+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-21936 | |||||||||||||||||||||||||||
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Title | Apo KIF14[391-755] in complex with a microtubule | |||||||||||||||||||||||||||
Map data | Main map. Locally refined single unit. Not helically averaged. Composite map from the localdeblur map and the 7 A low pass filtered map. | |||||||||||||||||||||||||||
Sample |
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Keywords | KIF14 / kinesin / motility / microtubule / tubulin / MOTOR PROTEIN | |||||||||||||||||||||||||||
Function / homology | Function and homology information cerebellar granular layer structural organization / regulation of cell maturation / cerebellar Purkinje cell layer structural organization / RHO GTPases activate CIT / negative regulation of integrin activation / RND2 GTPase cycle / RND1 GTPase cycle / cell proliferation in forebrain / regulation of Rap protein signal transduction / cerebellar cortex development ...cerebellar granular layer structural organization / regulation of cell maturation / cerebellar Purkinje cell layer structural organization / RHO GTPases activate CIT / negative regulation of integrin activation / RND2 GTPase cycle / RND1 GTPase cycle / cell proliferation in forebrain / regulation of Rap protein signal transduction / cerebellar cortex development / olfactory bulb development / Microtubule-dependent trafficking of connexons from Golgi to the plasma membrane / Hedgehog 'off' state / Cilium Assembly / Intraflagellar transport / COPI-dependent Golgi-to-ER retrograde traffic / Carboxyterminal post-translational modifications of tubulin / RHOH GTPase cycle / Sealing of the nuclear envelope (NE) by ESCRT-III / Kinesins / PKR-mediated signaling / The role of GTSE1 in G2/M progression after G2 checkpoint / Aggrephagy / Resolution of Sister Chromatid Cohesion / Mitotic Prometaphase / EML4 and NUDC in mitotic spindle formation / Separation of Sister Chromatids / Flemming body / plus-end-directed microtubule motor activity / 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 / COPI-mediated anterograde transport / microtubule motor activity / regulation of myelination / kinesin complex / mitotic metaphase chromosome alignment / SCF-dependent proteasomal ubiquitin-dependent protein catabolic process / activation of protein kinase activity / microtubule-based movement / positive regulation of cytokinesis / regulation of G1/S transition of mitotic cell cycle / spindle midzone / regulation of cell adhesion / regulation of neuron apoptotic process / regulation of G2/M transition of mitotic cell cycle / regulation of cell migration / tubulin binding / substrate adhesion-dependent cell spreading / hippocampus development / regulation of cell growth / PDZ domain binding / establishment of protein localization / cerebral cortex development / structural constituent of cytoskeleton / microtubule cytoskeleton organization / microtubule cytoskeleton / mitotic cell cycle / midbody / microtubule binding / Hydrolases; Acting on acid anhydrides; Acting on GTP to facilitate cellular and subcellular movement / proteasome-mediated ubiquitin-dependent protein catabolic process / negative regulation of neuron apoptotic process / microtubule / cell division / GTPase activity / positive regulation of cell population proliferation / negative regulation of apoptotic process / GTP binding / protein kinase binding / ATP hydrolysis activity / ATP binding / membrane / nucleus / metal ion binding / plasma membrane / cytosol / cytoplasm Similarity search - Function | |||||||||||||||||||||||||||
Biological species | Mus musculus (house mouse) / Sus scrofa (pig) | |||||||||||||||||||||||||||
Method | helical reconstruction / cryo EM / Resolution: 3.6 Å | |||||||||||||||||||||||||||
Authors | Benoit MPMH / Asenjo AB | |||||||||||||||||||||||||||
Funding support | United States, Canada, 8 items
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Citation | Journal: Nat Commun / Year: 2021 Title: Structural basis of mechano-chemical coupling by the mitotic kinesin KIF14. Authors: Matthieu P M H Benoit / Ana B Asenjo / Mohammadjavad Paydar / Sabin Dhakal / Benjamin H Kwok / Hernando Sosa / Abstract: KIF14 is a mitotic kinesin whose malfunction is associated with cerebral and renal developmental defects and several cancers. Like other kinesins, KIF14 couples ATP hydrolysis and microtubule binding ...KIF14 is a mitotic kinesin whose malfunction is associated with cerebral and renal developmental defects and several cancers. Like other kinesins, KIF14 couples ATP hydrolysis and microtubule binding to the generation of mechanical work, but the coupling mechanism between these processes is still not fully clear. Here we report 20 high-resolution (2.7-3.9 Å) cryo-electron microscopy KIF14-microtubule structures with complementary