[English] 日本語

- EMDB-7116: CryoEM structure of MyosinVI-actin complex in the rigor (nucleoti... -
+
Open data
-
Basic information
Entry | Database: EMDB / ID: EMD-7116 | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Title | CryoEM structure of MyosinVI-actin complex in the rigor (nucleotide-free) state | |||||||||
![]() | Cryo-EM structure of myosin VI-actin complex, B factor sharpened to -150 | |||||||||
![]() |
| |||||||||
![]() | Cytoskeleton / Filament / complex / CONTRACTILE PROTEIN | |||||||||
Function / homology | ![]() CH domain binding / regulation of secretion / inner ear auditory receptor cell differentiation / actin filament-based movement / myosin complex / clathrin-coated vesicle / inner ear morphogenesis / cytoskeletal motor activator activity / microfilament motor activity / myosin binding ...CH domain binding / regulation of secretion / inner ear auditory receptor cell differentiation / actin filament-based movement / myosin complex / clathrin-coated vesicle / inner ear morphogenesis / cytoskeletal motor activator activity / microfilament motor activity / myosin binding / tropomyosin binding / myosin heavy chain binding / troponin I binding / mesenchyme migration / filamentous actin / actin filament bundle / cytoskeletal motor activity / microvillus / striated muscle thin filament / actin filament bundle assembly / skeletal muscle thin filament assembly / skeletal muscle myofibril / actin monomer binding / DNA damage response, signal transduction by p53 class mediator / stress fiber / skeletal muscle fiber development / clathrin-coated pit / titin binding / ruffle / actin filament polymerization / actin filament organization / filopodium / actin filament / intracellular protein transport / sensory perception of sound / Hydrolases; Acting on acid anhydrides; Acting on acid anhydrides to facilitate cellular and subcellular movement / ADP binding / ruffle membrane / endocytosis / calcium-dependent protein binding / actin filament binding / disordered domain specific binding / actin cytoskeleton / protein localization / lamellipodium / myelin sheath / cell body / cell cortex / cytoplasmic vesicle / nuclear membrane / calmodulin binding / hydrolase activity / protein domain specific binding / centrosome / calcium ion binding / positive regulation of gene expression / perinuclear region of cytoplasm / Golgi apparatus / magnesium ion binding / protein-containing complex / nucleoplasm / ATP binding / identical protein binding / nucleus / metal ion binding / plasma membrane / cytosol / cytoplasm Similarity search - Function | |||||||||
Biological species | ![]() ![]() ![]() ![]() | |||||||||
Method | helical reconstruction / cryo EM / Resolution: 4.6 Å | |||||||||
![]() | Gurel PS / Alushin GA | |||||||||
Funding support | ![]()
| |||||||||
![]() | Journal: Nat Nanotechnol / Year: 2018 Title: Controllable molecular motors engineered from myosin and RNA. Authors: Tosan Omabegho / Pinar S Gurel / Clarence Y Cheng / Laura Y Kim / Paul V Ruijgrok / Rhiju Das / Gregory M Alushin / Zev Bryant / ![]() Abstract: Engineering biomolecular motors can provide direct tests of structure-function relationships and customized components for controlling molecular transport in artificial systems or in living cells . ...Engineering biomolecular motors can provide direct tests of structure-function relationships and customized components for controlling molecular transport in artificial systems or in living cells . Previously, synthetic nucleic acid motors and modified natural protein motors have been developed in separate complementary strategies to achieve tunable and controllable motor function. Integrating protein and nucleic-acid components to form engineered nucleoprotein motors may enable additional sophisticated functionalities. However, this potential has only begun to be explored in pioneering work harnessing DNA scaffolds to dictate the spacing, number and composition of tethered protein motors . Here, we describe myosin motors that incorporate RNA lever arms, forming hybrid assemblies in which conformational changes in the protein motor domain are amplified and redirected by nucleic acid structures. The RNA lever arm geometry determines the speed and direction of motor transport and can be dynamically controlled using programmed transitions in the lever arm structure . We have characterized the hybrid motors using in vitro motility assays, single-molecule tracking, cryo-electron microscopy and structural probing . Our designs include nucleoprotein motors that reversibly change direction in response to oligonucleotides that drive strand-displacement reactions. In multimeric assemblies, the controllable motors walk processively along actin filaments at speeds of 10-20 nm s. Finally, to illustrate the potential for multiplexed addressable control, we demonstrate sequence-specific responses of RNA variants to oligonucleotide signals. | |||||||||
