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Open data
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Basic information
Entry | Database: EMDB / ID: EMD-20514 | |||||||||
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Title | Cryo-EM structure of RbBP5 bound to the nucleosome | |||||||||
![]() | RbBP5 bound to the nucleosome | |||||||||
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![]() | Mixed-Lineage Leukemia / ![]() ![]() ![]() ![]() | |||||||||
Function / homology | ![]() MLL3/4 complex / Set1C/COMPASS complex / MLL1/2 complex / ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Similarity search - Function | |||||||||
Biological species | ![]() ![]() ![]() ![]() | |||||||||
Method | ![]() ![]() | |||||||||
![]() | Park SH / Ayoub A | |||||||||
Funding support | ![]() ![]()
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![]() | ![]() Title: Cryo-EM structure of the human MLL1 core complex bound to the nucleosome. Authors: Sang Ho Park / Alex Ayoub / Young-Tae Lee / Jing Xu / Hanseong Kim / Wei Zheng / Biao Zhang / Liang Sha / Sojin An / Yang Zhang / Michael A Cianfrocco / Min Su / Yali Dou / Uhn-Soo Cho / ![]() Abstract: Mixed lineage leukemia (MLL) family histone methyltransferases are enzymes that deposit histone H3 Lys4 (K4) mono-/di-/tri-methylation and regulate gene expression in mammals. Despite extensive ...Mixed lineage leukemia (MLL) family histone methyltransferases are enzymes that deposit histone H3 Lys4 (K4) mono-/di-/tri-methylation and regulate gene expression in mammals. Despite extensive structural and biochemical studies, the molecular mechanisms whereby the MLL complexes recognize histone H3K4 within nucleosome core particles (NCPs) remain unclear. Here we report the single-particle cryo-electron microscopy (cryo-EM) structure of the NCP-bound human MLL1 core complex. We show that the MLL1 core complex anchors to the NCP via the conserved RbBP5 and ASH2L, which interact extensively with nucleosomal DNA and the surface close to the N-terminal tail of histone H4. Concurrent interactions of RbBP5 and ASH2L with the NCP uniquely align the catalytic MLL1 domain at the nucleosome dyad, thereby facilitating symmetrical access to both H3K4 substrates within the NCP. Our study sheds light on how the MLL1 complex engages chromatin and how chromatin binding promotes MLL1 tri-methylation activity. | |||||||||
History |
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Structure visualization
Movie |
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Structure viewer | EM map: ![]() ![]() ![]() |
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 7.9 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 17.5 KB 17.5 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 14.6 KB | Display | ![]() |
Images | ![]() | 52.8 KB | ||
Filedesc metadata | ![]() | 6.6 KB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 6pwxMC ![]() 6pwvC ![]() 6pwwC M: atomic model generated by this map C: citing same article ( |
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Similar structure data |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
