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- PDB-8off: Structure of BARD1 ARD-BRCTs in complex with H2AKc15ub nucleosome... -
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Open data
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Basic information
Entry | Database: PDB / ID: 8off | |||||||||||||||
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Title | Structure of BARD1 ARD-BRCTs in complex with H2AKc15ub nucleosomes (Map1) | |||||||||||||||
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![]() | DNA BINDING PROTEIN / BRCA1-BARD1 / chromatin recognition / nucleosomes / ubiquitin | |||||||||||||||
Function / homology | ![]() BRCA1-BARD1 complex / BRCA1-C complex / BRCA1-B complex / BRCA1-A complex / protein K6-linked ubiquitination / regulation of phosphorylation / negative regulation of protein export from nucleus / negative regulation of megakaryocyte differentiation / protein localization to CENP-A containing chromatin / Chromatin modifying enzymes ...BRCA1-BARD1 complex / BRCA1-C complex / BRCA1-B complex / BRCA1-A complex / protein K6-linked ubiquitination / regulation of phosphorylation / negative regulation of protein export from nucleus / negative regulation of megakaryocyte differentiation / protein localization to CENP-A containing chromatin / Chromatin modifying enzymes / Replacement of protamines by nucleosomes in the male pronucleus / CENP-A containing nucleosome / Packaging Of Telomere Ends / Recognition and association of DNA glycosylase with site containing an affected purine / Cleavage of the damaged purine / Maturation of protein E / Maturation of protein E / ER Quality Control Compartment (ERQC) / nucleosomal DNA binding / Deposition of new CENPA-containing nucleosomes at the centromere / Myoclonic epilepsy of Lafora / FLT3 signaling by CBL mutants / Prevention of phagosomal-lysosomal fusion / IRAK2 mediated activation of TAK1 complex / Regulation of TBK1, IKKε (IKBKE)-mediated activation of IRF3, IRF7 / Alpha-protein kinase 1 signaling pathway / Glycogen synthesis / IRAK1 recruits IKK complex / IRAK1 recruits IKK complex upon TLR7/8 or 9 stimulation / Regulation of TBK1, IKKε-mediated activation of IRF3, IRF7 upon TLR3 ligation / Membrane binding and targetting of GAG proteins / Recognition and association of DNA glycosylase with site containing an affected pyrimidine / Cleavage of the damaged pyrimidine / Endosomal Sorting Complex Required For Transport (ESCRT) / IRAK2 mediated activation of TAK1 complex upon TLR7/8 or 9 stimulation / PTK6 Regulates RTKs and Their Effectors AKT1 and DOK1 / Negative regulation of FLT3 / Constitutive Signaling by NOTCH1 HD Domain Mutants / Regulation of FZD by ubiquitination / TICAM1,TRAF6-dependent induction of TAK1 complex / TICAM1-dependent activation of IRF3/IRF7 / NOTCH2 Activation and Transmission of Signal to the Nucleus / Inhibition of DNA recombination at telomere / APC/C:Cdc20 mediated degradation of Cyclin B / Meiotic synapsis / p75NTR recruits signalling complexes / epigenetic regulation of gene expression / Downregulation of ERBB4 signaling / telomere organization / APC-Cdc20 mediated degradation of Nek2A / TRAF6-mediated induction of TAK1 complex within TLR4 complex / TRAF6 mediated IRF7 activation in TLR7/8 or 9 signaling / PINK1-PRKN Mediated Mitophagy / Pexophagy / Regulation of innate immune responses to cytosolic DNA / Regulation of pyruvate metabolism / InlA-mediated entry of Listeria monocytogenes into host cells / VLDLR internalisation and degradation / Downregulation of ERBB2:ERBB3 signaling / RNA Polymerase I Promoter Opening / Interleukin-7 signaling / NF-kB is activated and signals survival / Regulation of PTEN localization / NRIF signals cell death from the nucleus / Assembly of the ORC complex at the origin of replication / Regulation of BACH1 activity / Activated NOTCH1 Transmits Signal to the Nucleus / SUMOylation of chromatin organization proteins / Synthesis of active ubiquitin: roles of E1 and E2 enzymes / Translesion synthesis by REV1 / MAP3K8 (TPL2)-dependent MAPK1/3 activation / Translesion synthesis by POLK / TICAM1, RIP1-mediated IKK complex recruitment / Downregulation of TGF-beta receptor signaling / DNA methylation / Activation of IRF3, IRF7 mediated by TBK1, IKKε (IKBKE) / Translesion synthesis by POLI / Josephin