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- PDB-8uqa: Crystal structure of RNF168 (RING)-UbcH5c fused to H2A-H2B via a ... -

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Basic information

Entry
Database: PDB / ID: 8uqa
TitleCrystal structure of RNF168 (RING)-UbcH5c fused to H2A-H2B via a 12-residue linker
ComponentsE3 ubiquitin-protein ligase RNF168,Ubiquitin-conjugating enzyme E2 D3,Histone H2B type 2-E,Histone H2A type 1-B/E
KeywordsTRANSFERASE / RNF168 / UbcH5c / Histone H2A / Histone H2B / Chromatin / Ubiquitin ligase / Ubiquitin-conjugating enzyme / DNA damage response / DNA double-strand break repair / PROTEIN BINDING / PROTEIN BINDING-Transferase complex
Function / homology
Function and homology information


histone H2AK15 ubiquitin ligase activity / histone ubiquitin ligase activity / (E3-independent) E2 ubiquitin-conjugating enzyme / protein K6-linked ubiquitination / Signaling by BMP / isotype switching / double-strand break repair via classical nonhomologous end joining / protein K11-linked ubiquitination / DNA repair-dependent chromatin remodeling / K63-linked polyubiquitin modification-dependent protein binding ...histone H2AK15 ubiquitin ligase activity / histone ubiquitin ligase activity / (E3-independent) E2 ubiquitin-conjugating enzyme / protein K6-linked ubiquitination / Signaling by BMP / isotype switching / double-strand break repair via classical nonhomologous end joining / protein K11-linked ubiquitination / DNA repair-dependent chromatin remodeling / K63-linked polyubiquitin modification-dependent protein binding / positive regulation of protein targeting to mitochondrion / E2 ubiquitin-conjugating enzyme / response to ionizing radiation / negative regulation of transcription elongation by RNA polymerase II / ubiquitin conjugating enzyme activity / protein monoubiquitination / protein K63-linked ubiquitination / negative regulation of BMP signaling pathway / nucleosome binding / protein K48-linked ubiquitination / protein autoubiquitination / protein localization to CENP-A containing chromatin / Replacement of protamines by nucleosomes in the male pronucleus / interstrand cross-link repair / CENP-A containing nucleosome / ubiquitin ligase complex / epigenetic regulation of gene expression / SUMOylation of DNA damage response and repair proteins / Packaging Of Telomere Ends / Recognition and association of DNA glycosylase with site containing an affected purine / Cleavage of the damaged purine / 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 / positive regulation of DNA repair / Inhibition of DNA recombination at telomere / Meiotic synapsis / RNA Polymerase I Promoter Opening / Assembly of the ORC complex at the origin of replication / TICAM1, RIP1-mediated IKK complex recruitment / DNA methylation / IKK complex recruitment mediated by RIP1 / Condensation of Prophase Chromosomes / HCMV Late Events / Chromatin modifications during the maternal to zygotic transition (MZT) / ERCC6 (CSB) and EHMT2 (G9a) positively regulate rRNA expression / SIRT1 negatively regulates rRNA expression / innate immune response in mucosa / PRC2 methylates histones and DNA / ubiquitin binding / Defective pyroptosis / Negative regulators of DDX58/IFIH1 signaling / HDACs deacetylate histones / Peroxisomal protein import / RNA Polymerase I Promoter Escape / Downregulation of SMAD2/3:SMAD4 transcriptional activity / Regulation of TNFR1 signaling / Nonhomologous End-Joining (NHEJ) / Transcriptional regulation by small RNAs / Formation of the beta-catenin:TCF transactivating complex / protein modification process / RING-type E3 ubiquitin transferase / RUNX1 regulates genes involved in megakaryocyte differentiation and platelet function / Activated PKN1 stimulates transcription of AR (androgen receptor) regulated genes KLK2 and KLK3 / NoRC negatively regulates rRNA expression / G2/M DNA damage checkpoint / Oxygen-dependent proline hydroxylation of Hypoxia-inducible Factor Alpha / B-WICH complex positively regulates rRNA expression / Inactivation of CSF3 (G-CSF) signaling / DNA Damage/Telomere Stress Induced Senescence / Metalloprotease DUBs / RMTs methylate histone arginines / Meiotic recombination / Pre-NOTCH Transcription and Translation / nucleosome assembly / double-strand break repair via nonhomologous end joining / Activation of anterior HOX genes in hindbrain development during early embryogenesis / HCMV Early Events / protein polyubiquitination / Transcriptional regulation of granulopoiesis / structural constituent of chromatin / ubiquitin-protein transferase activity / UCH proteinases / ubiquitin protein ligase activity / double-strand break repair / nucleosome / antimicrobial humoral immune response mediated by antimicrobial peptide / Antigen processing: Ubiquitination & Proteasome degradation / E3 ubiquitin ligases ubiquitinate target proteins / Recruitment and ATM-mediated phosphorylation of repair and signaling proteins at DNA double strand breaks / site of double-strand break / Neddylation / RUNX1 regulates transcription of genes involved in differentiation of HSCs / chromatin organization / Processing of DNA double-strand break ends / HATs acetylate histones / antibacterial humoral response / histone binding / ubiquitin-dependent protein catabolic process / Senescence-Associated Secretory Phenotype (SASP)
Similarity search - Function
E3 ubiquitin-protein ligase RNF168 / Zinc finger, C3HC4 RING-type / Zinc finger, C3HC4 type (RING finger) / Ubiquitin-conjugating enzyme, active site / Ubiquitin-conjugating (UBC) active site signature. / Ubiquitin-conjugating enzyme E2, catalytic domain homologues / Ubiquitin-conjugating enzyme E2 / Ubiquitin-conjugating enzyme / Ubiquitin-conjugating (UBC) core domain profile. / Ubiquitin-conjugating enzyme/RWD-like ...E3 ubiquitin-protein ligase RNF168 / Zinc finger, C3HC4 RING-type / Zinc finger, C3HC4 type (RING finger) / Ubiquitin-conjugating enzyme, active site / Ubiquitin-conjugating (UBC) active site signature. / Ubiquitin-conjugating enzyme E2, catalytic domain homologues / Ubiquitin-conjugating enzyme E2 / Ubiquitin-conjugating enzyme / Ubiquitin-conjugating (UBC) core domain profile. / Ubiquitin-conjugating enzyme/RWD-like / Ring finger / Histone H2B signature. / Histone H2B / Histone H2B / Histone H2A conserved site / Histone H2A signature. / Histone H2A, C-terminal domain / C-terminus of histone H2A / Histone H2A / Histone 2A / Zinc finger RING-type profile. / Zinc finger, RING-type / Histone H2A/H2B/H3 / Core histone H2A/H2B/H3/H4 / Histone-fold / Zinc finger, RING/FYVE/PHD-type
Similarity search - Domain/homology
Histone H2A type 1-B/E / Ubiquitin-conjugating enzyme E2 D3 / Histone H2B type 2-E / E3 ubiquitin-protein ligase RNF168
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.049 Å
AuthorsHu, Q. / Botuyan, M.V. / Mer, G.
Funding support United States, 2items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R35 GM136262 United States
National Institutes of Health/National Cancer Institute (NIH/NCI)R01 CA132878 United States
CitationJournal: Mol Cell / Year: 2024
Title: Mechanisms of RNF168 nucleosome recognition and ubiquitylation.
Authors: Qi Hu / Debiao Zhao / Gaofeng Cui / Janarjan Bhandari / James R Thompson / Maria Victoria Botuyan / Georges Mer /
Abstract: RNF168 plays a central role in the DNA damage response (DDR) by ubiquitylating histone H2A at K13 and K15. These modifications direct BRCA1-BARD1 and 53BP1 foci formation in chromatin, essential for ...RNF168 plays a central role in the DNA damage response (DDR) by ubiquitylating histone H2A at K13 and K15. These modifications direct BRCA1-BARD1 and 53BP1 foci formation in chromatin, essential for cell-cycle-dependent DNA double-strand break (DSB) repair pathway selection. The mechanism by which RNF168 catalyzes the targeted accumulation of H2A ubiquitin conjugates to form repair foci around DSBs remains unclear. Here, using cryoelectron microscopy (cryo-EM), nuclear magnetic resonance (NMR) spectroscopy, and functional assays, we provide a molecular description of the reaction cycle and dynamics of RNF168 as it modifies the nucleosome and recognizes its ubiquitylation products. We demonstrate an interaction of a canonical ubiquitin-binding domain within full-length RNF168, which not only engages ubiquitin but also the nucleosome surface, clarifying how such site-specific ubiquitin recognition propels a signal amplification loop. Beyond offering mechanistic insights into a key DDR protein, our study aids in understanding site specificity in both generating and interpreting chromatin ubiquitylation.
History
DepositionOct 23, 2023Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jan 17, 2024Provider: repository / Type: Initial release
Revision 1.1Jan 31, 2024Group: Database references / Category: citation / citation_author
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_ASTM / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year
Revision 1.2Mar 20, 2024Group: Database references / Category: citation
Item: _citation.journal_volume / _citation.page_first / _citation.page_last

