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Open data
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Basic information
Entry | Database: PDB / ID: 8qr1 | ||||||
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Title | Cryo-EM structure of the human Tip60 complex | ||||||
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![]() | TRANSCRIPTION / Eukaryotic transcription / Histone acetyltransferase / chromatin remodeling / Complex | ||||||
Function / homology | ![]() piccolo histone acetyltransferase complex / promoter-enhancer loop anchoring activity / telomerase RNA localization to Cajal body / regulation of DNA strand elongation / positive regulation of telomere maintenance in response to DNA damage / positive regulation of norepinephrine uptake / histone chaperone activity / sperm DNA condensation / establishment of protein localization to chromatin / cellular response to cytochalasin B ...piccolo histone acetyltransferase complex / promoter-enhancer loop anchoring activity / telomerase RNA localization to Cajal body / regulation of DNA strand elongation / positive regulation of telomere maintenance in response to DNA damage / positive regulation of norepinephrine uptake / histone chaperone activity / sperm DNA condensation / establishment of protein localization to chromatin / cellular response to cytochalasin B / R2TP complex / bBAF complex / npBAF complex / dynein axonemal particle / regulation of transepithelial transport / nBAF complex / brahma complex / morphogenesis of a polarized epithelium / Swr1 complex / protein antigen binding / neural retina development / protein localization to adherens junction / postsynaptic actin cytoskeleton / structural constituent of postsynaptic actin cytoskeleton / Formation of annular gap junctions / GBAF complex / Gap junction degradation / Tat protein binding / regulation of G0 to G1 transition / RPAP3/R2TP/prefoldin-like complex / Folding of actin by CCT/TriC / Cell-extracellular matrix interactions / dense body / chromatin-protein adaptor activity / Ino80 complex / regulation of nucleotide-excision repair / regulation of double-strand break repair / Prefoldin mediated transfer of substrate to CCT/TriC / RSC-type complex / apical protein localization / box C/D snoRNP assembly / blastocyst formation / adherens junction assembly / RHOF GTPase cycle / Adherens junctions interactions / tight junction / Sensory processing of sound by outer hair cells of the cochlea / protein folding chaperone complex / enzyme-substrate adaptor activity / Interaction between L1 and Ankyrins / SWI/SNF complex / regulation of mitotic metaphase/anaphase transition / Sensory processing of sound by inner hair cells of the cochlea / positive regulation of T cell differentiation / regulation of norepinephrine uptake / apical junction complex / nitric-oxide synthase binding / Formation of Senescence-Associated Heterochromatin Foci (SAHF) / positive regulation of double-strand break repair / regulation of cyclin-dependent protein serine/threonine kinase activity / maintenance of blood-brain barrier / spinal cord development / regulation of chromosome organization / NuA4 histone acetyltransferase complex / negative regulation of gene expression, epigenetic / establishment or maintenance of cell polarity / cortical cytoskeleton / spermatid development / RUNX1 interacts with co-factors whose precise effect on RUNX1 targets is not known / positive regulation of stem cell population maintenance / Transcriptional Regulation by E2F6 / Regulation of MITF-M-dependent genes involved in pigmentation / regulation of synaptic vesicle endocytosis / Recycling pathway of L1 / regulation of G1/S transition of mitotic cell cycle / TFIID-class transcription factor complex binding / regulation of DNA replication / brush border / regulation of embryonic development / MLL1 complex / kinesin binding / somatic stem cell population maintenance / Telomere Extension By Telomerase / negative regulation of cell differentiation / EPH-ephrin mediated repulsion of cells / RHO GTPases Activate WASPs and WAVEs / positive regulation of myoblast differentiation / RHO GTPases activate IQGAPs / positive regulation of double-strand break repair via homologous recombination / regulation of DNA repair / regulation of protein localization to plasma membrane / RNA polymerase II core promoter sequence-specific DNA binding / DNA helicase activity / Deposition of new CENPA-containing nucleosomes at the centromere / TBP-class protein binding / EPHB-mediated forward signaling / substantia nigra development / calyx of Held / telomere maintenance / transcription initiation-coupled chromatin remodeling Similarity search - Function | ||||||
Biological species | ![]() | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.4 Å | ||||||
![]() | Li, C. / Smirnova, E. / Schnitzler, C. / Crucifix, C. / Concordet, J.P. / Brion, A. / Poterszman, A. / Schultz, P. / Papai, G. / Ben-Shem, A. | ||||||
Funding support | ![]()
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![]() | ![]() Title: Structure of the human TIP60-C histone exchange and acetyltransferase complex. Authors: Changqing Li / Ekaterina Smirnova / Charlotte Schnitzler / Corinne Crucifix / Jean Paul Concordet / Alice Brion / Arnaud Poterszman / Patrick Schultz / Gabor Papai / Adam Ben-Shem / ![]() Abstract: Chromatin structure is a key regulator of DNA transcription, replication and repair. In humans, the TIP60-EP400 complex (TIP60-C) is a 20-subunit assembly that affects chromatin structure through two ...Chromatin structure is a key regulator of DNA transcription, replication and repair. In humans, the TIP60-EP400 complex (TIP60-C) is a 20-subunit assembly that affects chromatin structure through two enzymatic activities: ATP-dependent exchange of histone H2A-H2B for H2A.Z-H2B, and histone acetylation. In yeast, however, these activities are performed by two independent complexes-SWR1 and NuA4, respectively. How the activities of the two complexes are merged into one supercomplex in humans, and what this association entails for the structure and mechanism of the proteins and their recruitment to chromatin, are unknown. Here we describe the structure of the endogenous human TIP60-C. We find a three-lobed architecture composed of SWR1-like (SWR1L) and NuA4-like (NuA4L) parts, which associate with a TRRAP activator-binding module. The huge EP400 subunit contains the ATPase motor, traverses the junction between SWR1L and NuA4L twice and constitutes the scaffold of the three-lobed architecture. NuA4L is completely rearranged compared with its yeast counterpart. TRRAP is flexibly tethered to NuA4L-in stark contrast to its robust connection to the completely opposite side of NuA4 in yeast. A modelled nucleosome bound to SWR1L, supported by tests of TIP60-C activity, suggests that some aspects of the histone exchange mechanism diverge from what is seen in yeast. Furthermore, a fixed actin module (as opposed to the mobile actin subcomplex in SWR1; ref. ), the flexibility of TRRAP and the weak effect of extranucleosomal DNA on exchange activity lead to a different, activator-based mode of enlisting TIP60-C to chromatin. | ||||||
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 1 MB | Display | ![]() |
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PDB format | ![]() | Display | ![]() | |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
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-Validation report
Summary document | ![]() | 974.3 KB | Display | ![]() |
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Full document | ![]() | 986.7 KB | Display | |
Data in XML | ![]() | 113.9 KB | Display | |
Data in CIF | ![]() | 184.5 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 18611MC ![]() 8qriC C: citing same article ( M: map data used to model this data |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
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Assembly
Deposited unit | ![]()
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Components
-Protein , 8 types, 13 molecules ACFSBGKLIEHDJ
#1: Protein | Mass: 343867.312 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() References: UniProt: Q96L91, Hydrolases; Acting on acid anhydrides; Acting on acid anhydrides to facilitate cellular and subcellular movement | ||||||
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#2: Protein | Mass: 93589.172 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() | ||||||
#3: Protein | Mass: 53090.699 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() | ||||||
#4: Protein | Mass: 40658.363 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() | ||||||
#5: Protein | Mass: 41782.660 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() #6: Protein | | Mass: 47509.812 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() #7: Protein | Mass: 50296.914 Da / Num. of mol.: 3 / Source method: isolated from a natural source / Source: (natural) ![]() #8: Protein | Mass: 51222.465 Da / Num. of mol.: 3 / Source method: isolated from a natural source / Source: (natural) ![]() |
-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
Component | Name: Tip60 complex / Type: CELL / Entity ID: all / Source: NATURAL | ||||||||||||||||||||||||||||||||
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Source (natural) | Organism: ![]() | ||||||||||||||||||||||||||||||||
Buffer solution | pH: 8 | ||||||||||||||||||||||||||||||||
Buffer component |
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Specimen | Conc.: 0.2 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||||||||||||||||||||||
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 95 % / Chamber temperature: 279 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: ![]() | ||||||||||||
Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2800 nm / Nominal defocus min: 1200 nm / Cs: 2.7 mm / Alignment procedure: COMA FREE | ||||||||||||
Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER | ||||||||||||
Image recording |
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Processing
EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||
Particle selection | Num. of particles selected: 284286 | ||||||||||||||||||||||||||||||
3D reconstruction | Resolution: 2.4 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 180397 / Symmetry type: POINT | ||||||||||||||||||||||||||||||
Atomic model building | Protocol: RIGID BODY FIT / Space: REAL |