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Open data
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Basic information
| Entry | Database: EMDB / ID: EMD-23739 | |||||||||
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| Title | Cryo-EM structure of MLL1-NCP (H3K4M) complex, mode02 | |||||||||
Map data | Mode02 | |||||||||
Sample |
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Keywords | MLL1-NCP / H3K4 methylation / TRANSFERASE / TRANSFERASE-DNA BINDING PROTEIN-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 / histone H3K4 trimethyltransferase activity / unmethylated CpG binding / histone H3Q5ser reader activity / histone H3K4me1 reader activity / Loss of Function of KMT2D in MLL4 Complex Formation in Kabuki Syndrome ...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 / histone H3K4 trimethyltransferase activity / unmethylated CpG binding / histone H3Q5ser reader activity / histone H3K4me1 reader activity / Loss of Function of KMT2D in MLL4 Complex Formation in Kabuki Syndrome / Epigenetic regulation of gene expression by MLL3 and MLL4 complexes / MLL3/4 complex / Set1C/COMPASS complex / definitive hemopoiesis / MLL1/2 complex / ATAC complex / regulation of short-term neuronal synaptic plasticity / NSL complex / histone H3K4 methyltransferase activity / Cardiogenesis / anterior/posterior pattern specification / T-helper 2 cell differentiation / embryonic hemopoiesis / Formation of WDR5-containing histone-modifying complexes / exploration behavior / histone methyltransferase complex / minor groove of adenine-thymine-rich DNA binding / hemopoiesis / MLL1 complex / regulation of embryonic development / regulation of cell division / histone acetyltransferase complex / membrane depolarization / cellular response to transforming growth factor beta stimulus / negative regulation of fibroblast proliferation / spleen development / homeostasis of number of cells within a tissue / positive regulation of gluconeogenesis / transcription initiation-coupled chromatin remodeling / sperm principal piece / Transferases; Transferring one-carbon groups; Methyltransferases / post-embryonic development / gluconeogenesis / skeletal system development / circadian regulation of gene expression / Deactivation of the beta-catenin transactivating complex / protein modification process / Formation of the beta-catenin:TCF transactivating complex / RUNX1 regulates genes involved in megakaryocyte differentiation and platelet function / beta-catenin binding / visual learning / PKMTs methylate histone lysines / response to estrogen / Activation of anterior HOX genes in hindbrain development during early embryogenesis / Transcriptional regulation of granulopoiesis / RMTs methylate histone arginines / mitotic spindle / structural constituent of chromatin / heterochromatin formation / nucleosome / nucleosome assembly / HATs acetylate histones / RUNX1 regulates transcription of genes involved in differentiation of HSCs / Neddylation / MLL4 and MLL3 complexes regulate expression of PPARG target genes in adipogenesis and hepatic steatosis / protein-containing complex assembly / fibroblast proliferation / histone binding / methylation / regulation of cell cycle / transcription cis-regulatory region binding / protein heterodimerization activity / apoptotic process / positive regulation of cell population proliferation / DNA damage response / chromatin binding / regulation of transcription by RNA polymerase II / regulation of DNA-templated transcription / positive regulation of DNA-templated transcription / nucleolus / negative regulation of transcription by RNA polymerase II / 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) / | |||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 4.02 Å | |||||||||
Authors | Park SH / Ayoub A | |||||||||
| Funding support | United States, 2 items
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Citation | Journal: Biochemistry / Year: 2022Title: Regulation of MLL1 Methyltransferase Activity in Two Distinct Nucleosome Binding Modes. Authors: Alex Ayoub / Sang Ho Park / Young-Tae Lee / Uhn-Soo Cho / Yali Dou / ![]() Abstract: Cryo-EM structures of the KMT2A/MLL1 core complex bound on nucleosome core particles (NCPs) suggest unusual rotational dynamics of the MLL1 complex approaching its physiological substrate. However, ...Cryo-EM structures of the KMT2A/MLL1 core complex bound on nucleosome core particles (NCPs) suggest unusual rotational dynamics of the MLL1 complex approaching its physiological substrate. However, the functional implication of such dynamics remains unclear. Here, we show that the MLL1 core complex also shows high rotational dynamics bound on the NCP carrying the catalytically inert histone H3 lysine 4 to methionine (K4M) mutation. There are two major binding modes of the MLL1 complex on the NCP. Importantly, disruption of only one of the binding modes compromised the overall MLL1 activity in an NCP-specific manner. We propose that the MLL1 core complex probably exists in an equilibrium of poised and active binding modes. The high rotational dynamics of the MLL1 complex on the NCP is a feature that can be exploited for loci-specific regulation of H3K4 methylation in higher eukaryotes. | |||||||||
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Structure visualization
| Movie |
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| Structure viewer | EM map: SurfView Molmil Jmol/JSmol |
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Downloads & links
-EMDB archive
| Map data | emd_23739.map.gz | 14.4 MB | EMDB map data format | |
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| Header (meta data) | emd-23739-v30.xml emd-23739.xml | 26.8 KB 26.8 KB | Display Display | EMDB header |
| FSC (resolution estimation) | emd_23739_fsc.xml | 16.1 KB | Display | FSC data file |
| Images | emd_23739.png | 64.1 KB | ||
| Filedesc metadata | emd-23739.cif.gz | 8 KB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-23739 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-23739 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 7mbnMC ![]() 7mbmC 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_23739.map.gz / Format: CCP4 / Size: 163.6 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Annotation | Mode02 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Voxel size | X=Y=Z: 1.06 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 : MLL1 in complex with RbBP5, WDR5, SET1, and ASH2L bound to the nu...
+Supramolecule #1: MLL1 in complex with RbBP5, WDR5, SET1, and ASH2L bound to the nu...
+Supramolecule #2: RbBP5, WDR5, SET1, and ASH2L
+Supramolecule #3: nucleosome
+Macromolecule #1: Retinoblastoma-binding protein 5
+Macromolecule #2: WD repeat-containing protein 5
+Macromolecule #3: Histone-lysine N-methyltransferase 2A
+Macromolecule #4: Set1/Ash2 histone methyltransferase complex subunit ASH2
+Macromolecule #5: Histone H3
+Macromolecule #6: Histone H4
+Macromolecule #7: Histone H2A
+Macromolecule #8: Histone H2B 1.1
+Macromolecule #9: DNA (146-MER)
+Macromolecule #10: DNA (146-MER)
-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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| Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277.15 K / Instrument: FEI VITROBOT MARK IV |
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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: 53.4 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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Image processing
-Atomic model buiding 1
| Refinement | Protocol: RIGID BODY FIT |
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| Output model | ![]() PDB-7mbn: |
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About Yorodumi



Keywords
Homo sapiens (human)
Authors
United States, 2 items
Citation
UCSF Chimera














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