+
Open data
-
Basic information
| Entry | ![]() | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Title | Kinesin-14 with AlF3 bound to 14 PF Microtubule | |||||||||||||||
Map data | ||||||||||||||||
Sample |
| |||||||||||||||
Keywords | Kinesin Motor Proteins / Force Production / Power Stroke Fluctuations / Motor Spring-like Element / Reversed Motility / Mechanochemical Coupling / Mechanical States / CELL CYCLE | |||||||||||||||
| Function / homology | Function and homology informationminus-end directed microtubule sliding / distributive segregation / regulation of mitotic spindle elongation / meiotic spindle assembly / Regulation of PLK1 Activity at G2/M Transition / Loss of Nlp from mitotic centrosomes / Loss of proteins required for interphase microtubule organization from the centrosome / Anchoring of the basal body to the plasma membrane / AURKA Activation by TPX2 / Recruitment of mitotic centrosome proteins and complexes ...minus-end directed microtubule sliding / distributive segregation / regulation of mitotic spindle elongation / meiotic spindle assembly / Regulation of PLK1 Activity at G2/M Transition / Loss of Nlp from mitotic centrosomes / Loss of proteins required for interphase microtubule organization from the centrosome / Anchoring of the basal body to the plasma membrane / AURKA Activation by TPX2 / Recruitment of mitotic centrosome proteins and complexes / mitotic spindle elongation / odontoblast differentiation / mitotic spindle microtubule / meiotic spindle organization / microtubule bundle formation / Neutrophil degranulation / regulation of mitotic spindle assembly / mitotic centrosome separation / spindle assembly involved in female meiosis / Microtubule-dependent trafficking of connexons from Golgi to the plasma membrane / Resolution of Sister Chromatid Cohesion / Hedgehog 'off' state / Cilium Assembly / Intraflagellar transport / COPI-dependent Golgi-to-ER retrograde traffic / Mitotic Prometaphase / Carboxyterminal post-translational modifications of tubulin / RHOH GTPase cycle / EML4 and NUDC in mitotic spindle formation / Sealing of the nuclear envelope (NE) by ESCRT-III / Kinesins / PKR-mediated signaling / Separation of Sister Chromatids / The role of GTSE1 in G2/M progression after G2 checkpoint / Aggrephagy / meiotic spindle / RHO GTPases activate IQGAPs / RHO GTPases Activate Formins / HSP90 chaperone cycle for steroid hormone receptors (SHR) in the presence of ligand / MHC class II antigen presentation / Recruitment of NuMA to mitotic centrosomes / minus-end-directed microtubule motor activity / spindle organization / COPI-mediated anterograde transport / regulation of synapse organization / nuclear envelope lumen / MHC class I protein binding / mitotic spindle assembly / mRNA transport / intercellular bridge / spindle assembly / mitotic spindle organization / chromosome segregation / structural constituent of cytoskeleton / Hydrolases; Acting on acid anhydrides; Acting on acid anhydrides to facilitate cellular and subcellular movement / microtubule cytoskeleton organization / spindle / cytoplasmic ribonucleoprotein granule / mitotic spindle / mitotic cell cycle / microtubule cytoskeleton / cell body / microtubule binding / Hydrolases; Acting on acid anhydrides; Acting on GTP to facilitate cellular and subcellular movement / microtubule / hydrolase activity / cell division / GTPase activity / ubiquitin protein ligase binding / centrosome / GTP binding / protein homodimerization activity / ATP binding / metal ion binding / nucleus / cytoplasm / cytosol Similarity search - Function | |||||||||||||||
| Biological species | ![]() ![]() | |||||||||||||||
| Method | helical reconstruction / cryo EM / Resolution: 3.99 Å | |||||||||||||||
Authors | Shibata S / Imasaki T / Shigematsu H / Endow SA / Nitta R | |||||||||||||||
| Funding support | Japan, 4 items
| |||||||||||||||
Citation | Journal: bioRxiv / Year: 2024Title: Structural transitions in kinesin minus-end directed microtubule motility. Authors: Satoki Shibata / Matthew Y Wang / Tsuyoshi Imasaki / Hideki Shigematsu / Yuanyuan Wei / Chacko Jobichen / Hajime Hagio / J Sivaraman / Sharyn A Endow / Ryo Nitta / ![]() Abstract: Kinesin motor proteins hydrolyze ATP to produce force for spindle assembly and vesicle transport, performing essential functions in cell division and motility, but the structural changes required for ...Kinesin motor proteins hydrolyze ATP to produce force for spindle assembly and vesicle transport, performing essential functions in cell division and motility, but the structural changes required for force generation are uncertain. We now report high-resolution structures showing new transitions in the kinesin mechanochemical cycle, including power stroke fluctuations upon ATP binding and a post-hydrolysis state with bound ADP + free phosphate. We find that rate-limiting ADP release occurs upon microtubule binding, accompanied by central β-sheet twisting, which triggers the power stroke - stalk rotation and neck mimic docking - upon ATP binding. Microtubule release occurs with β-strand-to-loop transitions, implying that β-strand refolding induces Pi release and the recovery stroke. The strained β-sheet during the power stroke and strand-to-loop transitions identify the β-sheet as the long-sought motor spring. | |||||||||||||||
| History |
|
-
Structure visualization
| Supplemental images |
|---|
-
Downloads & links
-EMDB archive
| Map data | emd_39667.map.gz | 661.1 MB | EMDB map data format | |
|---|---|---|---|---|
| Header (meta data) | emd-39667-v30.xml emd-39667.xml | 26.7 KB 26.7 KB | Display Display | EMDB header |
| FSC (resolution estimation) | emd_39667_fsc.xml | 21.4 KB | Display | FSC data file |
| Images | emd_39667.png | 105.3 KB | ||
| Filedesc metadata | emd-39667.cif.gz | 7.9 KB | ||
| Others | emd_39667_half_map_1.map.gz emd_39667_half_map_2.map.gz | 664.5 MB 664.5 MB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-39667 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-39667 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 8yy5MC ![]() 8yy2C ![]() 8yy3C ![]() 8yy4C M: atomic model generated by this map C: citing same article ( |
|---|---|
| Similar structure data | Similarity search - Function & homology F&H Search |
-
Links
| EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
|---|---|
| Related items in Molecule of the Month |
-
Map
| File | Download / File: emd_39667.map.gz / Format: CCP4 / Size: 824 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
| Voxel size | X=Y=Z: 0.752 Å | ||||||||||||||||||||||||||||||||||||
| Density |
| ||||||||||||||||||||||||||||||||||||
| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
|
-Supplemental data
-Half map: #2
| File | emd_39667_half_map_1.map | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Projections & Slices |
| ||||||||||||
| Density Histograms |
-Half map: #1
| File | emd_39667_half_map_2.map | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Projections & Slices |
| ||||||||||||
| Density Histograms |
-
Sample components
+Entire : Kinesin-microtubule complex
+Supramolecule #1: Kinesin-microtubule complex
+Supramolecule #2: Tubulin
+Supramolecule #3: NCD
+Macromolecule #1: Tubulin alpha-1B chain
+Macromolecule #2: Tubulin beta chain
+Macromolecule #3: Protein claret segregational
+Macromolecule #4: GUANOSINE-5'-TRIPHOSPHATE
+Macromolecule #5: GUANOSINE-5'-DIPHOSPHATE
+Macromolecule #6: ADENOSINE-5'-DIPHOSPHATE
+Macromolecule #7: MAGNESIUM ION
+Macromolecule #8: TETRAFLUOROALUMINATE ION
-Experimental details
-Structure determination
| Method | cryo EM |
|---|---|
Processing | helical reconstruction |
| Aggregation state | filament |
-
Sample preparation
| Buffer | pH: 6.8 Component:
Details: 100 mM PIPES pH 6.8, 1 mM MgCl2, 1 mM EGTA, 1 mM GTP, 2 mM ADP, 2 mM AlCl3, and 8 mM NaF | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Grid | Model: Quantifoil R2/1 / Material: COPPER / Mesh: 300 / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 30 sec. / Pretreatment - Atmosphere: AIR / Pretreatment - Pressure: 0.02 kPa / Details: 10 mA | ||||||||||||||||||||||||
| Vitrification | Cryogen name: ETHANE / Chamber humidity: 90 % / Chamber temperature: 310 K / Instrument: FEI VITROBOT MARK IV |
-
Electron microscopy
| Microscope | JEOL CRYO ARM 300 |
|---|---|
| Image recording | Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 50.0 e/Å2 |
| Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
| Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 1.5 µm / Nominal defocus min: 0.8 µm |
Movie
Controller
About Yorodumi




Keywords

Authors
Japan, 4 items
Citation
















Z (Sec.)
Y (Row.)
X (Col.)









































Processing
FIELD EMISSION GUN

