+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-10446 | ||||||||||||
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Title | SAGA-TBP filtered to show the position of the DUB domain | ||||||||||||
Map data | |||||||||||||
Sample |
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Keywords | Transcriptional co-activator / Histone-acetylation / TRANSCRIPTION | ||||||||||||
Function / homology | Function and homology information RITS complex assembly / SAGA-type complex / DUBm complex / regulation of primary metabolic process / positive regulation of DNA-templated transcription initiation / TFIIA-class transcription factor complex binding / regulatory ncRNA-mediated heterochromatin formation / transcription factor TFIIIB complex / RNA polymerase III preinitiation complex assembly / RNA polymerase III transcription regulatory region sequence-specific DNA binding ...RITS complex assembly / SAGA-type complex / DUBm complex / regulation of primary metabolic process / positive regulation of DNA-templated transcription initiation / TFIIA-class transcription factor complex binding / regulatory ncRNA-mediated heterochromatin formation / transcription factor TFIIIB complex / RNA polymerase III preinitiation complex assembly / RNA polymerase III transcription regulatory region sequence-specific DNA binding / transcription export complex 2 / post-transcriptional tethering of RNA polymerase II gene DNA at nuclear periphery / nuclear mRNA surveillance / regulation of transcription by RNA polymerase III / RNA polymerase I general transcription initiation factor binding / SLIK (SAGA-like) complex / transcription factor TFIIA complex / RNA polymerase I preinitiation complex assembly / hypothalamus gonadotrophin-releasing hormone neuron development / SAGA complex / female meiosis I / DNA binding, bending / positive regulation of protein monoubiquitination / poly(A)+ mRNA export from nucleus / fat pad development / mitochondrion transport along microtubule / RNA Polymerase III Transcription Initiation From Type 2 Promoter / RNA polymerase II transcribes snRNA genes / transcription factor TFIID complex / RNA Polymerase II Promoter Escape / RNA Polymerase II Transcription Pre-Initiation And Promoter Opening / RNA Polymerase II Transcription Initiation / RNA Polymerase II Transcription Initiation And Promoter Clearance / RNA polymerase II general transcription initiation factor activity / RNA Polymerase II Pre-transcription Events / female gonad development / seminiferous tubule development / male meiosis I / RNA Polymerase I Promoter Escape / nucleolar large rRNA transcription by RNA polymerase I / positive regulation of intrinsic apoptotic signaling pathway by p53 class mediator / Estrogen-dependent gene expression / protein deubiquitination / RNA polymerase II core promoter sequence-specific DNA binding / nuclear pore / regulation of neuron apoptotic process / regulation of proteasomal protein catabolic process / RNA polymerase II preinitiation complex assembly / energy homeostasis / Maturation of protein E / Maturation of protein E / ER Quality Control Compartment (ERQC) / enzyme activator activity / Myoclonic epilepsy of Lafora / FLT3 signaling by CBL mutants / Prevention of phagosomal-lysosomal fusion / IRAK2 mediated activation of TAK1 complex / Alpha-protein kinase 1 signaling pathway / Glycogen synthesis / IRAK1 recruits IKK complex / IRAK1 recruits IKK complex upon TLR7/8 or 9 stimulation / Regulation of TBK1, IKKε (IKBKE)-mediated activation of IRF3, IRF7 / Regulation of TBK1, IKKε-mediated activation of IRF3, IRF7 upon TLR3 ligation / Membrane binding and targetting of GAG proteins / Endosomal Sorting Complex Required For Transport (ESCRT) / IRAK2 mediated activation of TAK1 complex upon TLR7/8 or 9 stimulation / TICAM1,TRAF6-dependent induction of TAK1 complex / Negative regulation of FLT3 / TBP-class protein binding / PTK6 Regulates RTKs and Their Effectors AKT1 and DOK1 / Constitutive Signaling by NOTCH1 HD Domain Mutants / TICAM1-dependent activation of IRF3/IRF7 / NOTCH2 Activation and Transmission of Signal to the Nucleus / Regulation of FZD by ubiquitination / APC/C:Cdc20 mediated degradation of Cyclin B / Downregulation of ERBB4 signaling / p75NTR recruits signalling complexes / APC-Cdc20 mediated degradation of Nek2A / TRAF6 mediated IRF7 activation in TLR7/8 or 9 signaling / TRAF6-mediated induction of TAK1 complex within TLR4 complex / Regulation of innate immune responses to cytosolic DNA / InlA-mediated entry of Listeria monocytogenes into host cells / Regulation of pyruvate metabolism / Downregulation of ERBB2:ERBB3 signaling / NF-kB is activated and signals survival / VLDLR internalisation and degradation / Pexophagy / NRIF signals cell death from the nucleus / Regulation of PTEN localization / Activated NOTCH1 Transmits Signal to the Nucleus / Regulation of BACH1 activity / Translesion synthesis by REV1 / Synthesis of active ubiquitin: roles of E1 and E2 enzymes / MAP3K8 (TPL2)-dependent MAPK1/3 activation / TICAM1, RIP1-mediated IKK complex recruitment / Translesion synthesis by POLK / neuron projection morphogenesis / Downregulation of TGF-beta receptor signaling / Activation of IRF3, IRF7 mediated by TBK1, IKKε (IKBKE) / Translesion synthesis by POLI Similarity search - Function | ||||||||||||
Biological species | Komagataella phaffii GS115 (fungus) / Homo sapiens (human) / Komagataella phaffii (strain GS115 / ATCC 20864) (fungus) | ||||||||||||
Method | single particle reconstruction / cryo EM / Resolution: 20.0 Å | ||||||||||||
Authors | Papai G / Frechard A | ||||||||||||
Funding support | France, 3 items
