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- PDB-9dg3: ncPRC1RYBP Delta-linker mutant bound to singly modified H2AK119Ub... -

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Basic information

Entry
Database: PDB / ID: 9dg3
TitlencPRC1RYBP Delta-linker mutant bound to singly modified H2AK119Ub nucleosome
Components
  • (DNA (187-MER)) x 2
  • (Histone H2A type ...) x 2
  • Histone H2B 1.1
  • Histone H3.2
  • Histone H4
  • RING1 and YY1-binding protein
  • Ubiquitin
KeywordsNUCLEAR PROTEIN/DNA / DNA complex protein / structural protein / NUCLEAR PROTEIN-DNA complex
Function / homology
Function and homology information


PcG protein complex / hypothalamus gonadotrophin-releasing hormone neuron development / female meiosis I / positive regulation of protein monoubiquitination / fat pad development / mitochondrion transport along microtubule / female gonad development / seminiferous tubule development / Transcriptional Regulation by E2F6 / RUNX1 interacts with co-factors whose precise effect on RUNX1 targets is not known ...PcG protein complex / hypothalamus gonadotrophin-releasing hormone neuron development / female meiosis I / positive regulation of protein monoubiquitination / fat pad development / mitochondrion transport along microtubule / female gonad development / seminiferous tubule development / Transcriptional Regulation by E2F6 / RUNX1 interacts with co-factors whose precise effect on RUNX1 targets is not known / male meiosis I / positive regulation of intrinsic apoptotic signaling pathway by p53 class mediator / energy homeostasis / neuron projection morphogenesis / regulation of proteasomal protein catabolic process / Maturation of protein E / Maturation of protein E / ER Quality Control Compartment (ERQC) / Myoclonic epilepsy of Lafora / FLT3 signaling by CBL mutants / Constitutive Signaling by NOTCH1 HD Domain Mutants / IRAK2 mediated activation of TAK1 complex / Prevention of phagosomal-lysosomal fusion / Alpha-protein kinase 1 signaling pathway / Glycogen synthesis / IRAK1 recruits IKK complex / IRAK1 recruits IKK complex upon TLR7/8 or 9 stimulation / negative regulation of proteasomal ubiquitin-dependent protein catabolic process / Endosomal Sorting Complex Required For Transport (ESCRT) / Membrane binding and targetting of GAG proteins / Negative regulation of FLT3 / Regulation of TBK1, IKKε (IKBKE)-mediated activation of IRF3, IRF7 / PTK6 Regulates RTKs and Their Effectors AKT1 and DOK1 / Regulation of TBK1, IKKε-mediated activation of IRF3, IRF7 upon TLR3 ligation / IRAK2 mediated activation of TAK1 complex upon TLR7/8 or 9 stimulation / NOTCH2 Activation and Transmission of Signal to the Nucleus / TICAM1,TRAF6-dependent induction of TAK1 complex / TICAM1-dependent activation of IRF3/IRF7 / APC/C:Cdc20 mediated degradation of Cyclin B / Regulation of FZD by ubiquitination / Downregulation of ERBB4 signaling / APC-Cdc20 mediated degradation of Nek2A / p75NTR recruits signalling complexes / InlA-mediated entry of Listeria monocytogenes into host cells / TRAF6 mediated IRF7 activation in TLR7/8 or 9 signaling / Regulation of pyruvate metabolism / NF-kB is activated and signals survival / TRAF6-mediated induction of TAK1 complex within TLR4 complex / regulation of neuron apoptotic process / Downregulation of ERBB2:ERBB3 signaling / Regulation of innate immune responses to cytosolic DNA / Pexophagy / NRIF signals cell death from the nucleus / Activated NOTCH1 Transmits Signal to the Nucleus / Regulation of PTEN localization / VLDLR internalisation and degradation / Synthesis of active ubiquitin: roles of E1 and E2 enzymes / positive regulation of protein ubiquitination / TICAM1, RIP1-mediated IKK complex recruitment / Regulation of BACH1 activity / Translesion synthesis by REV1 / MAP3K8 (TPL2)-dependent MAPK1/3 activation / Degradation of CDH1 / Translesion synthesis by POLK / InlB-mediated entry of Listeria monocytogenes into host cell / JNK (c-Jun kinases) phosphorylation and activation mediated by activated human TAK1 / Activation of IRF3, IRF7 mediated by TBK1, IKKε (IKBKE) / Josephin domain DUBs / Downregulation of TGF-beta receptor signaling / Translesion synthesis by POLI / Gap-filling DNA repair synthesis and ligation in GG-NER / IKK complex recruitment mediated by RIP1 / Degradation of CRY and PER proteins / Regulation of activated PAK-2p34 by proteasome mediated degradation / PINK1-PRKN Mediated Mitophagy / regulation of mitochondrial membrane potential / TGF-beta receptor signaling in EMT (epithelial to mesenchymal transition) / TNFR1-induced NF-kappa-B signaling pathway / Autodegradation of Cdh1 by Cdh1:APC/C / TCF dependent signaling in response to WNT / Regulation of NF-kappa B signaling / APC/C:Cdc20 mediated degradation of Securin / N-glycan trimming in the ER and Calnexin/Calreticulin cycle / transcription coregulator activity / activated TAK1 mediates p38 MAPK activation / Asymmetric localization of PCP proteins / Ubiquitin-dependent degradation of Cyclin D / SCF-beta-TrCP mediated degradation of Emi1 / NIK-->noncanonical NF-kB signaling / Regulation of signaling by CBL / TNFR2 non-canonical NF-kB pathway / AUF1 (hnRNP D0) binds and destabilizes mRNA / NOTCH3 Activation and Transmission of Signal to the Nucleus / Negative regulators of DDX58/IFIH1 signaling / Assembly of the pre-replicative complex / Negative regulation of FGFR3 signaling / Fanconi Anemia Pathway / Peroxisomal protein import / Vpu mediated degradation of CD4 / Deactivation of the beta-catenin transactivating complex
