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- PDB-8x7k: Cryo-EM structures of RNF168/UbcH5c-Ub in complex with H2AK13Ub n... -

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Entry
Database: PDB / ID: 8x7k
TitleCryo-EM structures of RNF168/UbcH5c-Ub in complex with H2AK13Ub nucleosomes determined by activity-based chemical trapping strategy (adjacent H2AK13/15 dual-monoubiquitination)
Components
  • (DNA (143-MER)) x 2
  • (Histone H2A type 1- ...) x 2
  • E3 ubiquitin-protein ligase RNF168
  • Histone H2B type 1-K
  • Histone H3.2
  • Histone H4
  • Ubiquitin-conjugating enzyme E2 D3
KeywordsNUCLEAR PROTEIN/DNA / RNF168 / nucleosome / H2AK13/15 ubiquitination / NUCLEAR PROTEIN / NUCLEAR PROTEIN-DNA complex
Function / homology
Function and homology information


histone H2AK15 ubiquitin ligase activity / histone ubiquitin ligase activity / protein K6-linked ubiquitination / Signaling by BMP / (E3-independent) E2 ubiquitin-conjugating enzyme / double-strand break repair via classical nonhomologous end joining / isotype switching / protein K11-linked ubiquitination / positive regulation of protein targeting to mitochondrion / K63-linked polyubiquitin modification-dependent protein binding ...histone H2AK15 ubiquitin ligase activity / histone ubiquitin ligase activity / protein K6-linked ubiquitination / Signaling by BMP / (E3-independent) E2 ubiquitin-conjugating enzyme / double-strand break repair via classical nonhomologous end joining / isotype switching / protein K11-linked ubiquitination / positive regulation of protein targeting to mitochondrion / K63-linked polyubiquitin modification-dependent protein binding / E2 ubiquitin-conjugating enzyme / response to ionizing radiation / DNA repair-dependent chromatin remodeling / ubiquitin conjugating enzyme activity / negative regulation of transcription elongation by RNA polymerase II / protein K63-linked ubiquitination / negative regulation of BMP signaling pathway / protein monoubiquitination / ubiquitin ligase complex / negative regulation of megakaryocyte differentiation / interstrand cross-link repair / protein localization to CENP-A containing chromatin / SUMOylation of DNA damage response and repair proteins / protein K48-linked ubiquitination / Chromatin modifying enzymes / Replacement of protamines by nucleosomes in the male pronucleus / nucleosome binding / CENP-A containing nucleosome / protein autoubiquitination / Packaging Of Telomere Ends / Recognition and association of DNA glycosylase with site containing an affected purine / Cleavage of the damaged purine / TICAM1, RIP1-mediated IKK complex recruitment / IKK complex recruitment mediated by RIP1 / Deposition of new CENPA-containing nucleosomes at the centromere / Recognition and association of DNA glycosylase with site containing an affected pyrimidine / Cleavage of the damaged pyrimidine / PINK1-PRKN Mediated Mitophagy / telomere organization / Interleukin-7 signaling / Inhibition of DNA recombination at telomere / RNA Polymerase I Promoter Opening / Meiotic synapsis / Assembly of the ORC complex at the origin of replication / Negative regulators of DDX58/IFIH1 signaling / SUMOylation of chromatin organization proteins / Regulation of endogenous retroelements by the Human Silencing Hub (HUSH) complex / positive regulation of DNA repair / DNA methylation / Condensation of Prophase Chromosomes / Peroxisomal protein import / Chromatin modifications during the maternal to zygotic transition (MZT) / epigenetic regulation of gene expression / HCMV Late Events / SIRT1 negatively regulates rRNA expression / Downregulation of SMAD2/3:SMAD4 transcriptional activity / ERCC6 (CSB) and EHMT2 (G9a) positively regulate rRNA expression / Regulation of TNFR1 signaling / ubiquitin binding / PRC2 methylates histones and DNA / innate immune response in mucosa / Regulation of endogenous retroelements by KRAB-ZFP proteins / Defective pyroptosis / HDMs demethylate histones / Regulation of endogenous retroelements by Piwi-interacting RNAs (piRNAs) / HDACs deacetylate histones / Inactivation of CSF3 (G-CSF) signaling / RNA Polymerase I Promoter Escape / Nonhomologous End-Joining (NHEJ) / Transcriptional regulation by small RNAs / Oxygen-dependent proline hydroxylation of Hypoxia-inducible Factor Alpha / Formation of the beta-catenin:TCF transactivating complex / RUNX1 regulates genes involved in megakaryocyte differentiation and platelet function / Activated PKN1 stimulates transcription of AR (androgen receptor) regulated genes KLK2 and KLK3 / G2/M DNA damage checkpoint / Metalloprotease DUBs / NoRC negatively regulates rRNA expression / protein modification process / RING-type E3 ubiquitin transferase / DNA Damage/Telomere Stress Induced Senescence / B-WICH complex positively regulates rRNA expression / PKMTs methylate histone lysines / Meiotic recombination / Pre-NOTCH Transcription and Translation / double-strand break repair via nonhomologous end joining / RMTs methylate histone arginines / Activation of anterior HOX genes in hindbrain development during early embryogenesis / Transcriptional regulation of granulopoiesis / UCH proteinases / HCMV Early Events / protein polyubiquitination / ubiquitin-protein transferase activity / antimicrobial humoral immune response mediated by antimicrobial peptide / Antigen processing: Ubiquitination & Proteasome degradation / structural constituent of chromatin / ubiquitin protein ligase activity / antibacterial humoral response / E3 ubiquitin ligases ubiquitinate target proteins / Recruitment and ATM-mediated phosphorylation of repair and signaling proteins at DNA double strand breaks / nucleosome
Similarity search - Function
E3 ubiquitin-protein ligase RNF168 / : / Prokaryotic RING finger family 4 / Ubiquitin-conjugating enzyme, active site / Ubiquitin-conjugating (UBC) active site signature. / Ubiquitin-conjugating enzyme E2 / Ubiquitin-conjugating enzyme / Ubiquitin-conjugating (UBC) core domain profile. / Ubiquitin-conjugating enzyme E2, catalytic domain homologues / Ubiquitin-conjugating enzyme/RWD-like ...E3 ubiquitin-protein ligase RNF168 / : / Prokaryotic RING finger family 4 / Ubiquitin-conjugating enzyme, active site / Ubiquitin-conjugating (UBC) active site signature. / Ubiquitin-conjugating enzyme E2 / Ubiquitin-conjugating enzyme / Ubiquitin-conjugating (UBC) core domain profile. / Ubiquitin-conjugating enzyme E2, catalytic domain homologues / Ubiquitin-conjugating enzyme/RWD-like / Ring finger / : / Histone H2B signature. / Histone H2A conserved site / Histone H2A signature. / Histone H2B / Histone H2B / Histone H2A, C-terminal domain / C-terminus of histone H2A / Histone 2A / Histone H2A / TATA box binding protein associated factor / TATA box binding protein associated factor (TAF), histone-like fold domain / Histone H4, conserved site / Histone H4 signature. / Histone H4 / Histone H4 / CENP-T/Histone H4, histone fold / Centromere kinetochore component CENP-T histone fold / Zinc finger RING-type profile. / Histone H3 signature 1. / Zinc finger, RING-type / Histone H3 signature 2. / Histone H3 / Histone H3/CENP-A / Histone H2A/H2B/H3 / Core histone H2A/H2B/H3/H4 / Histone-fold / Zinc finger, RING/FYVE/PHD-type
Similarity search - Domain/homology
DNA / DNA (> 10) / DNA (> 100) / Histone H2B type 1-K / Histone H2A type 1-B/E / Ubiquitin-conjugating enzyme E2 D3 / Histone H4 / Histone H3.2 / E3 ubiquitin-protein ligase RNF168
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.27 Å
AuthorsAi, H.S. / Tong, Z.B. / Deng, Z.H. / Pan, M. / Liu, L.
Funding support China, 1items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC)22137005, 92253302, 22227810 for L. Liu, and 22277073 for M. Pan China
CitationJournal: Biorxiv / Year: 2024
Title: Capturing Snapshots of Nucleosomal H2A K13/K15 Ubiquitination Mediated by the Monomeric E3 Ligase RNF168
Authors: Ai, H. / Tong, Z. / Deng, Z. / Shi, Q. / Tao, S. / Liang, J. / Sun, M. / Wu, X. / Zheng, Q. / Liang, L. / Li, J.B. / Gao, S. / Tian, C. / Liu, L. / Pan, M.
History
DepositionNov 24, 2023Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Aug 7, 2024Provider: repository / Type: Initial release
Revision 1.0Aug 7, 2024Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
Revision 1.0Aug 7, 2024Data content type: Additional map / Data content type: Additional map / Provider: repository / Type: Initial release
Revision 1.0Aug 7, 2024Data content type: FSC / Data content type: FSC / Provider: repository / Type: Initial release
Revision 1.0Aug 7, 2024Data content type: Half map / Part number: 1 / Data content type: Half map / Provider: repository / Type: Initial release
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Revision 1.0Aug 7, 2024Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Aug 7, 2024Data content type: Mask / Data content type: Mask / Provider: repository / Type: Initial release
Revision 1.0Aug 7, 2024Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release
Revision 1.1Jun 25, 2025Group: Data collection / Structure summary / Category: em_admin / em_software / pdbx_entry_details
Item: _em_admin.last_update / _em_software.name / _pdbx_entry_details.has_protein_modification
Revision 1.1Jun 25, 2025Data content type: EM metadata / Data content type: EM metadata / EM metadata / Group: Data processing / Experimental summary / Data content type: EM metadata / EM metadata / Category: em_admin / em_software / Data content type: EM metadata / EM metadata / Item: _em_admin.last_update / _em_software.name