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
K: E3 ubiquitin-protein ligase RNF168,Ubiquitin-conjugating enzyme E2 D3,Histone H2B type 2-E,Histone H2A type 1-B/E
hetero molecules


Theoretical massNumber of molelcules
Total (without water)49,86510
Polymers49,5241
Non-polymers3429
Water4,522251
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)102.953, 102.953, 87.231
Angle α, β, γ (deg.)90.00, 90.00, 120.00
Int Tables number154
Space group name H-MP3221
Components on special symmetry positions
IDModelComponents
11K-5225-

HOH

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Components

#1: Protein E3 ubiquitin-protein ligase RNF168,Ubiquitin-conjugating enzyme E2 D3,Histone H2B type 2-E,Histone H2A type 1-B/E


Mass: 49523.863 Da / Num. of mol.: 1 / Mutation: C85K in UbcH5c
Source method: isolated from a genetically manipulated source
Details: residues 1-94 of RNF168, followed by residues 2-147 of UbcH5c, followed by residues 33-123 of H2B, followed by residues 12-105 of H2A
Source: (gene. exp.) Homo sapiens (human)
Gene: RNF168, UBE2D3, UBC5C, UBCH5C, H2BC21, H2BFQ, HIST2H2BE, H2AC4, H2AFM, HIST1H2AB, H2AC8, H2AFA, HIST1H2AE
Production host: Escherichia coli (E. coli)
References: UniProt: Q8IYW5, UniProt: P61077, UniProt: Q16778, UniProt: P04908, RING-type E3 ubiquitin transferase, E2 ubiquitin-conjugating enzyme, (E3-independent) E2 ubiquitin-conjugating enzyme
#2: Chemical ChemComp-NA / SODIUM ION


Mass: 22.990 Da / Num. of mol.: 3 / Source method: obtained synthetically / Formula: Na
#3: Chemical ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Zn / Feature type: SUBJECT OF INVESTIGATION
#4: Chemical
ChemComp-CL / CHLORIDE ION / Chloride


Mass: 35.453 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: Cl
#5: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 251 / Source method: isolated from a natural source / Formula: H2O
Has ligand of interestY

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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: 2.69 Å3/Da / Density % sol: 54.31 %
Crystal growTemperature: 288 K / Method: vapor diffusion, hanging drop / pH: 7.5
Details: Crystals were obtained by mixing 2 microliters of the protein fusion (8.0 mg/mL) in 10 mM HEPES, pH 7.5, 600 mM NaCl, 1 mM TCEP and 2 microliters of the reservoir solution containing 0.1 M ...Details: Crystals were obtained by mixing 2 microliters of the protein fusion (8.0 mg/mL) in 10 mM HEPES, pH 7.5, 600 mM NaCl, 1 mM TCEP and 2 microliters of the reservoir solution containing 0.1 M HEPES, pH 7.5, 2.4 M NaCl

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Data collection

DiffractionMean temperature: 100 K / Serial crystal experiment: N
Diffraction sourceSource: SYNCHROTRON / Site: APS / Beamline: 19-BM / Wavelength: 0.9792 Å
DetectorType: ADSC QUANTUM 315r / Detector: CCD / Date: Jun 17, 2017
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.9792 Å / Relative weight: 1
ReflectionResolution: 2.049→50 Å / Num. obs: 33909 / % possible obs: 99.78 % / Redundancy: 14.2 % / Biso Wilson estimate: 32.99 Å2 / CC1/2: 0.999 / CC star: 1 / Rmerge(I) obs: 0.09873 / Rpim(I) all: 0.02712 / Rrim(I) all: 0.1024 / Net I/σ(I): 31.56
Reflection shellResolution: 2.049→2.122 Å / Redundancy: 12.6 % / Rmerge(I) obs: 0.8334 / Mean I/σ(I) obs: 4.73 / Num. unique obs: 3326 / CC1/2: 0.853 / CC star: 0.96 / Rpim(I) all: 0.2426 / Rrim(I) all: 0.8685 / % possible all: 99.52

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Processing

Software
NameVersionClassification
PHENIX1.13_2998refinement
HKL-2000data reduction
HKL-2000data scaling
PHENIXphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 4GB0, 5EGG

4gb0

5egg


Resolution: 2.049→39.179 Å / SU ML: 0.19 / Cross valid method: FREE R-VALUE / σ(F): 1.34 / Phase error: 23.32 / Stereochemistry target values: ML
RfactorNum. reflection% reflection
Rfree0.2305 1999 5.9 %
Rwork0.192 --
obs0.1943 33871 99.81 %
Solvent computationShrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å / Solvent model: FLAT BULK SOLVENT MODEL
Refinement stepCycle: LAST / Resolution: 2.049→39.179 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3340 0 9 251 3600
Refine LS restraints
Refine-IDTypeDev idealNumber
X-RAY DIFFRACTIONf_bond_d0.0033464
X-RAY DIFFRACTIONf_angle_d0.5544697
X-RAY DIFFRACTIONf_dihedral_angle_d11.1762146
X-RAY DIFFRACTIONf_chiral_restr0.04523
X-RAY DIFFRACTIONf_plane_restr0.004605
LS refinement shell
Resolution (Å)Rfactor RfreeNum. reflection RfreeRfactor RworkNum. reflection RworkRefine-ID% reflection obs (%)
2.049-2.10010.271400.24832227X-RAY DIFFRACTION99
2.1001-2.15690.27751420.21822257X-RAY DIFFRACTION100
2.1569-2.22040.26251430.22282236X-RAY DIFFRACTION100
2.2204-2.2920.25941440.21652281X-RAY DIFFRACTION100
2.292-2.3740.24811420.22882223X-RAY DIFFRACTION100
2.374-2.4690.24611410.22112269X-RAY DIFFRACTION100
2.469-2.58130.28131430.22242263X-RAY DIFFRACTION100
2.5813-2.71740.26641420.22562276X-RAY DIFFRACTION100
2.7174-2.88760.2531400.21432254X-RAY DIFFRACTION100
2.8876-3.11050.2371430.21752287X-RAY DIFFRACTION100
3.1105-3.42330.25181400.18932272X-RAY DIFFRACTION100
3.4233-3.91830.19031450.16322298X-RAY DIFFRACTION100
3.9183-4.93510.18611440.14682321X-RAY DIFFRACTION100
4.9351-39.1790.22781500.18982408X-RAY DIFFRACTION100

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