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Open data
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Basic information
| Entry | Database: PDB / ID: 7mbn | ||||||||||||||||||||||||||||||||||||
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| Title | Cryo-EM structure of MLL1-NCP (H3K4M) complex, mode02 | ||||||||||||||||||||||||||||||||||||
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Keywords | TRANSFERASE/DNA BINDING PROTEIN/DNA / 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 / 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 / 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 / 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 / protein modification process / 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 / RUNX1 regulates transcription of genes involved in differentiation of HSCs / HATs acetylate histones / 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 / 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 / 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 | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.02 Å | ||||||||||||||||||||||||||||||||||||
Authors | Park, S.H. / Ayoub, A. / Lee, Y.T. / Dou, Y. / Cho, U. | ||||||||||||||||||||||||||||||||||||
| Funding support | United States, 2items
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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
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| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 7mbn.cif.gz | 603.7 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb7mbn.ent.gz | 441.9 KB | Display | PDB format |
| PDBx/mmJSON format | 7mbn.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 7mbn_validation.pdf.gz | 888.7 KB | Display | wwPDB validaton report |
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| Full document | 7mbn_full_validation.pdf.gz | 1004 KB | Display | |
| Data in XML | 7mbn_validation.xml.gz | 78.1 KB | Display | |
| Data in CIF | 7mbn_validation.cif.gz | 117.1 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/mb/7mbn ftp://data.pdbj.org/pub/pdb/validation_reports/mb/7mbn | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 23739MC ![]() 7mbmC M: map data used to model this data C: citing same article ( |
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| Similar structure data |
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Links
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Assembly
| Deposited unit | ![]()
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Components
-Protein , 8 types, 12 molecules ABCDGKHLIMJN
| #1: Protein | Mass: 59179.359 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: RBBP5, RBQ3 / Production host: ![]() | ||||||
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| #2: Protein | Mass: 34390.992 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: WDR5, BIG3 / Production host: ![]() | ||||||
| #3: Protein | Mass: 24141.732 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: ![]() References: UniProt: Q03164, [histone H3]-lysine4 N-trimethyltransferase | ||||||
| #4: Protein | Mass: 60244.641 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: ASH2L, ASH2L1 / Production host: ![]() | ||||||
| #5: Protein | Mass: 15437.144 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() #6: Protein | Mass: 11394.426 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() #7: Protein | Mass: 13978.241 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() #8: Protein | Mass: 13655.948 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() |
-DNA chain , 2 types, 2 molecules OP
| #9: DNA chain | Mass: 45138.770 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others) |
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| #10: DNA chain | Mass: 45610.043 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others) |
-Details
| Has protein modification | N |
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-Experimental details
-Experiment
| Experiment | Method: ELECTRON MICROSCOPY |
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| EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
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| Buffer solution | pH: 7.5 | ||||||||||||||||||||||||
| Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||||||||||||||
| Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 277.15 K |
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Electron microscopy imaging
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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| Microscopy | Model: FEI TITAN KRIOS |
| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: OTHER |
| Electron lens | Mode: BRIGHT FIELD |
| Image recording | Electron dose: 53.4 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
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Processing
| Software | Name: PHENIX / Version: 1.15.2_3472: / Classification: refinement | ||||||||||||||||||||||||
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| EM software | Name: PHENIX / Category: model refinement | ||||||||||||||||||||||||
| CTF correction | Type: PHASE FLIPPING ONLY | ||||||||||||||||||||||||
| 3D reconstruction | Resolution: 4.02 Å / Num. of particles: 30847 / Symmetry type: POINT | ||||||||||||||||||||||||
| Atomic model building | Protocol: RIGID BODY FIT | ||||||||||||||||||||||||
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About Yorodumi




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












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