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- PDB-9v9v: Cryo-EM structure of the ncPRC1.4 complex containing one RNF2-BMI... -

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Basic information

Entry
Database: PDB / ID: 9v9v
TitleCryo-EM structure of the ncPRC1.4 complex containing one RNF2-BMI1 and one RYBP bound to the H2AK119ubH2BK120ub-modified nucleosome
Components
  • (DNA (132-MER)) x 2
  • E3 ubiquitin-protein ligase RING2
  • Histone H2A
  • Histone H2B
  • Histone H3
  • Histone H4
  • Polycomb complex protein BMI-1
  • RING1 and YY1-binding protein
  • Ubiquitin
KeywordsGENE REGULATION / nucleosome modification / transcriptional regulation
Function / homology
Function and homology information


histone H2AK119 ubiquitin ligase activity / PRC1 complex / regulation of kidney development / RING-like zinc finger domain binding / segment specification / rostrocaudal neural tube patterning / ubiquitin-protein transferase activator activity / regulation of adaxial/abaxial pattern formation / somatic stem cell division / embryonic skeletal system morphogenesis ...histone H2AK119 ubiquitin ligase activity / PRC1 complex / regulation of kidney development / RING-like zinc finger domain binding / segment specification / rostrocaudal neural tube patterning / ubiquitin-protein transferase activator activity / regulation of adaxial/abaxial pattern formation / somatic stem cell division / embryonic skeletal system morphogenesis / sex chromatin / positive regulation of immature T cell proliferation in thymus / PcG protein complex / SUMOylation of DNA methylation proteins / gastrulation with mouth forming second / SUMOylation of RNA binding proteins / hypothalamus gonadotrophin-releasing hormone neuron development / anterior/posterior axis specification / female meiosis I / positive regulation of ubiquitin-protein transferase activity / positive regulation of protein monoubiquitination / fat pad development / mitochondrion transport along microtubule / DNA methylation-dependent constitutive heterochromatin formation / seminiferous tubule development / negative regulation of gene expression, epigenetic / female gonad development / Transcriptional Regulation by E2F6 / germ cell development / humoral immune response / RUNX1 interacts with co-factors whose precise effect on RUNX1 targets is not known / MLL1 complex / male meiosis I / hemopoiesis / negative regulation of apoptotic signaling pathway / : / cellular response to interleukin-1 / cellular response to dexamethasone stimulus / positive regulation of intrinsic apoptotic signaling pathway by p53 class mediator / ubiquitin ligase complex / SUMOylation of DNA damage response and repair proteins / positive regulation of B cell proliferation / energy homeostasis / heterochromatin / neuron projection morphogenesis / regulation of proteasomal protein catabolic process / Maturation of protein E / Maturation of protein E / SUMOylation of transcription cofactors / ER Quality Control Compartment (ERQC) / Myoclonic epilepsy of Lafora / negative regulation of proteasomal ubiquitin-dependent protein catabolic process / FLT3 signaling by CBL mutants / epigenetic regulation of gene expression / IRAK2 mediated activation of TAK1 complex / Alpha-protein kinase 1 signaling pathway / Glycogen synthesis / IRAK1 recruits IKK complex / IRAK1 recruits IKK complex upon TLR7/8 or 9 stimulation / Prevention of phagosomal-lysosomal fusion / 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 / Constitutive Signaling by NOTCH1 HD Domain Mutants / 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 / Downregulation of ERBB4 signaling / Regulation of FZD by ubiquitination / APC-Cdc20 mediated degradation of Nek2A / p75NTR recruits signalling complexes / regulation of neuron apoptotic process / InlA-mediated entry of Listeria monocytogenes into host cells / TRAF6 mediated IRF7 activation in TLR7/8 or 9 signaling / NF-kB is activated and signals survival / TRAF6-mediated induction