+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-11888 | ||||||||||||
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Title | Recombinant human gTuRC | ||||||||||||
Map data | Consensus map | ||||||||||||
Sample |
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Function / homology | Function and homology information microtubule nucleation by interphase microtubule organizing center / gamma-tubulin complex localization / positive regulation of norepinephrine uptake / equatorial microtubule organizing center / cellular response to cytochalasin B / bBAF complex / mitotic spindle microtubule / gamma-tubulin ring complex / interphase microtubule organizing center / npBAF complex ...microtubule nucleation by interphase microtubule organizing center / gamma-tubulin complex localization / positive regulation of norepinephrine uptake / equatorial microtubule organizing center / cellular response to cytochalasin B / bBAF complex / mitotic spindle microtubule / gamma-tubulin ring complex / interphase microtubule organizing center / npBAF complex / postsynaptic actin cytoskeleton organization / regulation of transepithelial transport / brahma complex / polar microtubule / nBAF complex / structural constituent of postsynaptic actin cytoskeleton / gamma-tubulin complex / morphogenesis of a polarized epithelium / Formation of annular gap junctions / meiotic spindle organization / GBAF complex / Gap junction degradation / postsynaptic actin cytoskeleton / protein localization to adherens junction / regulation of G0 to G1 transition / dense body / Cell-extracellular matrix interactions / Tat protein binding / Folding of actin by CCT/TriC / regulation of double-strand break repair / microtubule nucleation / regulation of nucleotide-excision repair / RSC-type complex / apical protein localization / Prefoldin mediated transfer of substrate to CCT/TriC / adherens junction assembly / non-motile cilium / RHOF GTPase cycle / gamma-tubulin binding / Adherens junctions interactions / tight junction / Sensory processing of sound by outer hair cells of the cochlea / SWI/SNF complex / Interaction between L1 and Ankyrins / Sensory processing of sound by inner hair cells of the cochlea / regulation of mitotic metaphase/anaphase transition / regulation of norepinephrine uptake / positive regulation of double-strand break repair / positive regulation of T cell differentiation / microtubule organizing center / NuA4 histone acetyltransferase complex / regulation of synaptic vesicle endocytosis / apical junction complex / maintenance of blood-brain barrier / establishment or maintenance of cell polarity / cortical cytoskeleton / positive regulation of double-strand break repair via homologous recombination / positive regulation of stem cell population maintenance / pericentriolar material / nitric-oxide synthase binding / single fertilization / Recycling pathway of L1 / regulation of cyclin-dependent protein serine/threonine kinase activity / cell leading edge / regulation of G1/S transition of mitotic cell cycle / mitotic sister chromatid segregation / negative regulation of cell differentiation / brush border / kinesin binding / calyx of Held / EPH-ephrin mediated repulsion of cells / mitotic spindle assembly / RHO GTPases Activate WASPs and WAVEs / spindle assembly / RHO GTPases activate IQGAPs / positive regulation of myoblast differentiation / cytoplasmic microtubule / regulation of protein localization to plasma membrane / cytoplasmic microtubule organization / Loss of Nlp from mitotic centrosomes / Loss of proteins required for interphase microtubule organization from the centrosome / Recruitment of mitotic centrosome proteins and complexes / Recruitment of NuMA to mitotic centrosomes / EPHB-mediated forward signaling / Anchoring of the basal body to the plasma membrane / substantia nigra development / centriole / axonogenesis / AURKA Activation by TPX2 / mitotic spindle organization / ciliary basal body / meiotic cell cycle / negative regulation of protein binding / condensed nuclear chromosome / actin filament / cell motility / RHO GTPases Activate Formins / Translocation of SLC2A4 (GLUT4) to the plasma membrane / regulation of transmembrane transporter activity / positive regulation of cell differentiation Similarity search - Function | ||||||||||||
Biological species | Homo sapiens (human) | ||||||||||||
Method | single particle reconstruction / cryo EM / Resolution: 4.13 Å | ||||||||||||
Authors | Serna M / Fernandez-Leiro R / Llorca O | ||||||||||||
Funding support | Spain, 3 items
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Citation | Journal: Sci Adv / Year: 2020 Title: Assembly of the asymmetric human γ-tubulin ring complex by RUVBL1-RUVBL2 AAA ATPase. Authors: Fabian Zimmermann / Marina Serna / Artur Ezquerra / Rafael Fernandez-Leiro / Oscar Llorca / Jens Luders / Abstract: The microtubule nucleator γ-tubulin ring complex (γTuRC) is essential for the function of microtubule organizing centers such as the centrosome. Since its discovery over two decades ago, γTuRC has ...The microtubule nucleator γ-tubulin ring complex (γTuRC) is essential for the function of microtubule organizing centers such as the centrosome. Since its discovery over two decades ago, γTuRC has evaded in vitro reconstitution and thus detailed structure-function studies. Here, we show that a complex of RuvB-like protein 1 (RUVBL1) and RUVBL2 "RUVBL" controls assembly and composition of γTuRC in human cells. Likewise, RUVBL assembles γTuRC from a minimal set of core subunits in a heterologous coexpression system. RUVBL interacts with γTuRC subcomplexes but is not part of fully assembled γTuRC. Purified, reconstituted γTuRC has nucleation activity and resembles native γTuRC as revealed by its cryo-electron microscopy (cryo-EM) structure at ~4.0-Å resolution. We further use cryo-EM to identify features that determine the intricate, higher-order γTuRC architecture. Our work finds RUVBL as an assembly factor that regulates γTuRC in cells and allows production of recombinant γTuRC for future in-depth mechanistic studies. | ||||||||||||
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
-Related structure data
Related structure data | 7as4MC M: atomic model generated by this map C: citing same article (ref.) |
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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_11888.map.gz / Format: CCP4 / Size: 226.3 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Annotation | Consensus map | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.40862 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
+Additional map: Subvolume positions 1 to 3 half map 2
+Additional map: Subvolume positions 5 to 7 half map 1
+Additional map: Subvolume positions 4 to 6 half map 2
+Additional map: Subvolume positions 5 to 7
+Additional map: Subvolume positions 5 to 7 half map 2
+Additional map: Subvolume positions 4 to 6 half map 1
+Additional map: Subvolume positions 4 to 6
+Additional map: Subvolume positions 9 to 11 half map 1
+Additional map: Subvolume positions 9 to 11 half map 2
+Additional map: Subvolume positions 9 to 11
+Additional map: Subvolume positions 8 to 10 half map 2
+Additional map: Subvolume positions 1 to 3 half map 1
+Additional map: Subvolume positions 7 to 9 half map 1
+Additional map: Subvolume positions 7 to 9 half map 2
+Additional map: Subvolume positions 8 to 10
+Additional map: Subvolume positions 8 to 10 half map 1
+Additional map: Subvolume positions 6 to 8 half map 2
+Additional map: Subvolume positions 6 to 8
+Additional map: Subvolume positions 6 to 8 half map 1
+Additional map: Subvolume positions 7 to 9
+Additional map: Subvolume positions 11 to 14 half map 1
+Additional map: Subvolume positions 11 to 14 half map 2
+Additional map: Subvolume positions 1 to 3
+Additional map: Subvolume positions 11 to 14
+Additional map: Subvolume positions 10 to 12 half map 2
+Additional map: Subvolume positions 10 to 12 half map 1
+Additional map: Subvolume positions 10 to 12
+Additional map: Subvolume luminal bridge half map 2
+Additional map: Subvolume luminal bridge
+Additional map: Subvolume luminal bridge half map 1
+Additional map: Subvolume positions 2 to 4
+Additional map: Subvolume positions 2 to 4 half map 2
+Additional map: Subvolume positions 2 to 4 half map 1
+Additional map: Subvolume positions 3 to 5 half map 1
+Additional map: Subvolume positions 3 to 5
+Additional map: Subvolume positions 3 to 5 half map 2
+Half map: Consensus half map 2
+Half map: Consensus half map 1
-Sample components
+Entire : Recombinant human gamma-tubulin ring complex
+Supramolecule #1: Recombinant human gamma-tubulin ring complex
+Macromolecule #1: Tubulin gamma-1 chain
+Macromolecule #2: Gamma-tubulin complex component 3
+Macromolecule #3: Gamma-tubulin complex component 6
+Macromolecule #4: Mitotic-spindle organizing protein 1
+Macromolecule #5: Actin, cytoplasmic 1
+Macromolecule #6: Gamma-tubulin complex component 2
+Macromolecule #7: Gamma-tubulin complex component 4
+Macromolecule #8: Gamma-tubulin complex component 5
+Macromolecule #9: GUANOSINE-5'-DIPHOSPHATE
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 7.5 |
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Vitrification | Cryogen name: ETHANE |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELDBright-field microscopy |
Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 58.0 e/Å2 |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |