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Open data
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Basic information
| Entry | Database: PDB / ID: 6ltj | ||||||
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| Title | Structure of nucleosome-bound human BAF complex | ||||||
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Keywords | GENE REGULATION / Chromatin remodeler / Complex | ||||||
| Function / homology | Function and homology informationnegative regulation of myeloid progenitor cell differentiation / single stranded viral RNA replication via double stranded DNA intermediate / Positive Regulation of CDH1 Gene Transcription / positive regulation of glucose mediated signaling pathway / regulation of DNA strand elongation / positive regulation of telomere maintenance in response to DNA damage / positive regulation of norepinephrine uptake / Formation of the polybromo-BAF (pBAF) complex / Formation of the embryonic stem cell BAF (esBAF) complex / Formation of the canonical BAF (cBAF) complex ...negative regulation of myeloid progenitor cell differentiation / single stranded viral RNA replication via double stranded DNA intermediate / Positive Regulation of CDH1 Gene Transcription / positive regulation of glucose mediated signaling pathway / regulation of DNA strand elongation / positive regulation of telomere maintenance in response to DNA damage / positive regulation of norepinephrine uptake / Formation of the polybromo-BAF (pBAF) complex / Formation of the embryonic stem cell BAF (esBAF) complex / Formation of the canonical BAF (cBAF) complex / Formation of neuronal progenitor and neuronal BAF (npBAF and nBAF) / positive regulation of transcription of nucleolar large rRNA by RNA polymerase I / Regulation of CDH1 Function / bBAF complex / cellular response to cytochalasin B / Formation of the non-canonical BAF (ncBAF) complex / neural retina development / npBAF complex / brahma complex / nBAF complex / negative regulation of androgen receptor signaling pathway / blastocyst hatching / regulation of transepithelial transport / EGR2 and SOX10-mediated initiation of Schwann cell myelination / hepatocyte differentiation / N-acetyltransferase activity / histone H3K14ac reader activity / morphogenesis of a polarized epithelium / Formation of annular gap junctions / Formation of the dystrophin-glycoprotein complex (DGC) / structural constituent of postsynaptic actin cytoskeleton / Gap junction degradation / Folding of actin by CCT/TriC / GBAF complex / Cell-extracellular matrix interactions / regulation of G0 to G1 transition / protein localization to adherens junction / nucleosome array spacer activity / dense body / Tat protein binding / postsynaptic actin cytoskeleton / RNA polymerase I preinitiation complex assembly / Ino80 complex / Prefoldin mediated transfer of substrate to CCT/TriC / RSC-type complex / blastocyst formation / cellular response to fatty acid / host-mediated activation of viral transcription / XY body / ATP-dependent chromatin remodeler activity / regulation of double-strand break repair / regulation of nucleotide-excision repair / Adherens junctions interactions / RHOF GTPase cycle / adherens junction assembly / nucleosome disassembly / apical protein localization / germ cell nucleus / Sensory processing of sound by outer hair cells of the cochlea / Interaction between L1 and Ankyrins / regulation of mitotic metaphase/anaphase transition / tight junction / SWI/SNF complex / Sensory processing of sound by inner hair cells of the cochlea / positive regulation of T cell differentiation / nuclear androgen receptor binding / apical junction complex / nuclear chromosome / positive regulation of double-strand break repair / spinal cord development / regulation of chromosome organization / regulation of norepinephrine uptake / transporter regulator activity / maintenance of blood-brain barrier / positive regulation of stem cell population maintenance / NuA4 histone acetyltransferase complex / establishment or maintenance of cell polarity / RUNX1 interacts with co-factors whose precise effect on RUNX1 targets is not known / cortical cytoskeleton / Recycling pathway of L1 / Regulation of MITF-M-dependent genes involved in pigmentation / regulation of DNA replication / nitric-oxide synthase binding / brush border / regulation of G1/S transition of mitotic cell cycle / regulation of embryonic development / EPH-ephrin mediated repulsion of cells / histone H4K16ac reader activity / negative regulation of cell differentiation / RHO GTPases Activate WASPs and WAVEs / regulation of synaptic vesicle endocytosis / positive regulation of myoblast differentiation / kinesin binding / positive regulation of signal transduction by p53 class mediator / ATP-dependent activity, acting on DNA / positive regulation of Wnt signaling pathway / regulation of DNA repair / RHO GTPases activate IQGAPs / regulation of protein localization to plasma membrane / positive regulation of double-strand break repair via homologous recombination Similarity search - Function | ||||||
| Biological species | Homo sapiens (human) | ||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.7 Å | ||||||
Authors | He, S. / Wu, Z. / Tian, Y. / Yu, Z. / Yu, J. / Wang, X. / Li, J. / Liu, B. / Xu, Y. | ||||||