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Citation | Journal: Nature / Year: 2020 Title: Structure of SAGA and mechanism of TBP deposition on gene promoters. Authors: Gabor Papai / Alexandre Frechard / Olga Kolesnikova / Corinne Crucifix / Patrick Schultz / Adam Ben-Shem / Abstract: SAGA (Spt-Ada-Gcn5-acetyltransferase) is a 19-subunit complex that stimulates transcription via two chromatin-modifying enzymatic modules and by delivering the TATA box binding protein (TBP) to ...SAGA (Spt-Ada-Gcn5-acetyltransferase) is a 19-subunit complex that stimulates transcription via two chromatin-modifying enzymatic modules and by delivering the TATA box binding protein (TBP) to nucleate the pre-initiation complex on DNA, a pivotal event in the expression of protein-encoding genes. Here we present the structure of yeast SAGA with bound TBP. The core of the complex is resolved at 3.5 Å resolution (0.143 Fourier shell correlation). The structure reveals the intricate network of interactions that coordinate the different functional domains of SAGA and resolves an octamer of histone-fold domains at the core of SAGA. This deformed octamer deviates considerably from the symmetrical analogue in the nucleosome and is precisely tuned to establish a peripheral site for TBP, where steric hindrance represses binding of spurious DNA. Complementary biochemical analysis points to a mechanism for TBP delivery and release from SAGA that requires transcription factor IIA and whose efficiency correlates with the affinity of DNA to TBP. We provide the foundations for understanding the specific delivery of TBP to gene promoters and the multiple roles of SAGA in regulating gene expression. | ||||||||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | EM map: SurfViewMolmilJmol/JSmol |
Supplemental images |
-Downloads & links
-EMDB archive
Map data | emd_10446.map.gz | 53.2 MB | EMDB map data format | |
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Header (meta data) | emd-10446-v30.xml emd-10446.xml | 45.9 KB 45.9 KB | Display Display | EMDB header |
Images | emd_10446.png | 82.5 KB | ||
Filedesc metadata | emd-10446.cif.gz | 13.9 KB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-10446 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-10446 | HTTPS FTP |
-Validation report
Summary document | emd_10446_validation.pdf.gz | 381.9 KB | Display | EMDB validaton report |
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Full document | emd_10446_full_validation.pdf.gz | 381.5 KB | Display | |
Data in XML | emd_10446_validation.xml.gz | 6.2 KB | Display | |
Data in CIF | emd_10446_validation.cif.gz | 7.2 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-10446 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-10446 | HTTPS FTP |
-Related structure data
Related structure data | 6tbmMC 6tb4C C: citing same article (ref.) M: atomic model generated by this map |
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Similar structure data |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_10446.map.gz / Format: CCP4 / Size: 64 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 2.18 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Sample components
+Entire : SAGA bound to TBP
+Supramolecule #1: SAGA bound to TBP
+Supramolecule #2: TATA-box binding protein (TBP)
+Supramolecule #3: SAGA component
+Supramolecule #4: Polyubiquitin-B
+Supramolecule #5: SAGA complex
+Macromolecule #1: TATA-box Binding Protein (TBP)
+Macromolecule #2: Transcriptional coactivator HFI1/ADA1
+Macromolecule #3: Subunit of SAGA histone acetyltransferase complex
+Macromolecule #4: Spt20
+Macromolecule #5: Subunit of the SAGA and SAGA-like transcriptional regulatory comp...
+Macromolecule #6: Subunit of the SAGA transcriptional regulatory complex, involved ...
+Macromolecule #7: Transcription initiation factor TFIID subunit 10
+Macromolecule #8: Subunit (61/68 kDa) of TFIID and SAGA complexes
+Macromolecule #9: Subunit (90 kDa) of TFIID and SAGA complexes
+Macromolecule #10: Subunit (60 kDa) of TFIID and SAGA complexes
+Macromolecule #11: Subunit (17 kDa) of TFIID and SAGA complexes, involved in RNA pol...
+Macromolecule #12: Transcription-associated protein
+Macromolecule #13: Transcriptional regulator involved in glucose repression of Gal4p...
+Macromolecule #14: Spt8
+Macromolecule #15: Polyubiquitin-B
+Macromolecule #16: Ubiquitin carboxyl-terminal hydrolase
+Macromolecule #17: SAGA-associated factor 11
+Macromolecule #18: Transcription and mRNA export factor SUS1
+Macromolecule #19: water
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Concentration | 0.4 mg/mL |
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Buffer | pH: 8 |
Vitrification | Cryogen name: ETHANE / Chamber humidity: 95 % / Chamber temperature: 283 K / Instrument: FEI VITROBOT MARK IV |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Specialist optics | Energy filter - Name: GIF Quantum LS / Energy filter - Slit width: 20 eV |
Image recording | Film or detector model: GATAN K2 QUANTUM (4k x 4k) / Detector mode: SUPER-RESOLUTION / Average exposure time: 8.0 sec. / Average electron dose: 52.8 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | C2 aperture diameter: 70.0 µm / Calibrated defocus max: 4.5 µm / Calibrated defocus min: 0.8 µm / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 0.01 mm / Nominal defocus max: 3.5 µm / Nominal defocus min: 1.5 µm / Nominal magnification: 105000 |
Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
+Image processing
-Atomic model buiding 1
Refinement | Protocol: OTHER |
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Output model | PDB-6tbm: |