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Yorodumi- EMDB-51019: Structure of the Open gamma-Tubulin Ring Complex from Pig Brain -
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Open data
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Basic information
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| Title | Structure of the Open gamma-Tubulin Ring Complex from Pig Brain | |||||||||
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Sample |
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Keywords | Tubulin Complex / STRUCTURAL PROTEIN | |||||||||
| Function / homology | Function and homology informationgamma-tubulin complex localization / Recruitment of mitotic centrosome proteins and complexes / microtubule nucleator activity / polar microtubule / gamma-tubulin complex / gamma-tubulin ring complex / meiotic spindle organization / microtubule nucleation / gamma-tubulin binding / Recruitment of NuMA to mitotic centrosomes ...gamma-tubulin complex localization / Recruitment of mitotic centrosome proteins and complexes / microtubule nucleator activity / polar microtubule / gamma-tubulin complex / gamma-tubulin ring complex / meiotic spindle organization / microtubule nucleation / gamma-tubulin binding / Recruitment of NuMA to mitotic centrosomes / pericentriolar material / mitotic sister chromatid segregation / spindle assembly / cytoplasmic microtubule / cytoplasmic microtubule organization / centriole / mitotic spindle organization / meiotic cell cycle / spindle microtubule / brain development / microtubule cytoskeleton organization / spindle / neuron migration / spindle pole / cell junction / mitotic cell cycle / microtubule binding / microtubule / calmodulin binding / ciliary basal body / centrosome / GTP binding / Golgi apparatus / nucleoplasm / nucleus / cytoplasm Similarity search - Function | |||||||||
| Biological species | ![]() Homo sapiens (human) | |||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 4.3 Å | |||||||||
Authors | Munoz-Hernandez H / Wieczorek M | |||||||||
| Funding support | Switzerland, 2 items
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Citation | Journal: Dev Cell / Year: 2024Title: Partial closure of the γ-tubulin ring complex by CDK5RAP2 activates microtubule nucleation. Authors: Yixin Xu / Hugo Muñoz-Hernández / Rościsław Krutyhołowa / Florina Marxer / Ferdane Cetin / Michal Wieczorek / ![]() Abstract: Microtubule nucleation is templated by the γ-tubulin ring complex (γ-TuRC), but its structure deviates from the geometry of α-/β-tubulin in the microtubule, explaining the complex's poor ...Microtubule nucleation is templated by the γ-tubulin ring complex (γ-TuRC), but its structure deviates from the geometry of α-/β-tubulin in the microtubule, explaining the complex's poor nucleating activity. Several proteins may activate the γ-TuRC, but the mechanisms underlying activation are not known. Here, we determined the structure of the porcine γ-TuRC purified using CDK5RAP2's centrosomin motif 1 (CM1). We identified an unexpected conformation of the γ-TuRC bound to multiple protein modules containing MZT2, GCP2, and CDK5RAP2, resulting in a long-range constriction of the γ-tubulin ring that brings it in closer agreement with the 13-protofilament microtubule. Additional CDK5RAP2 promoted γ-TuRC decoration and stimulated the microtubule-nucleating activities of the porcine γ-TuRC and a reconstituted, CM1-free human complex in single-molecule assays. Our results provide a structural mechanism for the control of microtubule nucleation by CM1 proteins and identify conformational transitions in the γ-TuRC that prime it for microtubule nucleation. | |||||||||
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Structure visualization
| Supplemental images |
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Downloads & links
-EMDB archive
| Map data | emd_51019.map.gz | 108 MB | EMDB map data format | |
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| Header (meta data) | emd-51019-v30.xml emd-51019.xml | 29.3 KB 29.3 KB | Display Display | EMDB header |
| FSC (resolution estimation) | emd_51019_fsc.xml | 12.7 KB | Display | FSC data file |
| Images | emd_51019.png | 74.5 KB | ||
| Filedesc metadata | emd-51019.cif.gz | 10.5 KB | ||
| Others | emd_51019_half_map_1.map.gz emd_51019_half_map_2.map.gz | 200.4 MB 200.4 MB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-51019 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-51019 | HTTPS FTP |
-Validation report
| Summary document | emd_51019_validation.pdf.gz | 1 MB | Display | EMDB validaton report |
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| Full document | emd_51019_full_validation.pdf.gz | 1 MB | Display | |
| Data in XML | emd_51019_validation.xml.gz | 21.8 KB | Display | |
| Data in CIF | emd_51019_validation.cif.gz | 28.5 KB | Display | |
| Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-51019 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-51019 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 9g3zMC ![]() 9g3xC ![]() 9g3yC ![]() 9g40C M: atomic model generated by this map C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
| EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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| Related items in Molecule of the Month |
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Map
| File | Download / File: emd_51019.map.gz / Format: CCP4 / Size: 216 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: 1.41333 Å | ||||||||||||||||||||||||||||||||||||
| Density |
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
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-Supplemental data
-Half map: #2
| File | emd_51019_half_map_1.map | ||||||||||||
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| Density Histograms |
-Half map: #1
| File | emd_51019_half_map_2.map | ||||||||||||
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| Density Histograms |
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Sample components
+Entire : Gamma-Tubulin Ring Complex from native pig brain
+Supramolecule #1: Gamma-Tubulin Ring Complex from native pig brain
+Macromolecule #1: Mitotic spindle organizing protein 1
+Macromolecule #2: Mitotic-spindle organizing protein 2A isoform X4
+Macromolecule #3: Tubulin gamma chain
+Macromolecule #4: CDK5 regulatory subunit-associated protein 2
+Macromolecule #5: Gamma-tubulin complex component 3
+Macromolecule #6: Gamma-tubulin complex component
+Macromolecule #7: Tubulin gamma complex associated protein 6
+Macromolecule #8: Gamma-tubulin complex component
+Macromolecule #9: Gamma-tubulin complex component
-Experimental details
-Structure determination
| Method | cryo EM |
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Processing | single particle reconstruction |
| Aggregation state | particle |
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Sample preparation
| Buffer | pH: 7.5 |
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| Grid | Model: Quantifoil R2/1 / Material: COPPER / Support film - Material: CARBON / Support film - topology: HOLEY |
| Vitrification | Cryogen name: ETHANE-PROPANE |
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Electron microscopy
| Microscope | TFS KRIOS |
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| Image recording | Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 55.0 e/Å2 |
| Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
| Electron optics | Illumination mode: SPOT SCAN / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.9 µm / Nominal defocus min: 0.9 µm |
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
-Atomic model buiding 1
| Refinement | Space: REAL / Protocol: BACKBONE TRACE |
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| Output model | ![]() PDB-9g3z: |
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About Yorodumi



Keywords
Homo sapiens (human)
Authors
Switzerland, 2 items
Citation


















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FIELD EMISSION GUN