functional assays. Analysis procedures were implemented to separate coexisting conformations of microtubule-bound monomeric and dimeric KIF14 constructs. The data provide a comprehensive view of the microtubule and nucleotide induced KIF14 conformational changes. It shows that: 1) microtubule binding, the nucleotide species, and the neck-linker domain govern the transition between three major conformations of the motor domain; 2) an undocked neck-linker prevents the nucleotide-binding pocket to fully close and dampens ATP hydrolysis; 3) 13 neck-linker residues are required to assume a stable docked conformation; 4) the neck-linker position controls the hydrolysis rather than the nucleotide binding step; 5) the two motor domains of KIF14 dimers adopt distinct conformations when bound to the microtubule; and 6) the formation of the two-heads-bound-state introduces structural changes in both motor domains of KIF14 dimers. These observations provide the structural basis for a coordinated chemo-mechanical kinesin translocation model. | |||||||||||||||||||||||||||
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_21936.map.gz | 4.2 MB | EMDB map data format | |
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Header (meta data) | emd-21936-v30.xml emd-21936.xml | 37.7 KB 37.7 KB | Display Display | EMDB header |
FSC (resolution estimation) | emd_21936_fsc.xml | 11.4 KB | Display | FSC data file |
Images | emd_21936.png | 152.1 KB | ||
Masks | emd_21936_msk_1.map emd_21936_msk_2.map emd_21936_msk_3.map emd_21936_msk_4.map emd_21936_msk_5.map emd_21936_msk_6.map emd_21936_msk_7.map | 512 MB 125 MB 125 MB 512 MB 125 MB 512 MB 125 MB | Mask map | |
Filedesc metadata | emd-21936.cif.gz | 8.2 KB | ||
Others | emd_21936_additional_1.map.gz emd_21936_additional_2.map.gz emd_21936_additional_3.map.gz emd_21936_additional_4.map.gz emd_21936_additional_5.map.gz emd_21936_half_map_1.map.gz emd_21936_half_map_2.map.gz | 117.9 MB 20.7 MB 380.7 MB 109.4 MB 380.7 MB 98 MB 98 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-21936 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-21936 | HTTPS FTP |
-Validation report
Summary document | emd_21936_validation.pdf.gz | 1.2 MB | Display | EMDB validaton report |
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Full document | emd_21936_full_validation.pdf.gz | 1.2 MB | Display | |
Data in XML | emd_21936_validation.xml.gz | 18.4 KB | Display | |
Data in CIF | emd_21936_validation.cif.gz | 24.4 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-21936 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-21936 | HTTPS FTP |
-Related structure data
Related structure data | 6wwiMC 6wweC 6wwfC 6wwgC 6wwhC 6wwjC 6wwkC 6wwlC 6wwmC 6wwnC 6wwoC 6wwpC 6wwqC 6wwrC 6wwsC 6wwtC 6wwuC 6wwvC 7lvqC 7lvrC 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_21936.map.gz / Format: CCP4 / Size: 125 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Annotation | Main map. Locally refined single unit. Not helically averaged. Composite map from the localdeblur map and the 7 A low pass filtered map. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.088 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
+Mask #1
+Mask #2
+Mask #3
+Mask #4
+Mask #5
+Mask #6
+Mask #7
+Additional map: 7 A low pass filtered localdeblur map -...
+Additional map: Localdeblur map - used to make the composite...
+Additional map: Helical reconstruction half map 2 (gold standard).
+Additional map: Helical reconstruction.
+Additional map: Helical reconstruction half map 1 (gold standard).
+Half map: Half map 1 (gold standard). Locally refined single...
+Half map: Half map 2 (gold standard). Locally refined single...
-Sample components
+Entire : Apo Kif14[391-755] in complex with a microtubule
+Supramolecule #1: Apo Kif14[391-755] in complex with a microtubule
+Supramolecule #2: Apo KIF14[391-755]
+Supramolecule #3: Microtubule
+Macromolecule #1: Tubulin alpha-1B chain
+Macromolecule #2: Tubulin beta-2B chain
+Macromolecule #3: Kinesin-like protein KIF14
+Macromolecule #4: GUANOSINE-5'-TRIPHOSPHATE
+Macromolecule #5: MAGNESIUM ION
+Macromolecule #6: GUANOSINE-5'-DIPHOSPHATE
+Macromolecule #7: TAXOL
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | helical reconstruction |
Aggregation state | filament |
-Sample preparation
Buffer | pH: 6.8 Component:
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Vitrification | Cryogen name: ETHANE / Instrument: FEI VITROBOT MARK IV |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: COUNTING / Average electron dose: 69.2 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Calibrated magnification: 45956 / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / 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 | Space: REAL / Protocol: FLEXIBLE FIT |
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Output model | PDB-6wwi: |