Similarity search - Function
Yaf2/RYBP C-terminal binding motif / RING1 and YY1-binding protein/YY1-associated factor 2 / Yaf2/RYBP C-terminal binding motif / Zinc finger domain / Zn-finger in Ran binding protein and others / Zinc finger RanBP2 type profile. / Zinc finger, RanBP2-type superfamily / Zinc finger RanBP2-type signature. / Zinc finger, RanBP2-type / : ...Yaf2/RYBP C-terminal binding motif / RING1 and YY1-binding protein/YY1-associated factor 2 / Yaf2/RYBP C-terminal binding motif / Zinc finger domain / Zn-finger in Ran binding protein and others / Zinc finger RanBP2 type profile. / Zinc finger, RanBP2-type superfamily / Zinc finger RanBP2-type signature. / Zinc finger, RanBP2-type / : / Histone H2A conserved site / Histone H2A signature. / Histone H2B 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 / Histone H3 signature 1. / Histone H3 signature 2. / Histone H3 / Histone H3/CENP-A / : / Ubiquitin domain signature. / Ubiquitin conserved site / Ubiquitin domain / Histone H2A/H2B/H3 / Core histone H2A/H2B/H3/H4 domain / Histone-fold / Ubiquitin family / Ubiquitin homologues / Ubiquitin domain profile. / Ubiquitin-like domain / Ubiquitin-like domain superfamily
Similarity search - Domain/homology
DNA / DNA (> 10) / DNA (> 100) / Histone H2B 1.1 / Histone H2A type 1 / Polyubiquitin-B / Histone H4 / Histone H3.2 / RING1 and YY1-binding protein
Similarity search - Component
Biological speciesXenopus laevis (African clawed frog)
synthetic construct (others)
Homo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.46 Å
AuthorsGodinez-Lopez, V. / Valencia-Sanchez, M.I. / Armache, J.P. / Armache, K.-J.
Funding support United States, 3items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R01GM115882 United States
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R01CA266978 United States
The Mark Foundation United States
CitationJournal: Nature / Year: 2024
Title: Read-write mechanisms of H2A ubiquitination by Polycomb repressive complex 1.
Authors: Victoria Godínez López / Marco Igor Valencia-Sánchez / Stephen Abini-Agbomson / Jonathan F Thomas / Rachel Lee / Pablo De Ioannes / Brian A Sosa / Jean-Paul Armache / Karim-Jean Armache /
Abstract: Epigenetic inheritance of silent chromatin domains is fundamental to cellular memory during embryogenesis, but it must overcome the dilution of repressive histone modifications during DNA replication. ...Epigenetic inheritance of silent chromatin domains is fundamental to cellular memory during embryogenesis, but it must overcome the dilution of repressive histone modifications during DNA replication. One such modification, histone H2A lysine 119 monoubiquitination (H2AK119Ub), needs to be re-established by the Polycomb repressive complex 1 (PRC1) E3 ligase to restore the silent Polycomb domain. However, the exact mechanism behind this restoration remains unknown. Here, combining cryo-electron microscopy (cryo-EM) and functional approaches, we characterize the read-write mechanism of the non-canonical PRC1-containing RYBP (ncPRC1). This mechanism, which functions as a positive-feedback loop in epigenetic regulation, emphasizes the pivotal role of ncPRC1 in restoring H2AK119Ub. We observe an asymmetrical binding of ncPRC1 to H2AK119Ub nucleosomes, guided in part by the N-terminal zinc-finger domain of RYBP binding to residual H2AK119Ub on nascent chromatin. This recognition positions the RING domains of RING1B and BMI1 on the unmodified nucleosome side, enabling recruitment of the E2 enzyme to ubiquitinate H2AK119 within the same nucleosome (intra-nucleosome read-write) or across nucleosomes (inter-nucleosome read-write). Collectively, our findings provide key structural and mechanistic insights into the dynamic interplay of epigenetic regulation, highlighting the significance of ncPRC1 in H2AK119Ub restoration to sustain repressive chromatin domains.
History
DepositionSep 1, 2024Deposition site: RCSB / Processing site: RCSB
Revision 1.0Nov 20, 2024Provider: repository / Type: Initial release
Revision 1.1Jan 15, 2025Group: Data collection / Database references / Category: citation / citation_author / em_admin
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_ASTM / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.journal_volume / _citation.page_first / _citation.page_last / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year / _em_admin.last_update

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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
D: Histone H2B 1.1
E: Histone H3.2
F: Histone H4
G: Histone H2A type 1
H: Histone H2B 1.1
I: DNA (187-MER)
J: DNA (187-MER)
M: RING1 and YY1-binding protein
N: Ubiquitin
hetero molecules


Theoretical massNumber of molelcules
Total (without water)258,80213
Polymers258,73712
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

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Protein , 5 types, 8 molecules AEBFDHMN

#1: Protein Histone H3.2 / Histone H3


Mass: 15435.126 Da / Num. of mol.: 2 / Mutation: G103A
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Xenopus laevis (African clawed frog) / Production host: Escherichia coli (E. coli) / References: UniProt: P84233
#2: Protein Histone H4


Mass: 11394.426 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Xenopus laevis (African clawed frog) / Production host: Escherichia coli (E. coli) / References: UniProt: P62799
#4: Protein Histone H2B 1.1 / H2B1.1


Mass: 13979.291 Da / Num. of mol.: 2 / Mutation: S33T
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Xenopus laevis (African clawed frog) / Production host: Escherichia coli (E. coli) / References: UniProt: P02281
#8: Protein RING1 and YY1-binding protein / Apoptin-associating protein 1 / APAP-1 / Death effector domain-associated factor / DED-associated ...Apoptin-associating protein 1 / APAP-1 / Death effector domain-associated factor / DED-associated factor / YY1 and E4TF1-associated factor 1


Mass: 24863.625 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: RYBP, DEDAF, YEAF1 / Production host: Escherichia coli (E. coli) / References: UniProt: Q8N488
#9: Protein Ubiquitin


Mass: 8622.922 Da / Num. of mol.: 1 / Mutation: G76C
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: UBB / Production host: Escherichia coli (E. coli) / References: UniProt: P0CG47

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

#3: Protein Histone H2A type 1


Mass: 14093.436 Da / Num. of mol.: 1 / Mutation: G100R
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Xenopus laevis (African clawed frog) / Production host: Escherichia coli (E. coli) / References: UniProt: P06897
#5: Protein Histone H2A type 1


Mass: 14067.398 Da / Num. of mol.: 1 / Mutation: G100R, K119C
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Xenopus laevis (African clawed frog) / Production host: Escherichia coli (E. coli) / References: UniProt: P06897

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DNA chain , 2 types, 2 molecules IJ

#6: DNA chain DNA (187-MER)


Mass: 57982.918 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) synthetic construct (others) / Production host: Escherichia coli (E. coli)
#7: DNA chain DNA (187-MER)


Mass: 57488.551 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) synthetic construct (others) / Production host: Escherichia coli (E. coli)

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Non-polymers , 1 types, 1 molecules

#10: Chemical ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Zn

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Details

Has ligand of interestN
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: ncPRC1RYBP Delta-linker mutant bound to singly modified H2AK119Ub nucleosome
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: Talos Arctica / Image courtesy: FEI Company
MicroscopyModel: FEI TALOS ARCTICA
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 200 kV / Illumination mode: OTHER
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 3500 nm / Nominal defocus min: 800 nm
Image recordingElectron dose: 49.6 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) / Num. of real images: 3292

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Processing

EM software
IDNameCategory
2Leginonimage acquisition
10cryoSPARCfinal Euler assignment
11cryoSPARCclassification
12cryoSPARC3D reconstruction
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Particle selectionNum. of particles selected: 1127632
3D reconstructionResolution: 3.46 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 23464 / Symmetry type: POINT
Atomic model building
IDPDB-ID 3D fitting-IDAccession codeInitial refinement model-IDSource nameType
13TU4

3tu4

13TU41PDBexperimental model
28H1T

8h1t

18H1T2PDBexperimental model
38SVF

8svf

18SVF3PDBexperimental model
42D9G

2d9g

12D9G4PDBexperimental model
51UBQ

1ubq

11UBQ5PDBexperimental model
62WWZ

2wwz

12WWZ6PDBexperimental model

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