+Open data
-Basic information
Entry | Database: PDB / ID: 6vaa | ||||||
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Title | Structure of the Fanconi Anemia ID complex bound to ICL DNA | ||||||
Components |
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Keywords | DNA BINDING PROTEIN/DNA / DNA repair / DNA BINDING PROTEIN / DNA BINDING PROTEIN-DNA complex | ||||||
Function / homology | Function and homology information regulation of CD40 signaling pathway / regulation of regulatory T cell differentiation / homologous chromosome pairing at meiosis / double-strand break repair involved in meiotic recombination / gamete generation / neuronal stem cell population maintenance / brain morphogenesis / DNA repair complex / mitotic intra-S DNA damage checkpoint signaling / interstrand cross-link repair ...regulation of CD40 signaling pathway / regulation of regulatory T cell differentiation / homologous chromosome pairing at meiosis / double-strand break repair involved in meiotic recombination / gamete generation / neuronal stem cell population maintenance / brain morphogenesis / DNA repair complex / mitotic intra-S DNA damage checkpoint signaling / interstrand cross-link repair / DNA polymerase binding / condensed chromosome / positive regulation of protein ubiquitination / response to gamma radiation / TP53 Regulates Transcription of DNA Repair Genes / Fanconi Anemia Pathway / cellular response to oxidative stress / regulation of inflammatory response / nuclear body / DNA repair / chromatin / nucleolus / DNA binding / nucleoplasm / membrane / nucleus / cytosol / cytoplasm Similarity search - Function | ||||||
Biological species | Homo sapiens (human) | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.4 Å | ||||||
Authors | Pavletich, N.P. | ||||||
Funding support | United States, 1items
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Citation | Journal: Nature / Year: 2020 Title: DNA clamp function of the monoubiquitinated Fanconi anaemia ID complex. Authors: Renjing Wang / Shengliu Wang / Ankita Dhar / Christopher Peralta / Nikola P Pavletich / Abstract: The ID complex, involving the proteins FANCI and FANCD2, is required for the repair of DNA interstrand crosslinks (ICL) and related lesions. These proteins are mutated in Fanconi anaemia, a disease ...The ID complex, involving the proteins FANCI and FANCD2, is required for the repair of DNA interstrand crosslinks (ICL) and related lesions. These proteins are mutated in Fanconi anaemia, a disease in which patients are predisposed to cancer. The Fanconi anaemia pathway of ICL repair is activated when a replication fork stalls at an ICL; this triggers monoubiquitination of the ID complex, in which one ubiquitin molecule is conjugated to each of FANCI and FANCD2. Monoubiquitination of ID is essential for ICL repair by excision, translesion synthesis and homologous recombination; however, its function remains unknown. Here we report a cryo-electron microscopy structure of the monoubiquitinated human ID complex bound to DNA, and reveal that it forms a closed ring that encircles the DNA. By comparison with the structure of the non-ubiquitinated ID complex bound to ICL DNA-which we also report here-we show that monoubiquitination triggers a complete rearrangement of the open, trough-like ID structure through the ubiquitin of one protomer binding to the other protomer in a reciprocal fashion. These structures-together with biochemical data-indicate that the monoubiquitinated ID complex loses its preference for ICL and related branched DNA structures, and becomes a sliding DNA clamp that can coordinate the subsequent repair reactions. Our findings also reveal how monoubiquitination in general can induce an alternative protein structure with a new function. | ||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | Molecule: MolmilJmol/JSmol |
-Downloads & links
-Download
PDBx/mmCIF format | 6vaa.cif.gz | 2 MB | Display | PDBx/mmCIF format |
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PDB format | pdb6vaa.ent.gz | 1.6 MB | Display | PDB format |
PDBx/mmJSON format | 6vaa.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 6vaa_validation.pdf.gz | 926.5 KB | Display | wwPDB validaton report |
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Full document | 6vaa_full_validation.pdf.gz | 946.3 KB | Display | |
Data in XML | 6vaa_validation.xml.gz | 60.4 KB | Display | |
Data in CIF | 6vaa_validation.cif.gz | 94.7 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/va/6vaa ftp://data.pdbj.org/pub/pdb/validation_reports/va/6vaa | HTTPS FTP |
-Related structure data
Related structure data | 21134MC 6vadC 6vaeC 6vafC M: map data used to model this data C: citing same article (ref.) |
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Similar structure data |
-Links
-Assembly
Deposited unit |
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1 |
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-Components
-Protein , 2 types, 2 molecules AB
#1: Protein | Mass: 149566.047 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: FANCI / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: B7ZMF2, UniProt: Q9NVI1*PLUS |
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#2: Protein | Mass: 164314.516 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: FANCD2, FACD / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: Q9BXW9 |
-DNA chain , 4 types, 4 molecules WXYZ
#3: DNA chain | Mass: 8411.627 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Homo sapiens (human) |
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#4: DNA chain | Mass: 5430.513 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Homo sapiens (human) |
#5: DNA chain | Mass: 4653.145 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Homo sapiens (human) |
#6: DNA chain | Mass: 4822.127 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Homo sapiens (human) |
-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-Sample preparation
Component | Name: FANCI-FANCD2-DNA complex / Type: COMPLEX / Entity ID: all / Source: MULTIPLE SOURCES |
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Molecular weight | Units: MEGADALTONS / Experimental value: NO |
Source (natural) | Organism: Homo sapiens (human) |
Source (recombinant) | Organism: Spodoptera frugiperda (fall armyworm) |
Buffer solution | pH: 8 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Specimen support | Details: unspecified |
Vitrification | Cryogen name: ETHANE |
-Electron microscopy imaging
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
Electron lens | Mode: BRIGHT FIELD |
Image recording | Electron dose: 51 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
-Processing
Software | Name: REFMAC / Version: 5.8.0238 / Classification: refinement | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Symmetry | Point symmetry: C1 (asymmetric) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
3D reconstruction | Resolution: 3.4 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 231943 / Symmetry type: POINT | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Atomic model building | B value: 169 / Protocol: OTHER / Space: RECIPROCAL / Target criteria: Rfactor | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Atomic model building | PDB-ID: 3S4W Accession code: 3S4W / Source name: PDB / Type: experimental model | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refinement | Resolution: 3.4→3.4 Å / Cor.coef. Fo:Fc: 0.847 / SU B: 55.551 / SU ML: 0.389 / ESU R: 0.646 Stereochemistry target values: MAXIMUM LIKELIHOOD WITH PHASES Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
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Solvent computation | Ion probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.1 Å / Solvent model: MASK | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | Biso mean: 174.481 Å2
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Refinement step | Cycle: 1 / Total: 20055 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refine LS restraints |
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