of TAK1 complex within TLR4 complex / Regulation of pyruvate metabolism / Pexophagy / Downregulation of ERBB2:ERBB3 signaling / Regulation of innate immune responses to cytosolic DNA / NRIF signals cell death from the nucleus / Regulation of PTEN localization / SUMOylation of chromatin organization proteins / Regulation of PTEN gene transcription / VLDLR internalisation and degradation / positive regulation of protein ubiquitination / Activated NOTCH1 Transmits Signal to the Nucleus / Synthesis of active ubiquitin: roles of E1 and E2 enzymes / Translesion synthesis by REV1 / TICAM1, RIP1-mediated IKK complex recruitment / Regulation of BACH1 activity / 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 / MAP3K8 (TPL2)-dependent MAPK1/3 activation
Similarity search - Function
Yaf2/RYBP C-terminal binding motif / RING1 and YY1-binding protein/YY1-associated factor 2 / Yaf2/RYBP C-terminal binding motif / E3 ubiquitin-protein ligase RING2 / E3 ubiquitin-protein ligase RING1/RING2 / RAWUL domain / RAWUL domain RING finger- and WD40-associated ubiquitin-like / Zinc finger, C3HC4 type (RING finger) / Zinc finger domain / Zn-finger in Ran binding protein and others ...Yaf2/RYBP C-terminal binding motif / RING1 and YY1-binding protein/YY1-associated factor 2 / Yaf2/RYBP C-terminal binding motif / E3 ubiquitin-protein ligase RING2 / E3 ubiquitin-protein ligase RING1/RING2 / RAWUL domain / RAWUL domain RING finger- and WD40-associated ubiquitin-like / Zinc finger, C3HC4 type (RING finger) / 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 / Zinc finger, RING-type, conserved site / Zinc finger RING-type signature. / Ring finger / : / 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 / Zinc finger RING-type profile. / Zinc finger, RING-type / Histone H3 signature 1. / Histone H3 signature 2. / Histone H3 / Histone H3/CENP-A / : / Ubiquitin domain signature. / Ubiquitin conserved site / Histone H2A/H2B/H3 / Core histone H2A/H2B/H3/H4 domain / Ubiquitin domain / Histone-fold / Ubiquitin family / Ubiquitin homologues / Ubiquitin domain profile. / Ubiquitin-like domain / Zinc finger, RING/FYVE/PHD-type / Ubiquitin-like domain superfamily
Similarity search - Domain/homology
DNA / DNA (> 10) / DNA (> 100) / Histone H3 / Histone H2B / Polyubiquitin-B / Polycomb complex protein BMI-1 / Histone H4 / Histone H2A / RING1 and YY1-binding protein / E3 ubiquitin-protein ligase RING2
Similarity search - Component
Biological speciesXenopus laevis (African clawed frog)
Homo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.8 Å
AuthorsYu, Y. / Cai, D. / Zhang, Y.Z. / Huang, J.
Funding support1items
OrganizationGrant numberCountry
Not funded
CitationJournal: To Be Published
Title: Structural mechanisms of PRC1-mediated interplay between gene repression and activation
Authors: Yu, Y. / Cai, D. / Zhang, Y.Z. / Huang, J.
History
DepositionJun 2, 2025Deposition site: PDBJ / Processing site: PDBC
Revision 1.0Jun 10, 2026Provider: repository / Type: Initial release
Revision 1.0Jun 10, 2026Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
Revision 1.0Jun 10, 2026Data content type: FSC / Data content type: FSC / Provider: repository / Type: Initial release
Revision 1.0Jun 10, 2026Data content type: Half map / Part number: 1 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Jun 10, 2026Data content type: Half map / Part number: 2 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Jun 10, 2026Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Jun 10, 2026Data content type: Mask / Part number: 1 / Data content type: Mask / Provider: repository / Type: Initial release
Revision 1.0Jun 10, 2026Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Histone H3
B: Histone H4
C: Histone H2A
D: Histone H2B
E: Histone H3
F: Histone H4
G: Histone H2A
H: Histone H2B
I: DNA (132-MER)
J: DNA (132-MER)
M: Polycomb complex protein BMI-1
N: E3 ubiquitin-protein ligase RING2
O: Ubiquitin
L: RING1 and YY1-binding protein
K: Ubiquitin
hetero molecules


Theoretical massNumber of molelcules
Total (without water)308,28120
Polymers307,95415
Non-polymers3275
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 , 8 types, 13 molecules AEBFCGDHMNOKL

#1: Protein Histone H3


Mass: 15435.126 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Xenopus laevis (African clawed frog) / Gene: LOC121398065, LOC108703785, LOC121398067 / Production host: Escherichia coli (E. coli) / References: UniProt: A0A310TTQ1
#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
#3: Protein Histone H2A


Mass: 14083.398 Da / Num. of mol.: 2 / Mutation: K119C
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Xenopus laevis (African clawed frog) / Gene: LOC494591, h2ac14.L, hist1h2aj, hist1h2aj.L / Production host: Escherichia coli (E. coli) / References: UniProt: Q6AZJ8
#4: Protein Histone H2B


Mass: 13913.190 Da / Num. of mol.: 2 / Mutation: K121C
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Xenopus laevis (African clawed frog) / Gene: LOC108704304 / Production host: Escherichia coli (E. coli) / References: UniProt: A0A8J0TWI5
#7: Protein Polycomb complex protein BMI-1 / Polycomb group RING finger protein 4 / RING finger protein 51


Mass: 37006.062 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: BMI1, PCGF4, RNF51 / Production host: Homo sapiens (human) / References: UniProt: P35226
#8: Protein E3 ubiquitin-protein ligase RING2 / Huntingtin-interacting protein 2-interacting protein 3 / HIP2-interacting protein 3 / Protein DinG ...Huntingtin-interacting protein 2-interacting protein 3 / HIP2-interacting protein 3 / Protein DinG / RING finger protein 1B / RING1b / RING finger protein 2 / RING finger protein BAP-1 / RING-type E3 ubiquitin transferase RING2


Mass: 37706.371 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: RNF2, BAP1, DING, HIPI3, RING1B / Production host: Homo sapiens (human)
References: UniProt: Q99496, RING-type E3 ubiquitin transferase
#9: Protein Ubiquitin


Mass: 8622.922 Da / Num. of mol.: 2 / 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
#10: 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: Homo sapiens (human) / References: UniProt: Q8N488

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DNA chain , 2 types, 2 molecules IJ

#5: DNA chain DNA (132-MER)


Mass: 40499.816 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)
#6: DNA chain DNA (132-MER)


Mass: 40980.105 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, 5 molecules

#11: Chemical
ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 5 / 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: ncPRC1.4-NCP_H2BK120ub&H2AK119ub complex_1 RNF2-BMI1 & 1 RYBP
Type: COMPLEX
Details: The ncPRC1.4 complex containing one RNF2-BMI1 and one RYBP bound to the H2AK119ubH2BK120ub-modified nucleosome
Entity ID: #1-#10 / Source: RECOMBINANT
Source (natural)
IDEntity assembly-IDOrganismNcbi tax-ID
21Homo sapiens (human)9606
31Xenopus laevis (African clawed frog)8355
Source (recombinant)
IDEntity assembly-IDOrganismNcbi tax-ID
21Homo sapiens (human)9606
31Escherichia coli (E. coli)562
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: TFS KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 3000 nm / Nominal defocus min: 800 nm
Image recordingElectron dose: 50 e/Å2 / Film or detector model: GATAN K3 (6k x 4k)

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Processing

CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 3.8 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 9928 / Symmetry type: POINT
RefinementCross valid method: NONE
Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2
Displacement parametersBiso mean: 88.44 Å2
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.002615219
ELECTRON MICROSCOPYf_angle_d0.492621677
ELECTRON MICROSCOPYf_chiral_restr0.03312490
ELECTRON MICROSCOPYf_plane_restr0.00331825
ELECTRON MICROSCOPYf_dihedral_angle_d28.27133905

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