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Annotation | RbBP5 bound to the nucleosome | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.01 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
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Sample components
-Entire : RbBP5 in complex with the nucleosome
Entire | Name: RbBP5 in complex with the nucleosome![]() |
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Components |
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-Supramolecule #1: RbBP5 in complex with the nucleosome
Supramolecule | Name: RbBP5 in complex with the nucleosome / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all |
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Source (natural) | Organism: ![]() ![]() |
-Macromolecule #1: Retinoblastoma-binding protein 5
Macromolecule | Name: Retinoblastoma-binding protein 5 / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 59.179359 KDa |
Recombinant expression | Organism: ![]() ![]() ![]() |
Sequence | String: SNLELLESFG QNYPEEADGT LDCISMALTC TFNRWGTLLA VGCNDGRIVI WDFLTRGIAK IISAHIHPVC SLCWSRDGHK LVSASTDNI VSQWDVLSGD CDQRFRFPSP ILKVQYHPRD QNKVLVCPMK SAPVMLTLSD SKHVVLPVDD DSDLNVVASF D RRGEYIYT ...String: SNLELLESFG QNYPEEADGT LDCISMALTC TFNRWGTLLA VGCNDGRIVI WDFLTRGIAK IISAHIHPVC SLCWSRDGHK LVSASTDNI VSQWDVLSGD CDQRFRFPSP ILKVQYHPRD QNKVLVCPMK SAPVMLTLSD SKHVVLPVDD DSDLNVVASF D RRGEYIYT GNAKGKILVL KTDSQDLVAS FRVTTGTSNT TAIKSIEFAR KGSCFLINTA DRIIRVYDGR EILTCGRDGE PE PMQKLQD LVNRTPWKKC CFSGDGEYIV AGSARQHALY IWEKSIGNLV KILHGTRGEL LLDVAWHPVR PIIASISSGV VSI WAQNQV ENWSAFAPDF KELDENVEYE ERESEFDIED EDKSEPEQTG ADAAEDEEVD VTSVDPIAAF CSSDEELEDS KALL YLPIA PEVEDPEENP YGPPPDAVQT SLMDEGASSE KKRQSSADGS QPPKKKPKTT NIELQGVPND EVHPLLGVKG DGKSK KKQA GRPKGSKGKE KDSPFKPKLY KGDRGLPLEG SAKGKVQAEL SQPLTAGGAI SELL UniProtKB: Retinoblastoma-binding protein 5 |
-Macromolecule #2: Histone H3.2
Macromolecule | Name: Histone H3.2 / type: protein_or_peptide / ID: 2 / Number of copies: 2 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 15.435126 KDa |
Recombinant expression | Organism: ![]() ![]() ![]() |
Sequence | String: MARTKQTARK STGGKAPRKQ LATKAARKSA PATGGVKKPH RYRPGTVALR EIRRYQKSTE LLIRKLPFQR LVREIAQDFK TDLRFQSSA VMALQEASEA YLVALFEDTN LCAIHAKRVT IMPKDIQLAR RIRGERA UniProtKB: Histone H3.2 |
-Macromolecule #3: Histone H4
Macromolecule | Name: Histone H4 / type: protein_or_peptide / ID: 3 / Number of copies: 2 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 11.394426 KDa |
Recombinant expression | Organism: ![]() ![]() ![]() |
Sequence | String: MSGRGKGGKG LGKGGAKRHR KVLRDNIQGI TKPAIRRLAR RGGVKRISGL IYEETRGVLK VFLENVIRDA VTYTEHAKRK TVTAMDVVY ALKRQGRTLY GFGG UniProtKB: ![]() |
-Macromolecule #4: Histone H2A type 1
Macromolecule | Name: Histone H2A type 1 / type: protein_or_peptide / ID: 4 / Number of copies: 2 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 13.978241 KDa |
Recombinant expression | Organism: ![]() ![]() ![]() |
Sequence | String: SGRGKQGGKT RAKAKTRSSR AGLQFPVGRV HRLLRKGNYA ERVGAGAPVY LAAVLEYLTA EILELAGNAA RDNKKTRIIP RHLQLAVRN DEELNKLLGR VTIAQGGVLP NIQSVLLPKK TESSKSAKSK UniProtKB: Histone H2A type 1 |
-Macromolecule #5: Histone H2B 1.1
Macromolecule | Name: Histone H2B 1.1 / type: protein_or_peptide / ID: 5 / Number of copies: 2 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 13.655948 KDa |
Recombinant expression | Organism: ![]() ![]() ![]() |
Sequence | String: MAKSAPAPKK GSKKAVTKTQ KKDGKKRRKT RKESYAIYVY KVLKQVHPDT GISSKAMSIM NSFVNDVFER IAGEASRLAH YNKRSTITS REIQTAVRLL LPGELAKHAV SEGTKAVTKY TSAK UniProtKB: Histone H2B 1.1 |
-Macromolecule #6: DNA (146-MER)
Macromolecule | Name: DNA (146-MER) / type: dna / ID: 6 / Number of copies: 1 / Classification: DNA |
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Source (natural) | Organism: synthetic construct (others) |
Molecular weight | Theoretical: 45.13877 KDa |
Sequence | String: (DA)(DT)(DC)(DG)(DA)(DG)(DA)(DA)(DT)(DC) (DC)(DC)(DG)(DG)(DT)(DG)(DC)(DC)(DG)(DA) (DG)(DG)(DC)(DC)(DG)(DC)(DT)(DC)(DA) (DA)(DT)(DT)(DG)(DG)(DT)(DC)(DG)(DT)(DA) (DG) (DA)(DC)(DA)(DG)(DC)(DT) ...String: (DA)(DT)(DC)(DG)(DA)(DG)(DA)(DA)(DT)(DC) (DC)(DC)(DG)(DG)(DT)(DG)(DC)(DC)(DG)(DA) (DG)(DG)(DC)(DC)(DG)(DC)(DT)(DC)(DA) (DA)(DT)(DT)(DG)(DG)(DT)(DC)(DG)(DT)(DA) (DG) (DA)(DC)(DA)(DG)(DC)(DT)(DC)(DT) (DA)(DG)(DC)(DA)(DC)(DC)(DG)(DC)(DT)(DT) (DA)(DA) (DA)(DC)(DG)(DC)(DA)(DC)(DG) (DT)(DA)(DC)(DG)(DC)(DG)(DC)(DT)(DG)(DT) (DC)(DC)(DC) (DC)(DC)(DG)(DC)(DG)(DT) (DT)(DT)(DT)(DA)(DA)(DC)(DC)(DG)(DC)(DC) (DA)(DA)(DG)(DG) (DG)(DG)(DA)(DT)(DT) (DA)(DC)(DT)(DC)(DC)(DC)(DT)(DA)(DG)(DT) (DC)(DT)(DC)(DC)(DA) (DG)(DG)(DC)(DA) (DC)(DG)(DT)(DG)(DT)(DC)(DA)(DG)(DA)(DT) (DA)(DT)(DA)(DT)(DA)(DC) (DA)(DT)(DC) (DC)(DG)(DA)(DT) |
-Macromolecule #7: DNA (146-MER)
Macromolecule | Name: DNA (146-MER) / type: dna / ID: 7 / Number of copies: 1 / Classification: DNA |
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Source (natural) | Organism: synthetic construct (others) |
Molecular weight | Theoretical: 45.610043 KDa |
Sequence | String: (DA)(DT)(DC)(DG)(DG)(DA)(DT)(DG)(DT)(DA) (DT)(DA)(DT)(DA)(DT)(DC)(DT)(DG)(DA)(DC) (DA)(DC)(DG)(DT)(DG)(DC)(DC)(DT)(DG) (DG)(DA)(DG)(DA)(DC)(DT)(DA)(DG)(DG)(DG) (DA) (DG)(DT)(DA)(DA)(DT)(DC) ...String: (DA)(DT)(DC)(DG)(DG)(DA)(DT)(DG)(DT)(DA) (DT)(DA)(DT)(DA)(DT)(DC)(DT)(DG)(DA)(DC) (DA)(DC)(DG)(DT)(DG)(DC)(DC)(DT)(DG) (DG)(DA)(DG)(DA)(DC)(DT)(DA)(DG)(DG)(DG) (DA) (DG)(DT)(DA)(DA)(DT)(DC)(DC)(DC) (DC)(DT)(DT)(DG)(DG)(DC)(DG)(DG)(DT)(DT) (DA)(DA) (DA)(DA)(DC)(DG)(DC)(DG)(DG) (DG)(DG)(DG)(DA)(DC)(DA)(DG)(DC)(DG)(DC) (DG)(DT)(DA) (DC)(DG)(DT)(DG)(DC)(DG) (DT)(DT)(DT)(DA)(DA)(DG)(DC)(DG)(DG)(DT) (DG)(DC)(DT)(DA) (DG)(DA)(DG)(DC)(DT) (DG)(DT)(DC)(DT)(DA)(DC)(DG)(DA)(DC)(DC) (DA)(DA)(DT)(DT)(DG) (DA)(DG)(DC)(DG) (DG)(DC)(DC)(DT)(DC)(DG)(DG)(DC)(DA)(DC) (DC)(DG)(DG)(DG)(DA)(DT) (DT)(DC)(DT) (DC)(DG)(DA)(DT) |
-Experimental details
-Structure determination
Method | ![]() |
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Aggregation state | particle |
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Sample preparation
Buffer | pH: 7.5 |
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Grid | Details: unspecified |
Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277.15 K |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: OTHER / Imaging mode: BRIGHT FIELD![]() |
Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Average electron dose: 64.0 e/Å2 |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |