / SRI (Set2 Rpb1 interacting) domain / ATP-dependent DNA helicase RecQ, zinc-binding domain / RecQ zinc-binding / DNA helicase, ATP-dependent, RecQ type / DNA/RNA helicase, ATP-dependent, DEAH-box type, conserved site / DEAH-box subfamily ATP-dependent helicases signature. / 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 / P-loop containing nucleoside triphosphate hydrolase
Similarity search - Domain/homology
ATP-dependent DNA helicase Q5
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.18 Å
AuthorsYi, G. / Ye, M. / Mamalis, D. / Sauer, D.B. / von Delft, F. / Davis, B.G. / Gilbert, R.J.C.
Funding support United Kingdom, 1items
OrganizationGrant numberCountry
Other private United Kingdom
CitationJournal: To Be Published
Title: Di-Gluebodies: Rigid modular nanobody protein assemblies enabling simultaneous determination of high-resolution cryo-EM structures
Authors: Yi, G. / Mamalis, D. / Ye, M. / Carrique, L. / Fairhead, M. / Li, H. / Duerr, K. / Zhang, P. / Sauer, D.B. / von Delft, F. / Davis, B.G. / Gilbert, R.J.C.
History
DepositionJan 2, 2024Deposition site: PDBE / Processing site: PDBE
Revision 1.0Jan 15, 2025Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: ATP-dependent DNA helicase Q5
hetero molecules


Theoretical massNumber of molelcules
Total (without water)49,2692
Polymers49,2041
Non-polymers651
Water00
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1

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Components

#1: Protein ATP-dependent DNA helicase Q5 / DNA helicase / RecQ-like type 5 / RecQ5 / RecQ protein-like 5


Mass: 49203.820 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: RECQL5, RECQ5 / Production host: Escherichia coli (E. coli) / References: UniProt: O94762, DNA helicase
#2: Chemical ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Zn
Has ligand of interestN
Has protein modificationY

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: Local refinement of the RECQL5 part of RECQL5 homodimer assembled by G5-006 homo Di-Gluebody
Type: COMPLEX / Entity ID: #1 / Source: RECOMBINANT
Molecular weightValue: 0.126 MDa / Experimental value: NO
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Escherichia coli (E. coli)
Buffer solutionpH: 7.5
Buffer component
IDConc.NameFormulaBuffer-ID
120 mMHEPESC8H18N2O4S1
2150 mMsodium chlorideNaCl1
SpecimenConc.: 0.8 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportGrid material: GOLD / Grid mesh size: 200 divisions/in. / Grid type: C-flat-2/1
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 3000 nm / Nominal defocus min: 1500 nm / Cs: 2.7 mm
Image recordingElectron dose: 60 e/Å2 / Film or detector model: FEI FALCON IV (4k x 4k) / Num. of real images: 9247

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Processing

EM software
IDNameVersionCategory
1cryoSPARC4particle selection
2EPUimage acquisition
4cryoSPARC4CTF correction
7UCSF Chimeramodel fitting
9PHENIXmodel refinement
10Cootmodel refinement
11cryoSPARC4initial Euler assignment
12cryoSPARC4final Euler assignment
13cryoSPARC4classification
14cryoSPARC43D reconstruction
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Particle selectionNum. of particles selected: 610675
SymmetryPoint symmetry: C1 (asymmetric)
3D reconstructionResolution: 3.18 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 194417 / Num. of class averages: 4 / Symmetry type: POINT
Atomic model buildingB value: 157.2 / Space: REAL
Atomic model buildingPDB-ID: 7ZMV

7zmv


Accession code: 7ZMV / Source name: PDB / Type: experimental model
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.0023343
ELECTRON MICROSCOPYf_angle_d0.4834534
ELECTRON MICROSCOPYf_dihedral_angle_d3.792469
ELECTRON MICROSCOPYf_chiral_restr0.037525
ELECTRON MICROSCOPYf_plane_restr0.004581

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