domain DUBs / Gap-filling DNA repair synthesis and ligation in GG-NER / Regulation of activated PAK-2p34 by proteasome mediated degradation / InlB-mediated entry of Listeria monocytogenes into host cell / Condensation of Prophase Chromosomes / IKK complex recruitment mediated by RIP1 / JNK (c-Jun kinases) phosphorylation and activation mediated by activated human TAK1 / SIRT1 negatively regulates rRNA expression / ERCC6 (CSB) and EHMT2 (G9a) positively regulate rRNA expression / Chromatin modifications during the maternal to zygotic transition (MZT) / HCMV Late Events / TGF-beta receptor signaling in EMT (epithelial to mesenchymal transition) / innate immune response in mucosa / N-glycan trimming in the ER and Calnexin/Calreticulin cycle / PRC2 methylates histones and DNA / TNFR1-induced NF-kappa-B signaling pathway / Autodegradation of Cdh1 by Cdh1:APC/C / APC/C:Cdc20 mediated degradation of Securin / Asymmetric localization of PCP proteins / TCF dependent signaling in response to WNT / Defective pyroptosis / SCF-beta-TrCP mediated degradation of Emi1 / NIK-->noncanonical NF-kB signaling Similarity search - Function | |||||||||||||||
Biological species | ![]() ![]() ![]() | |||||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.4 Å | |||||||||||||||
![]() | Foglizzo, M. / Burdett, H. / Wilson, M.D. / Zeqiraj, E. | |||||||||||||||
Funding support | ![]()
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![]() | ![]() Title: BRCA1-BARD1 combines multiple chromatin recognition modules to bridge nascent nucleosomes. Authors: Hayden Burdett / Martina Foglizzo / Laura J Musgrove / Dhananjay Kumar / Gillian Clifford / Lisa J Campbell / George R Heath / Elton Zeqiraj / Marcus D Wilson / ![]() Abstract: Chromatin association of the BRCA1-BARD1 heterodimer is critical to promote homologous recombination repair of DNA double-strand breaks (DSBs) in S/G2. How the BRCA1-BARD1 complex interacts with ...Chromatin association of the BRCA1-BARD1 heterodimer is critical to promote homologous recombination repair of DNA double-strand breaks (DSBs) in S/G2. How the BRCA1-BARD1 complex interacts with chromatin that contains both damage induced histone H2A ubiquitin and inhibitory H4K20 methylation is not fully understood. We characterised BRCA1-BARD1 binding and enzymatic activity to an array of mono- and di-nucleosome substrates using biochemical, structural and single molecule imaging approaches. We found that the BRCA1-BARD1 complex preferentially interacts and modifies di-nucleosomes over mono-nucleosomes, allowing integration of H2A Lys-15 ubiquitylation signals with other chromatin modifications and features. Using high speed- atomic force microscopy (HS-AFM) to monitor how the BRCA1-BARD1 complex recognises chromatin in real time, we saw a highly dynamic complex that bridges two nucleosomes and associates with the DNA linker region. Bridging is aided by multivalent cross-nucleosome interactions that enhance BRCA1-BARD1 E3 ubiquitin ligase catalytic activity. Multivalent interactions across nucleosomes explain how BRCA1-BARD1 can recognise chromatin that retains partial di-methylation at H4 Lys-20 (H4K20me2), a parental histone mark that blocks BRCA1-BARD1 interaction with nucleosomes, to promote its enzymatic and DNA repair activities. | |||||||||||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 365 KB | Display | ![]() |
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PDB format | ![]() | Display | ![]() | |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
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-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 16859MC M: map data used to model this data C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
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Assembly
Deposited unit | ![]()
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Components
-DNA chain , 1 types, 2 molecules JI
#1: DNA chain | Mass: 108097.586 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
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-Protein , 6 types, 11 molecules CaCbBaBbAaAbDaDbEaEbFa
#2: Protein | Mass: 15366.088 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() Gene: H3C1, H3FA, HIST1H3A, H3C2, H3FL, HIST1H3B, H3C3, H3FC HIST1H3C, H3C4, H3FB, HIST1H3D, H3C6, H3FD, HIST1H3E, H3C7, H3FI, HIST1H3F, H3C8, H3FH, HIST1H3G, H3C10, H3FK, HIST1H3H, H3C11, H3FF, ...Gene: H3C1, H3FA, HIST1H3A, H3C2, H3FL, HIST1H3B, H3C3, H3FC HIST1H3C, H3C4, H3FB, HIST1H3D, H3C6, H3FD, HIST1H3E, H3C7, H3FI, HIST1H3F, H3C8, H3FH, HIST1H3G, H3C10, H3FK, HIST1H3H, H3C11, H3FF, HIST1H3I, H3C12, H3FJ, HIST1H3J Production host: ![]() ![]() #3: Protein | Mass: 13937.213 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() Gene: HIST1H2BC, H2BFL, HIST1H2BE, H2BFH, HIST1H2BF, H2BFG, HIST1H2BG, H2BFA, HIST1H2BI, H2BFK Production host: ![]() ![]() #4: Protein | Mass: 14121.537 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() Gene: H2AC11, H2AFP, HIST1H2AG, H2AC13, H2AFC, HIST1H2AI, H2AC15, H2AFD, HIST1H2AK, H2AC16, H2AFI, HIST1H2AL, H2AC17, H2AFN, HIST1H2AM Production host: ![]() ![]() #5: Protein | Mass: 11394.426 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() Gene: HIST1H4A, H4/A, H4FA, HIST1H4B, H4/I, H4FI, HIST1H4C, H4/G, H4FG, HIST1H4D, H4/B, H4FB, HIST1H4E, H4/J, H4FJ, HIST1H4F, H4/C, H4FC, HIST1H4H, H4/H, H4FH, HIST1H4I, H4/M, H4FM, HIST1H4J, H4/E, ...Gene: HIST1H4A, H4/A, H4FA, HIST1H4B, H4/I, H4FI, HIST1H4C, H4/G, H4FG, HIST1H4D, H4/B, H4FB, HIST1H4E, H4/J, H4FJ, HIST1H4F, H4/C, H4FC, HIST1H4H, H4/H, H4FH, HIST1H4I, H4/M, H4FM, HIST1H4J, H4/E, H4FE, HIST1H4K, H4/D, H4FD, HIST1H4L, H4/K, H4FK, HIST2H4A, H4/N, H4F2, H4FN, HIST2H4, HIST2H4B, H4/O, H4FO, HIST4H4 Production host: ![]() ![]() #6: Protein | Mass: 85897.531 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() #7: Protein | | Mass: 8576.831 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
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-Details
Has ligand of interest | N |
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-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
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Molecular weight | Value: 0.246 MDa / Experimental value: NO | ||||||||||||||||||||||||
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Source (recombinant) |
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Buffer solution | pH: 7.5 / Details: 20 mM HEPES pH 7.5, 50 mM NaCl and 1 mM DTT | ||||||||||||||||||||||||
Buffer component |
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Specimen | Conc.: 1 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES Details: Purified cat BRCA1dExon11-FL BARD1 (at 3 uM) was incubated with H2AKc15ub mono-nucleosomes (at 1.5 uM) for 1 h on ice before cryo-EM grids preparation | ||||||||||||||||||||||||
Specimen support | Details: Quantifoil R3.5/1 200-mesh grids (Quantifoil Micro Tools GmbH) were glow-discharged for 30 s at 40 mA using a GloQube (Quorum) glow discharge unit Grid material: COPPER / Grid mesh size: 200 divisions/in. / Grid type: Quantifoil R3.5/1 | ||||||||||||||||||||||||
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 277 K / Details: blot force = 0 N blot time = 8 s |
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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: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 96000 X / Nominal defocus max: 3100 nm / Nominal defocus min: 1700 nm / Cs: 2.7 mm / C2 aperture diameter: 70 µm / Alignment procedure: COMA FREE |
Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
Image recording | Average exposure time: 5 sec. / Electron dose: 36.37 e/Å2 / Film or detector model: FEI FALCON IV (4k x 4k) / Num. of grids imaged: 1 / Num. of real images: 16015 |
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Processing
EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||
Particle selection | Num. of particles selected: 7204662 | ||||||||||||||||||||||||||||||||||||
Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||||||||||||||||||||||||||
3D reconstruction | Resolution: 3.4 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 359954 / Num. of class averages: 3 / Symmetry type: POINT | ||||||||||||||||||||||||||||||||||||
Atomic model building | Space: REAL | ||||||||||||||||||||||||||||||||||||
Refinement | Cross valid method: NONE Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2 | ||||||||||||||||||||||||||||||||||||
Displacement parameters | Biso mean: 72.1 Å2 | ||||||||||||||||||||||||||||||||||||
Refine LS restraints |
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