History |
|
-
Structure visualization
Movie |
![]() |
---|---|
Structure viewer | EM map: ![]() ![]() ![]() |
Supplemental images |
-
Downloads & links
-EMDB archive
Map data | ![]() | 420 MB | ![]() | |
---|---|---|---|---|
Header (meta data) | ![]() ![]() | 26.7 KB 26.7 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 21 KB | Display | ![]() |
Images | ![]() ![]() | 179.5 KB 268.5 KB | ||
Masks | ![]() ![]() | 512 MB 512 MB | ![]() | |
Filedesc metadata | ![]() | 7.7 KB | ||
Others | ![]() ![]() ![]() | 84.3 MB 85.3 MB 85.3 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 836.2 KB | Display | ![]() |
---|---|---|---|---|
Full document | ![]() | 835.7 KB | Display | |
Data in XML | ![]() | 25.8 KB | Display | |
Data in CIF | ![]() | 34.4 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 6bnpMC ![]() 6bnvMC ![]() 7115C ![]() 7117C ![]() 6bnoC ![]() 6bnqC ![]() 6bnuC ![]() 6bnwC C: citing same article ( M: atomic model generated by this map |
---|---|
Similar structure data |
-
Links
EMDB pages | ![]() ![]() |
---|---|
Related items in Molecule of the Month |
-
Map
File | ![]() | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Annotation | Cryo-EM structure of myosin VI-actin complex, B factor sharpened to -150 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.27 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
|
-Supplemental data
-Mask #1
File | ![]() | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Projections & Slices |
| ||||||||||||
Density Histograms |
-Mask #2
File | ![]() | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Projections & Slices |
| ||||||||||||
Density Histograms |
-Additional map: unsharpened density map of myosin VI-actin complex
File | emd_7116_additional.map | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Annotation | unsharpened density map of myosin VI-actin complex | ||||||||||||
Projections & Slices |
| ||||||||||||
Density Histograms |
-Half map: Half map of the full myosin VI-actin reconstruction
File | emd_7116_half_map_1.map | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Annotation | Half map of the full myosin VI-actin reconstruction | ||||||||||||
Projections & Slices |
| ||||||||||||
Density Histograms |
-Half map: Half map of the full myosin VI-actin reconstruction
File | emd_7116_half_map_2.map | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Annotation | Half map of the full myosin VI-actin reconstruction | ||||||||||||
Projections & Slices |
| ||||||||||||
Density Histograms |
-
Sample components
-Entire : myosin VI-actin in the rigor (nucleotide-free) state
Entire | Name: myosin VI-actin in the rigor (nucleotide-free) state |
---|---|
Components |
|
-Supramolecule #1: myosin VI-actin in the rigor (nucleotide-free) state
Supramolecule | Name: myosin VI-actin in the rigor (nucleotide-free) state / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#2 |
---|---|
Molecular weight | Theoretical: 42 KDa |
-Supramolecule #2: myosin VI
Supramolecule | Name: myosin VI / type: complex / ID: 2 / Parent: 1 / Macromolecule list: #1 |
---|---|
Source (natural) | Organism: ![]() ![]() |
-Supramolecule #3: actin
Supramolecule | Name: actin / type: complex / ID: 3 / Parent: 1 / Macromolecule list: #2 |
---|---|
Source (natural) | Organism: ![]() ![]() |
-Macromolecule #1: Unconventional myosin-VI
Macromolecule | Name: Unconventional myosin-VI / type: protein_or_peptide / ID: 1 / Number of copies: 6 / Enantiomer: LEVO |
---|---|
Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 79.837367 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: EDGKPVWAPH PTDGFQVGNI VDIGPDSLTI EPLNQKGKTF LALINQVFPA EEDSKKDVED NCSLMYLNEA TLLHNIKVRY SKDRIYTYV ANILIAVNPY FDIPKIYSSE TIKSYQGKSL GTMPPHVFAI ADKAFRDMKV LKLSQSIIVS GESGAGKTEN T KFVLRYLT ...String: EDGKPVWAPH PTDGFQVGNI VDIGPDSLTI EPLNQKGKTF LALINQVFPA EEDSKKDVED NCSLMYLNEA TLLHNIKVRY SKDRIYTYV ANILIAVNPY FDIPKIYSSE TIKSYQGKSL GTMPPHVFAI ADKAFRDMKV LKLSQSIIVS GESGAGKTEN T KFVLRYLT ESYGTGQDID DRIVEANPLL EAFGNAKTVR NNNSSRFGKF VEIHFNEKSS VVGGFVSHYL LEKSRICVQG KE ERNYHIF YRLCAGASED IRERLHLSSP DNFRYLNRGC TRYFANKETD KQILQNRKSP EYLKAGSLKD PLLDDHGDFI RMC TAMKKI GLDDEEKLDL FRVVAGVLHL GNIDFEEAGS TSGGCNLKNK STQALEYCAE LLGLDQDDLR VSLTTRVMLT TAGG AKGTV IKVPLKVEQA NNARDALAKT VYSHLFDHVV NRVNQCFPFE TSSYFIGVLD IAGFEYFEHN SFEQFCINYC NEKLQ QFFN ERILKEEQEL YQKEGLGVNE VHYVDNQDCI DLIEARLVGI LDILDEENRL PQPSDQHFTS AVHQKHKDHF RLSIPR KSK LAIHRNIRDD EGFIIRHFAG AVCYETTQFV EKNNDALHMS LESLICESRD KFIRELFESS TNNNKDTKQK AGKLSFI SV GNKFKTQLNL LLDKLRSTGA SFIRCIKPNL KMTSHHFEGA QILSQLQCSG MVSVLDLMQG GF UniProtKB: Unconventional myosin-VI |
-Macromolecule #2: Actin, alpha skeletal muscle
Macromolecule | Name: Actin, alpha skeletal muscle / type: protein_or_peptide / ID: 2 / Number of copies: 8 / Enantiomer: LEVO |
---|---|
Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 41.560266 KDa |
Sequence | String: MCDEDETTAL VCDNGSGLVK AGFAGDDAPR AVFPSIVGRP RHQGVMVGMG QKDSYVGDEA QSKRGILTLK YPIEHGIITN WDDMEKIWH HTFYNELRVA PEEHPTLLTE APLNPKANRE KMTQIMFETF NVPAMYVAIQ AVLSLYASGR TTGIVLDSGD G VTHNVPIY ...String: MCDEDETTAL VCDNGSGLVK AGFAGDDAPR AVFPSIVGRP RHQGVMVGMG QKDSYVGDEA QSKRGILTLK YPIEHGIITN WDDMEKIWH HTFYNELRVA PEEHPTLLTE APLNPKANRE KMTQIMFETF NVPAMYVAIQ AVLSLYASGR TTGIVLDSGD G VTHNVPIY EGYALPHAIM RLDLAGRDLT DYLMKILTER GYSFVTTAER EIVRDIKEKL CYVALDFENE MATAASSSSL EK SYELPDG QVITIGNERF RCPETLFQPS FIGMESAGIH ETTYNSIMKC DIDIRKDLYA NNVMSGGTTM YPGIADRMQK EIT ALAPST MKIKIIAPPE RKYSVWIGGS ILASLSTFQQ MWITKQEYDE AGPSIVH UniProtKB: Actin, alpha skeletal muscle |
-Macromolecule #3: MAGNESIUM ION
Macromolecule | Name: MAGNESIUM ION / type: ligand / ID: 3 / Number of copies: 8 / Formula: MG |
---|---|
Molecular weight | Theoretical: 24.305 Da |
-Macromolecule #4: ADENOSINE-5'-DIPHOSPHATE
Macromolecule | Name: ADENOSINE-5'-DIPHOSPHATE / type: ligand / ID: 4 / Number of copies: 8 / Formula: ADP |
---|---|
Molecular weight | Theoretical: 427.201 Da |
Chemical component information | ![]() ChemComp-ADP: |
-Experimental details
-Structure determination
Method | cryo EM |
---|---|
![]() | helical reconstruction |
Aggregation state | filament |
-
Sample preparation
Concentration | 0.45 mg/mL | ||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Buffer | pH: 7.5 Component:
Details: Buffer was filtered through 0.44 um filter and degassed. | ||||||||||||||||||||||||||||||
Grid | Model: C-flat-1.2/1.3 / Material: COPPER / Mesh: 200 / Pretreatment - Type: PLASMA CLEANING / Pretreatment - Time: 6 sec. / Pretreatment - Atmosphere: OTHER | ||||||||||||||||||||||||||||||
Vitrification | Cryogen name: ETHANE / Chamber humidity: 95 % / Chamber temperature: 298 K / Instrument: LEICA EM GP Details: Sample was applied to a glow-discharged holey carbon grid. 3 uL actin was incubated for 60 seconds. 3 uL of myosin VI was added and incubated for 60 seconds. 3 uL solution was removed. An ...Details: Sample was applied to a glow-discharged holey carbon grid. 3 uL actin was incubated for 60 seconds. 3 uL of myosin VI was added and incubated for 60 seconds. 3 uL solution was removed. An additional 3 uL of myosin VI was applied. After 60 seconds, 3 uL solution was removed, and the grid was blotted for 3 seconds from the backside with filter paper.. | ||||||||||||||||||||||||||||||
Details | 0.45 mg/mL myosin VI was added to 0.025 mg/mL actin |
-
Electron microscopy
Microscope | FEI TECNAI 20 |
---|---|
Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: COUNTING / Digitization - Dimensions - Width: 3838 pixel / Digitization - Dimensions - Height: 3710 pixel / Digitization - Frames/image: 1-24 / Number grids imaged: 3 / Number real images: 778 / Average exposure time: 0.25 sec. / Average electron dose: 1.5 e/Å2 |
Electron beam | Acceleration voltage: 200 kV / Electron source: ![]() |
Electron optics | C2 aperture diameter: 100.0 µm / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.0 mm / Nominal defocus max: 3.0 µm / Nominal defocus min: 1.5 µm / Nominal magnification: 29000 |
Sample stage | Specimen holder model: GATAN 626 SINGLE TILT LIQUID NITROGEN CRYO TRANSFER HOLDER Cooling holder cryogen: NITROGEN |
-
Image processing
-Atomic model buiding 1
Details | Initial models were assembled from 8 actins (3J8A) and 6 myosins (2BKI) through rigid body docking in Chimera, followed by flexible fitting with DireX. Resulting models were subjected to MDFF. |
---|---|
Refinement | Protocol: FLEXIBLE FIT / Overall B value: 150 |
Output model | ![]() PDB-6bnp: ![]() PDB-6bnv: |