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- PDB-6kiu: Cryo-EM structure of human MLL1-ubNCP complex (3.2 angstrom) -

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Entry
Database: PDB / ID: 6kiu
TitleCryo-EM structure of human MLL1-ubNCP complex (3.2 angstrom)
Components
  • (DNA (145-MER)) x 2
  • Histone H2A
  • Histone H2B 1.1
  • Histone H3
  • Histone H4
  • Histone-lysine N-methyltransferase 2A
  • Retinoblastoma-binding protein 5
  • Set1/Ash2 histone methyltransferase complex subunit ASH2
  • Ubiquitin
  • WD repeat-containing protein 5
KeywordsTRANSCRIPTION/DNA / histone modification / nucleosome / MLL / TRANSCRIPTION / TRANSCRIPTION-DNA complex
Function / homology
Function and homology information


protein-cysteine methyltransferase activity / response to potassium ion / [histone H3]-lysine4 N-methyltransferase / histone H3K4 monomethyltransferase activity / unmethylated CpG binding / histone H3K4 trimethyltransferase activity / negative regulation of DNA methylation-dependent heterochromatin formation / MLL3/4 complex / regulation of short-term neuronal synaptic plasticity / Set1C/COMPASS complex ...protein-cysteine methyltransferase activity / response to potassium ion / [histone H3]-lysine4 N-methyltransferase / histone H3K4 monomethyltransferase activity / unmethylated CpG binding / histone H3K4 trimethyltransferase activity / negative regulation of DNA methylation-dependent heterochromatin formation / MLL3/4 complex / regulation of short-term neuronal synaptic plasticity / Set1C/COMPASS complex / MLL1/2 complex / T-helper 2 cell differentiation / definitive hemopoiesis / ATAC complex / NSL complex / histone H3K4 methyltransferase activity / Cardiogenesis / Formation of the ternary complex, and subsequently, the 43S complex / embryonic hemopoiesis / exploration behavior / anterior/posterior pattern specification / Translation initiation complex formation / Ribosomal scanning and start codon recognition / histone methyltransferase complex / regulation of tubulin deacetylation / Formation of WDR5-containing histone-modifying complexes / regulation of cell division / SARS-CoV-1 modulates host translation machinery / Peptide chain elongation / minor groove of adenine-thymine-rich DNA binding / membrane depolarization / Selenocysteine synthesis / Formation of a pool of free 40S subunits / regulation of embryonic development / Eukaryotic Translation Termination / Response of EIF2AK4 (GCN2) to amino acid deficiency / hemopoiesis / MLL1 complex / SRP-dependent cotranslational protein targeting to membrane / transcription factor TFIID complex / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / Viral mRNA Translation / RNA polymerase II general transcription initiation factor activity / L13a-mediated translational silencing of Ceruloplasmin expression / GTP hydrolysis and joining of the 60S ribosomal subunit / histone acetyltransferase complex / Major pathway of rRNA processing in the nucleolus and cytosol / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / cytosolic ribosome / negative regulation of fibroblast proliferation / Maturation of protein E / Maturation of protein E / homeostasis of number of cells within a tissue / ER Quality Control Compartment (ERQC) / positive regulation of gluconeogenesis / spleen development / Myoclonic epilepsy of Lafora / FLT3 signaling by CBL mutants / transcription initiation-coupled chromatin remodeling / Prevention of phagosomal-lysosomal fusion / IRAK2 mediated activation of TAK1 complex / Alpha-protein kinase 1 signaling pathway / Glycogen synthesis / cellular response to transforming growth factor beta stimulus / IRAK1 recruits IKK complex / IRAK1 recruits IKK complex upon TLR7/8 or 9 stimulation / Membrane binding and targetting of GAG proteins / 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 / NOTCH2 Activation and Transmission of Signal to the Nucleus / TICAM1-dependent activation of IRF3/IRF7 / methylated histone binding / APC/C:Cdc20 