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Histone H3.2
B: Histone H4
C: Histone H2A type 1-B/E
D: Histone H2B type 1-K
E: Histone H3.2
F: Histone H4
G: Histone H2A type 1-B/E
H: Histone H2B type 1-K
I: DNA (143-MER)
J: DNA (143-MER)
K: Ubiquitin-conjugating enzyme E2 D3
L: E3 ubiquitin-protein ligase RNF168
hetero molecules


Theoretical massNumber of molelcules
Total (without water)203,80714
Polymers203,67612
Non-polymers1312
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

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Protein , 5 types, 8 molecules AEBFDHKL

#1: Protein Histone H3.2 / H3-clustered histone 13 / H3-clustered histone 14 / H3-clustered histone 15 / Histone H3/m / Histone H3/o


Mass: 11401.268 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human)
Gene: H3C15, HIST2H3A, H3C14, H3F2, H3FM, HIST2H3C, H3C13, HIST2H3D
Production host: Escherichia coli (E. coli) / References: UniProt: Q71DI3
#2: Protein Histone H4


Mass: 9352.003 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human)
Gene: H4C1, H4/A, H4FA, HIST1H4A, H4C2, H4/I, H4FI, HIST1H4B, H4C3, H4/G, H4FG, HIST1H4C, H4C4, H4/B, H4FB, HIST1H4D, H4C5, H4/J, H4FJ, HIST1H4E, H4C6, H4/C, H4FC, HIST1H4F, H4C8, H4/H, H4FH, ...Gene: H4C1, H4/A, H4FA, HIST1H4A, H4C2, H4/I, H4FI, HIST1H4B, H4C3, H4/G, H4FG, HIST1H4C, H4C4, H4/B, H4FB, HIST1H4D, H4C5, H4/J, H4FJ, HIST1H4E, H4C6, H4/C, H4FC, HIST1H4F, H4C8, H4/H, H4FH, HIST1H4H, H4C9, H4/M, H4FM, HIST1H4I, H4C11, H4/E, H4FE, HIST1H4J, H4C12, H4/D, H4FD, HIST1H4K, H4C13, H4/K, H4FK, HIST1H4L, H4C14, H4/N, H4F2, H4FN, HIST2H4, HIST2H4A, H4C15, H4/O, H4FO, HIST2H4B, H4C16, H4-16, HIST4H4
Production host: Escherichia coli (E. coli) / References: UniProt: P62805
#4: Protein Histone H2B type 1-K / H2B K / HIRA-interacting protein 1


Mass: 10477.994 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: H2BC12, H2BFT, HIRIP1, HIST1H2BK / Production host: Escherichia coli (E. coli) / References: UniProt: O60814
#8: Protein Ubiquitin-conjugating enzyme E2 D3 / (E3-independent) E2 ubiquitin-conjugating enzyme D3 / E2 ubiquitin-conjugating enzyme D3 / ...(E3-independent) E2 ubiquitin-conjugating enzyme D3 / E2 ubiquitin-conjugating enzyme D3 / Ubiquitin carrier protein D3 / Ubiquitin-conjugating enzyme E2(17)KB 3 / Ubiquitin-conjugating enzyme E2-17 kDa 3 / Ubiquitin-protein ligase D3


Mass: 16657.938 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: UBE2D3, UBC5C, UBCH5C / Production host: Escherichia coli (E. coli)
References: UniProt: P61077, E2 ubiquitin-conjugating enzyme, (E3-independent) E2 ubiquitin-conjugating enzyme
#9: Protein E3 ubiquitin-protein ligase RNF168 / hRNF168 / RING finger protein 168 / RING-type E3 ubiquitin transferase RNF168


Mass: 12987.123 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: RNF168 / Production host: Escherichia coli (E. coli)
References: UniProt: Q8IYW5, RING-type E3 ubiquitin transferase

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Histone H2A type 1- ... , 2 types, 2 molecules CG

#3: Protein Histone H2A type 1-B/E / Histone H2A.2 / Histone H2A/a / Histone H2A/m


Mass: 11482.382 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: H2AC4, H2AFM, HIST1H2AB, H2AC8, H2AFA, HIST1H2AE / Production host: Escherichia coli (E. coli) / References: UniProt: P04908
#5: Protein Histone H2A type 1-B/E / Histone H2A.2 / Histone H2A/a / Histone H2A/m


Mass: 11807.769 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: H2AC4, H2AFM, HIST1H2AB, H2AC8, H2AFA, HIST1H2AE / Production host: Escherichia coli (E. coli) / References: UniProt: P04908

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DNA chain , 2 types, 2 molecules IJ

#6: DNA chain DNA (143-MER)


Mass: 44359.242 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Escherichia coli (E. coli)
#7: DNA chain DNA (143-MER)


Mass: 43918.973 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Escherichia coli (E. coli)

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Non-polymers , 1 types, 2 molecules

#10: Chemical ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Zn / Feature type: SUBJECT OF INVESTIGATION

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Details

Has ligand of interestY
Has protein modificationN

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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: cryo-EM structures of RNF168/UbcH5c-Ub in complex with H2AK13Ub nucleosomes determined by activity-based chemical trapping strategy (adjacent H2AK13/15 dual-monoubiquitination)
Type: COMPLEX / Entity ID: #1-#9 / Source: RECOMBINANT
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Escherichia coli (E. coli)
Buffer solutionpH: 7.5
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
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: 2000 nm / Nominal defocus min: 1000 nm
Image recordingElectron dose: 50 e/Å2 / Film or detector model: GATAN K3 (6k x 4k)

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Processing

EM softwareName: PHENIX / Category: model refinement
CTF correctionType: NONE
3D reconstructionResolution: 3.27 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 147576 / Symmetry type: POINT
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.00514300
ELECTRON MICROSCOPYf_angle_d0.53920558
ELECTRON MICROSCOPYf_dihedral_angle_d26.2465823
ELECTRON MICROSCOPYf_chiral_restr0.0352336
ELECTRON MICROSCOPYf_plane_restr0.0031615

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