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Yorodumi- EMDB-20512: Cryo-EM structure of MLL1 in complex with RbBP5 and WDR5 bound to... -
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Basic information
| Entry | Database: EMDB / ID: EMD-20512 | |||||||||
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| Title | Cryo-EM structure of MLL1 in complex with RbBP5 and WDR5 bound to the nucleosome | |||||||||
Map data | MLL1 in complex with RbBP5 and WDR5 | |||||||||
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Keywords | Mixed-Lineage Leukemia / MLL1 / nucleosome / histone H3 Lys4 methyltransferase / RbBP5 / WDR5 / HISTONE BINDING-DNA BINDING-DNA complex | |||||||||
| Function / homology | Function and homology informationnegative regulation of DNA methylation-dependent heterochromatin formation / protein-cysteine methyltransferase activity / [histone H3]-lysine4 N-methyltransferase / histone H3K4 monomethyltransferase activity / response to potassium ion / unmethylated CpG binding / histone H3K4 trimethyltransferase activity / histone H3Q5ser reader activity / histone H3K4me1 reader activity / Epigenetic regulation of gene expression by MLL3 and MLL4 complexes ...negative regulation of DNA methylation-dependent heterochromatin formation / protein-cysteine methyltransferase activity / [histone H3]-lysine4 N-methyltransferase / histone H3K4 monomethyltransferase activity / response to potassium ion / unmethylated CpG binding / histone H3K4 trimethyltransferase activity / histone H3Q5ser reader activity / histone H3K4me1 reader activity / Epigenetic regulation of gene expression by MLL3 and MLL4 complexes / MLL3/4 complex / Set1C/COMPASS complex / MLL1/2 complex / definitive hemopoiesis / ATAC complex / regulation of short-term neuronal synaptic plasticity / NSL complex / histone H3K4 methyltransferase activity / Cardiogenesis / anterior/posterior pattern specification / embryonic hemopoiesis / T-helper 2 cell differentiation / endosomal transport / Formation of WDR5-containing histone-modifying complexes / exploration behavior / histone methyltransferase complex / minor groove of adenine-thymine-rich DNA binding / regulation of cell division / hemopoiesis / MLL1 complex / regulation of embryonic development / histone acetyltransferase complex / membrane depolarization / cellular response to transforming growth factor beta stimulus / negative regulation of fibroblast proliferation / spleen development / positive regulation of gluconeogenesis / homeostasis of number of cells within a tissue / transcription initiation-coupled chromatin remodeling / Transferases; Transferring one-carbon groups; Methyltransferases / gluconeogenesis / post-embryonic development / skeletal system development / Deactivation of the beta-catenin transactivating complex / circadian regulation of gene expression / trans-Golgi network / Formation of the beta-catenin:TCF transactivating complex / RUNX1 regulates genes involved in megakaryocyte differentiation and platelet function / beta-catenin binding / visual learning / protein modification process / PKMTs methylate histone lysines / response to estrogen / RMTs methylate histone arginines / Activation of anterior HOX genes in hindbrain development during early embryogenesis / Transcriptional regulation of granulopoiesis / mitotic spindle / structural constituent of chromatin / nucleosome / heterochromatin formation / nucleosome assembly / Neddylation / HATs acetylate histones / RUNX1 regulates transcription of genes involved in differentiation of HSCs / MLL4 and MLL3 complexes regulate expression of PPARG target genes in adipogenesis and hepatic steatosis / protein-containing complex assembly / fibroblast proliferation / histone binding / methylation / transcription cis-regulatory region binding / regulation of cell cycle / protein heterodimerization activity / positive regulation of cell population proliferation / apoptotic process / DNA damage response / chromatin binding / regulation of DNA-templated transcription / regulation of transcription by RNA polymerase II / positive regulation of DNA-templated transcription / nucleolus / negative regulation of transcription by RNA polymerase II / Golgi apparatus / protein homodimerization activity / positive regulation of transcription by RNA polymerase II / DNA binding / zinc ion binding / nucleoplasm / identical protein binding / nucleus / cytosol Similarity search - Function | |||||||||
| Biological species | Homo sapiens (human) / synthetic construct (others) | |||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 6.2 Å | |||||||||
Authors | Park SH / Ayoub A | |||||||||
| Funding support | United States, Korea, Republic Of, 2 items
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Citation | Journal: Nat Commun / Year: 2019Title: 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. | |||||||||
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Structure visualization
| Movie |
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| Structure viewer | EM map: SurfView Molmil Jmol/JSmol |
| Supplemental images |
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Downloads & links
-EMDB archive
| Map data | emd_20512.map.gz | 7.5 MB | EMDB map data format | |
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| Header (meta data) | emd-20512-v30.xml emd-20512.xml | 23.5 KB 23.5 KB | Display Display | EMDB header |
| FSC (resolution estimation) | emd_20512_fsc.xml | 14.6 KB | Display | FSC data file |
| Images | emd_20512.png | 59.9 KB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-20512 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-20512 | HTTPS FTP |
-Validation report
| Summary document | emd_20512_validation.pdf.gz | 362.9 KB | Display | EMDB validaton report |
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| Full document | emd_20512_full_validation.pdf.gz | 362.4 KB | Display | |
| Data in XML | emd_20512_validation.xml.gz | 12.8 KB | Display | |
| Data in CIF | emd_20512_validation.cif.gz | 17.3 KB | Display | |
| Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-20512 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-20512 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 6pwvMC ![]() 6pwwC ![]() 6pwxC 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 | EMDB (EBI/PDBe) / EMDataResource |
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| Related items in Molecule of the Month |
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Map
| File | Download / File: emd_20512.map.gz / Format: CCP4 / Size: 163.6 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Annotation | MLL1 in complex with RbBP5 and WDR5 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 : Human MLL1 complex bound to the nucleosome
+Supramolecule #1: Human MLL1 complex bound to the nucleosome
+Macromolecule #1: Retinoblastoma-binding protein 5
+Macromolecule #2: WD repeat-containing protein 5
+Macromolecule #3: Histone-lysine N-methyltransferase 2A
+Macromolecule #4: Histone H3.2
+Macromolecule #5: Histone H4
+Macromolecule #6: Histone H2A type 1
+Macromolecule #7: Histone H2B 1.1
+Macromolecule #10: Protein dpy-30 homolog
+Macromolecule #11: Set1/Ash2 histone methyltransferase complex subunit ASH2
+Macromolecule #8: DNA (147-MER)
+Macromolecule #9: DNA (147-MER)
+Macromolecule #12: S-ADENOSYL-L-HOMOCYSTEINE
+Macromolecule #13: ZINC ION
-Experimental details
-Structure determination
| Method | cryo EM |
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Processing | single particle reconstruction |
| 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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| Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Average electron dose: 64.0 e/Å2 |
| Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
| Electron optics | Illumination mode: OTHER / Imaging mode: BRIGHT FIELD |
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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About Yorodumi


Keywords
Homo sapiens (human)
Authors
United States,
Korea, Republic Of, 2 items
Citation
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