mediated degradation of Cyclin B / p75NTR recruits signalling complexes / Downregulation of ERBB4 signaling / APC-Cdc20 mediated degradation of Nek2A / PINK1-PRKN Mediated Mitophagy / TRAF6-mediated induction of TAK1 complex within TLR4 complex / TRAF6 mediated IRF7 activation in TLR7/8 or 9 signaling / Pexophagy / Regulation of innate immune responses to cytosolic DNA / InlA-mediated entry of Listeria monocytogenes into host cells / VLDLR internalisation and degradation / Downregulation of ERBB2:ERBB3 signaling / NF-kB is activated and signals survival / NRIF signals cell death from the nucleus / Regulation of PTEN localization / Activated NOTCH1 Transmits Signal to the Nucleus / Regulation of BACH1 activity / Translesion synthesis by REV1 / Synthesis of active ubiquitin: roles of E1 and E2 enzymes / Translesion synthesis by POLK / MAP3K8 (TPL2)-dependent MAPK1/3 activation / TICAM1, RIP1-mediated IKK complex recruitment / Downregulation of TGF-beta receptor signaling
Similarity search - Function
: / ASH2, PHD zinc finger / Set1/Ash2 histone methyltransferase complex subunit ASH2-like, WH / Histone methyltransferase complex subunit ASH2 / SPRY domain / Retinoblastoma-binding protein 5/Swd1 / KMT2A, ePHD domain / KMT2A, PHD domain 1 / KMT2A, PHD domain 2 / KMT2A, PHD domain 3 ...: / ASH2, PHD zinc finger / Set1/Ash2 histone methyltransferase complex subunit ASH2-like, WH / Histone methyltransferase complex subunit ASH2 / SPRY domain / Retinoblastoma-binding protein 5/Swd1 / KMT2A, ePHD domain / KMT2A, PHD domain 1 / KMT2A, PHD domain 2 / KMT2A, PHD domain 3 / Methyltransferase, trithorax / : / FY-rich, N-terminal / F/Y-rich N-terminus / PHD-like zinc-binding domain / FYR domain FYRN motif profile. / "FY-rich" domain, N-terminal region / FY-rich, C-terminal / F/Y rich C-terminus / FYR domain FYRC motif profile. / "FY-rich" domain, C-terminal region / CXXC zinc finger domain / Zinc finger, CXXC-type / Zinc finger CXXC-type profile. / Cysteine-rich motif following a subset of SET domains / Post-SET domain / Post-SET domain profile. / Histone, subunit A / Histone, subunit A / SPRY domain / B30.2/SPRY domain / B30.2/SPRY domain profile. / SPRY domain / B30.2/SPRY domain superfamily / Domain in SPla and the RYanodine Receptor. / SET (Su(var)3-9, Enhancer-of-zeste, Trithorax) domain / SET domain superfamily / SET domain / Extended PHD (ePHD) domain / Extended PHD (ePHD) domain profile. / SET domain profile. / SET domain / YVTN repeat-like/Quinoprotein amine dehydrogenase / S27a-like superfamily / Ribosomal protein S27a / Ribosomal protein S27a / Ribosomal protein S27a / 7 Propeller / Methylamine Dehydrogenase; Chain H / PHD-finger / Zinc finger PHD-type signature. / 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 / Histone H4, conserved site / Histone H4 signature. / Histone H4 / Histone H4 / TATA box binding protein associated factor / TATA box binding protein associated factor (TAF), histone-like fold domain / CENP-T/Histone H4, histone fold / Centromere kinetochore component CENP-T histone fold / Zinc finger PHD-type profile. / Zinc finger, PHD-finger / Histone H3 signature 1. / Zinc finger, PHD-type / PHD zinc finger / Histone H3 signature 2. / Histone H3 / Histone H3/CENP-A / Histone H2A/H2B/H3 / Core histone H2A/H2B/H3/H4 / Ubiquitin domain signature. / Ubiquitin conserved site / Ubiquitin domain / Zinc finger, FYVE/PHD-type / Histone-fold / Ubiquitin family / Ubiquitin homologues / Bromodomain profile. / bromo domain / Bromodomain / Bromodomain-like superfamily / Ubiquitin domain profile. / Ubiquitin-like domain / Concanavalin A-like lectin/glucanase domain superfamily / Zinc-binding ribosomal protein / G-protein beta WD-40 repeat / Zinc finger, RING/FYVE/PHD-type / Ubiquitin-like domain superfamily / WD40 repeat, conserved site / Trp-Asp (WD) repeats signature. / Trp-Asp (WD) repeats profile. / Trp-Asp (WD) repeats circular profile.
Similarity search - Domain/homology