Citation | Journal: Science / Year: 2020Title: Structure of nucleosome-bound human BAF complex. Authors: Shuang He / Zihan Wu / Yuan Tian / Zishuo Yu / Jiali Yu / Xinxin Wang / Jie Li / Bijun Liu / Yanhui Xu / ![]() Abstract: Mammalian SWI/SNF family chromatin remodelers, BRG1/BRM-associated factor (BAF) and polybromo-associated BAF (PBAF), regulate chromatin structure and transcription, and their mutations are linked to ...Mammalian SWI/SNF family chromatin remodelers, BRG1/BRM-associated factor (BAF) and polybromo-associated BAF (PBAF), regulate chromatin structure and transcription, and their mutations are linked to cancers. The 3.7-angstrom-resolution cryo-electron microscopy structure of human BAF bound to the nucleosome reveals that the nucleosome is sandwiched by the base and the adenosine triphosphatase (ATPase) modules, which are bridged by the actin-related protein (ARP) module. The ATPase motor is positioned proximal to nucleosomal DNA and, upon ATP hydrolysis, engages with and pumps DNA along the nucleosome. The C-terminal α helix of SMARCB1, enriched in positively charged residues frequently mutated in cancers, mediates interactions with an acidic patch of the nucleosome. AT-rich interactive domain-containing protein 1A (ARID1A) and the SWI/SNF complex subunit SMARCC serve as a structural core and scaffold in the base module organization, respectively. Our study provides structural insights into subunit organization and nucleosome recognition of human BAF complex. | ||||||
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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 | 6ltj.cif.gz | 865.7 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb6ltj.ent.gz | 635.1 KB | Display | PDB format |
| PDBx/mmJSON format | 6ltj.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/lt/6ltj ftp://data.pdbj.org/pub/pdb/validation_reports/lt/6ltj | HTTPS FTP |
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-Related structure data
| Related structure data | ![]() 0974MC ![]() 0968C ![]() 0969C ![]() 0970C ![]() 0971C ![]() 0972C ![]() 0973C ![]() 6lthC 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 , 10 types, 15 molecules AEBFCGDHIJKLNOR
| #1: Protein | Mass: 15360.983 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() #2: Protein | Mass: 11394.426 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() #3: Protein | Mass: 13993.295 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() #4: Protein | Mass: 13873.086 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() #5: Protein | | Mass: 184923.828 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: SMARCA4 / Cell line (production host): HEK293T / Production host: Homo sapiens (human)References: UniProt: P51532, Hydrolases; Acting on acid anhydrides; Acting on acid anhydrides to facilitate cellular and subcellular movement #6: Protein | | Mass: 45236.273 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: ACTL6A, BAF53, BAF53A / Cell line (production host): HEK293T / Production host: Homo sapiens (human) / References: UniProt: O96019#7: Protein | | Mass: 41782.660 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: ACTB / Cell line (production host): HEK293T / Production host: Homo sapiens (human) / References: UniProt: P60709#8: Protein | | Mass: 142316.531 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: ARID1A, BAF250, BAF250A / Cell line (production host): HEK293T / Production host: Homo sapiens (human) / References: UniProt: O14497#10: Protein | Mass: 133048.109 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: SMARCC2 / Cell line (production host): HEK293T / Production host: Homo sapiens (human) / References: UniProt: Q8TAQ2#13: Protein | | Mass: 32781.926 Da / Num. of mol.: 1 / Fragment: UNP residues 1-100, UNP residues 209-391 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: DPF2, BAF45D / Cell line (production host): HEK293T / Production host: Homo sapiens (human) / References: UniProt: Q92785 |
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-SWI/SNF-related matrix-associated actin-dependent regulator of chromatin subfamily ... , 3 types, 3 molecules MPQ
| #9: Protein | Mass: 38015.094 Da / Num. of mol.: 1 / Fragment: UNP residues 1-113, UNP residues 172-385 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: SMARCB1, BAF47 / Cell line (production host): HEK293T / Production host: Homo sapiens (human) / References: UniProt: Q12824 |
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| #11: Protein | Mass: 58311.391 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: SMARCD1 / Cell line (production host): HEK293T / Production host: Homo sapiens (human) / References: UniProt: Q96GM5 |
| #12: Protein | Mass: 46710.371 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: SMARCE1 / Cell line (production host): HEK293T / Production host: Homo sapiens (human) / References: UniProt: Q969G3 |
-DNA chain , 2 types, 2 molecules XY
| #14: DNA chain | Mass: 36520.266 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Homo sapiens (human) |
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| #15: DNA chain | Mass: 36929.520 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Homo sapiens (human) |
-Non-polymers , 1 types, 1 molecules 
| #16: Chemical | ChemComp-ZN / |
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-Details
| Has ligand of interest | Y |
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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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| Molecular weight | Units: KILODALTONS/NANOMETER / Experimental value: NO | ||||||||||||||||||||||||
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| Buffer solution | pH: 8 | ||||||||||||||||||||||||
| Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||||||||||||||
| Specimen support | Grid material: GOLD / Grid mesh size: 300 divisions/in. / Grid type: Quantifoil R1.2/1.3 | ||||||||||||||||||||||||
| Vitrification | Cryogen name: ETHANE / Humidity: 100 % |
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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: FLOOD BEAM |
| Electron lens | Mode: OTHER |
| Image recording | Electron dose: 50 e/Å2 / Detector mode: SUPER-RESOLUTION / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
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Processing
| EM software | Name: RELION / Version: 3.0.8 / Category: 3D reconstruction |
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| CTF correction | Type: NONE |
| Symmetry | Point symmetry: C1 (asymmetric) |
| 3D reconstruction | Resolution: 3.7 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 320658 / Symmetry type: POINT |
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