GLUTAMINE / LYSINE / S-ADENOSYL-L-HOMOCYSTEINE / DNA / DNA (> 10) / DNA (> 100) / Histone H3 / Histone H2B 1.1 / Histone H2A type 1 / WD repeat-containing protein 5 ...GLUTAMINE / LYSINE / S-ADENOSYL-L-HOMOCYSTEINE / DNA / DNA (> 10) / DNA (> 100) / Histone H3 / Histone H2B 1.1 / Histone H2A type 1 / WD repeat-containing protein 5 / Histone H4 / Ubiquitin-ribosomal protein eS31 fusion protein / Histone H3.2 / Histone-lysine N-methyltransferase 2A / Retinoblastoma-binding protein 5 / Histone H2A / Set1/Ash2 histone methyltransferase complex subunit ASH2
Similarity search - Component
Biological speciesXenopus laevis (African clawed frog)
Homo sapiens (human)
synthetic construct (others)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.2 Å
AuthorsHuang, J. / Xue, H. / Yao, T.
Funding support China, 1items
OrganizationGrant numberCountry
National Science Foundation (China) China
CitationJournal: Nature / Year: 2019
Title: Structural basis of nucleosome recognition and modification by MLL methyltransferases.
Authors: Han Xue / Tonghui Yao / Mi Cao / Guanjun Zhu / Yan Li / Guiyong Yuan / Yong Chen / Ming Lei / Jing Huang /
Abstract: Methyltransferases of the mixed-lineage leukaemia (MLL) family-which include MLL1, MLL2, MLL3, MLL4, SET1A and SET1B-implement methylation of histone H3 on lysine 4 (H3K4), and have critical and ...Methyltransferases of the mixed-lineage leukaemia (MLL) family-which include MLL1, MLL2, MLL3, MLL4, SET1A and SET1B-implement methylation of histone H3 on lysine 4 (H3K4), and have critical and distinct roles in the regulation of transcription in haematopoiesis, adipogenesis and development. The C-terminal catalytic SET (Su(var.)3-9, enhancer of zeste and trithorax) domains of MLL proteins are associated with a common set of regulatory factors (WDR5, RBBP5, ASH2L and DPY30) to achieve specific activities. Current knowledge of the regulation of MLL activity is limited to the catalysis of histone H3 peptides, and how H3K4 methyl marks are deposited on nucleosomes is poorly understood. H3K4 methylation is stimulated by mono-ubiquitination of histone H2B on lysine 120 (H2BK120ub1), a prevalent histone H2B mark that disrupts chromatin compaction and favours open chromatin structures, but the underlying mechanism remains unknown. Here we report cryo-electron microscopy structures of human MLL1 and MLL3 catalytic modules associated with nucleosome core particles that contain H2BK120ub1 or unmodified H2BK120. These structures demonstrate that the MLL1 and MLL3 complexes both make extensive contacts with the histone-fold and DNA regions of the nucleosome; this allows ease of access to the histone H3 tail, which is essential for the efficient methylation of H3K4. The H2B-conjugated ubiquitin binds directly to RBBP5, orienting the association between MLL1 or MLL3 and the nucleosome. The MLL1 and MLL3 complexes display different structural organizations at the interface between the WDR5, RBBP5 and MLL1 (or the corresponding MLL3) subunits, which accounts for the opposite roles of WDR5 in regulating the activity of the two enzymes. These findings transform our understanding of the structural basis for the regulation of MLL activity at the nucleosome level, and highlight the pivotal role of nucleosome regulation in histone-tail modification.
History
DepositionJul 20, 2019Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Sep 11, 2019Provider: repository / Type: Initial release
Revision 1.1Sep 18, 2019Group: Data collection / Database references / Category: citation / Item: _citation.pdbx_database_id_PubMed / _citation.title
Revision 1.2Oct 2, 2019Group: Data collection / Database references / Category: citation
Item: _citation.journal_volume / _citation.page_first / _citation.page_last
Revision 1.3Nov 6, 2019Group: Data collection / Other / Category: cell / Item: _cell.Z_PDB
Revision 1.4Mar 27, 2024Group: Data collection / Database references / Category: chem_comp_atom / chem_comp_bond / database_2
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession

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Structure visualization

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Assembly

Deposited unit
A: Histone H3
B: Histone H4
C: Histone H2A
D: Histone H2B 1.1
E: Histone H3
F: Histone H4
G: Histone H2A
H: Histone H2B 1.1
I: DNA (145-MER)
J: DNA (145-MER)
K: Histone-lysine N-methyltransferase 2A
N: Retinoblastoma-binding protein 5
R: WD repeat-containing protein 5
T: Set1/Ash2 histone methyltransferase complex subunit ASH2
O: Ubiquitin
hetero molecules


Theoretical massNumber of molelcules
Total (without water)388,08719
Polymers387,34315
Non-polymers7434
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: cross-linking
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

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Protein , 9 types, 13 molecules AEBFCGDHKNRTO

#1: Protein Histone H3


Mass: 15303.930 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Xenopus laevis (African clawed frog) / Gene: XELAEV_18002543mg / Production host: Escherichia coli (E. coli) / References: UniProt: A0A310TTQ1, UniProt: P84233*PLUS
#2: Protein Histone H4


Mass: 11263.231 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: 13978.241 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Xenopus laevis (African clawed frog) / Gene: hist1h2aj, LOC494591, XELAEV_18003602mg / Production host: Escherichia coli (E. coli) / References: UniProt: Q6AZJ8, UniProt: P06897*PLUS
#4: Protein Histone H2B 1.1 / H2B1.1


Mass: 13498.715 Da / Num. of mol.: 2 / Mutation: S29T/K117T
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
#7: Protein Histone-lysine N-methyltransferase 2A / Lysine N-methyltransferase 2A / ALL-1 / CXXC-type zinc finger protein 7 / Myeloid/lymphoid or mixed- ...Lysine N-methyltransferase 2A / ALL-1 / CXXC-type zinc finger protein 7 / Myeloid/lymphoid or mixed-lineage leukemia / Myeloid/lymphoid or mixed-lineage leukemia protein 1 / Trithorax-like protein / Zinc finger protein HRX


Mass: 24970.539 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: KMT2A, ALL1, CXXC7, HRX, HTRX, MLL, MLL1, TRX1 / Production host: Escherichia coli (E. coli)
References: UniProt: Q03164, histone-lysine N-methyltransferase
#8: Protein Retinoblastoma-binding protein 5 / RBBP-5 / Retinoblastoma-binding protein RBQ-3


Mass: 59223.477 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: RBBP5, RBQ3 / Production host: Escherichia coli (E. coli) / References: UniProt: Q15291
#9: Protein WD repeat-containing protein 5 / BMP2-induced 3-kb gene protein


Mass: 36635.438 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: WDR5, BIG3 / Production host: Escherichia coli (E. coli) / References: UniProt: P61964
#10: Protein Set1/Ash2 histone methyltransferase complex subunit ASH2 / ASH2-like protein


Mass: 60288.758 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: ASH2L, ASH2L1 / Production host: Escherichia coli (E. coli) / References: UniProt: Q9UBL3
#11: 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: RPS27A, UBA80, UBCEP1 / Production host: Escherichia coli (E. coli) / References: UniProt: P62979

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DNA chain , 2 types, 2 molecules IJ

#5: DNA chain DNA (145-MER)


Mass: 44521.367 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others)
#6: DNA chain DNA (145-MER)


Mass: 44992.648 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others)

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Non-polymers , 4 types, 4 molecules

#12: Chemical ChemComp-SAH / S-ADENOSYL-L-HOMOCYSTEINE


Type: L-peptide linking / Mass: 384.411 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C14H20N6O5S
#13: Chemical ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Zn
#14: Chemical ChemComp-LYS / LYSINE


Type: L-peptide linking / Mass: 147.195 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C6H15N2O2
#15: Chemical ChemComp-GLN / GLUTAMINE


Type: L-peptide linking / Mass: 146.144 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C5H10N2O3

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Details

Has ligand of interestN

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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

Component
IDNameTypeEntity IDParent-IDSource
1Human MLL1 complex associated with an H2B-monoubiquitinated nucleosome (3.2 angstrom)COMPLEX#1-#110MULTIPLE SOURCES
2Human MLL1COMPLEX#7-#111RECOMBINANT
3H2B-monoubiquitinated nucleosomeCOMPLEX#1-#61MULTIPLE SOURCES
Source (natural)
IDEntity assembly-IDOrganismNcbi tax-ID
12Homo sapiens (human)9606
23Xenopus laevis (African clawed frog)8355
Source (recombinant)
IDEntity assembly-IDOrganismNcbi tax-ID
12Escherichia coli (E. coli)562
23Escherichia 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: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD
Image recordingElectron dose: 50 e/Å2 / Film or detector model: GATAN K3 (6k x 4k)

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Processing

Software
NameVersionClassification
phenix.real_space_refine1.13_2998refinement
PHENIX1.13_2998refinement
CTF correctionType: PHASE FLIPPING ONLY
SymmetryPoint symmetry: C1 (asymmetric)
3D reconstructionResolution: 3.2 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 139535 / Symmetry type: POINT
RefinementStereochemistry target values: GeoStd + Monomer Library
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.007121497
ELECTRON MICROSCOPYf_angle_d0.838630289
ELECTRON MICROSCOPYf_chiral_restr0.05233405
ELECTRON MICROSCOPYf_plane_restr0.00722832
ELECTRON MICROSCOPYf_dihedral_angle_d18.504511901

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