+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-14148 | |||||||||
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Title | D. melanogaster alpha/beta tubulin heterodimer in the GTP form | |||||||||
Map data | alpha/beta tubulin heterdimer from D. melanogaster in the GTP form | |||||||||
Sample |
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Keywords | Cytyoskeleton / microtubules / cytomotive filaments / CELL CYCLE | |||||||||
Function / homology | Function and homology information HSP90 chaperone cycle for steroid hormone receptors (SHR) in the presence of ligand / COPI-mediated anterograde transport / COPI-independent Golgi-to-ER retrograde traffic / COPI-dependent Golgi-to-ER retrograde traffic / Kinesins / astral microtubule / Neutrophil degranulation / lysosome localization / structural constituent of cytoskeleton / microtubule cytoskeleton organization ...HSP90 chaperone cycle for steroid hormone receptors (SHR) in the presence of ligand / COPI-mediated anterograde transport / COPI-independent Golgi-to-ER retrograde traffic / COPI-dependent Golgi-to-ER retrograde traffic / Kinesins / astral microtubule / Neutrophil degranulation / lysosome localization / structural constituent of cytoskeleton / microtubule cytoskeleton organization / spindle / mitotic cell cycle / Hydrolases; Acting on acid anhydrides; Acting on GTP to facilitate cellular and subcellular movement / microtubule / hydrolase activity / GTPase activity / centrosome / GTP binding / perinuclear region of cytoplasm / nucleus / metal ion binding / cytoplasm Similarity search - Function | |||||||||
Biological species | Drosophila melanogaster (fruit fly) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.47 Å | |||||||||
Authors | Wagstaff J / Planelles-Herrero VJ / Derivery E / Lowe J | |||||||||
Funding support | United Kingdom, 2 items
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Citation | Journal: Sci Adv / Year: 2023 Title: Diverse cytomotive actins and tubulins share a polymerization switch mechanism conferring robust dynamics. Authors: James Mark Wagstaff / Vicente José Planelles-Herrero / Grigory Sharov / Aisha Alnami / Frank Kozielski / Emmanuel Derivery / Jan Löwe / Abstract: Protein filaments are used in myriads of ways to organize other molecules within cells. Some filament-forming proteins couple the hydrolysis of nucleotides to their polymerization cycle, thus ...Protein filaments are used in myriads of ways to organize other molecules within cells. Some filament-forming proteins couple the hydrolysis of nucleotides to their polymerization cycle, thus powering the movement of other molecules. These filaments are termed cytomotive. Only members of the actin and tubulin protein superfamilies are known to form cytomotive filaments. We examined the basis of cytomotivity via structural studies of the polymerization cycles of actin and tubulin homologs from across the tree of life. We analyzed published data and performed structural experiments designed to disentangle functional components of these complex filament systems. Our analysis demonstrates the existence of shared subunit polymerization switches among both cytomotive actins and tubulins, i.e., the conformation of subunits switches upon assembly into filaments. These cytomotive switches can explain filament robustness, by enabling the coupling of kinetic and structural polarities required for cytomotive behaviors and by ensuring that single cytomotive filaments do not fall apart. | |||||||||
History |
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-Structure visualization
Supplemental images |
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-Downloads & links
-EMDB archive
Map data | emd_14148.map.gz | 92.5 MB | EMDB map data format | |
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Header (meta data) | emd-14148-v30.xml emd-14148.xml | 14.3 KB 14.3 KB | Display Display | EMDB header |
FSC (resolution estimation) | emd_14148_fsc.xml | 5.3 KB | Display | FSC data file |
Images | emd_14148.png | 99.7 KB | ||
Filedesc metadata | emd-14148.cif.gz | 6.2 KB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-14148 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-14148 | HTTPS FTP |
-Validation report
Summary document | emd_14148_validation.pdf.gz | 615.8 KB | Display | EMDB validaton report |
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Full document | emd_14148_full_validation.pdf.gz | 615.4 KB | Display | |
Data in XML | emd_14148_validation.xml.gz | 9.4 KB | Display | |
Data in CIF | emd_14148_validation.cif.gz | 11.8 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-14148 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-14148 | HTTPS FTP |
-Related structure data
Related structure data | 7qudMC 7qucC 7qupC 7quqC M: atomic model generated by this map C: citing same article (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_14148.map.gz / Format: CCP4 / Size: 98.9 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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Annotation | alpha/beta tubulin heterdimer from D. melanogaster in the GTP form | ||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 0.622 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Sample components
-Entire : alpha1/beta tubulin heterodimer
Entire | Name: alpha1/beta tubulin heterodimer |
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Components |
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-Supramolecule #1: alpha1/beta tubulin heterodimer
Supramolecule | Name: alpha1/beta tubulin heterodimer / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#2 |
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-Supramolecule #2: Tubulin alpha-1 chain
Supramolecule | Name: Tubulin alpha-1 chain / type: complex / ID: 2 / Parent: 1 / Macromolecule list: #1 |
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Source (natural) | Organism: Drosophila melanogaster (fruit fly) |
-Supramolecule #3: Tubulin beta-1 chain
Supramolecule | Name: Tubulin beta-1 chain / type: complex / ID: 3 / Parent: 1 / Macromolecule list: #2 |
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Source (natural) | Organism: Drosophila melanogaster (fruit fly) |
-Macromolecule #1: Tubulin alpha-1 chain
Macromolecule | Name: Tubulin alpha-1 chain / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: Drosophila melanogaster (fruit fly) |
Molecular weight | Theoretical: 52.772324 KDa |
Recombinant expression | Organism: Drosophila melanogaster (fruit fly) |
Sequence | String: MHHHHHHEDQ VDPRLIDGKG GGGRPMRECI SIHVGQAGVQ IGNACWELYC LEHGIQPDGQ MPSDKTVGGG DDSFNTFFSE TGAGKHVPR AVFVDLEPTV VDEVRTGTYR QLFHPEQLIT GKEDAANNYA RGHYTIGKEI VDLVLDRIRK LADQCTGLQG F LIFHSFGG ...String: MHHHHHHEDQ VDPRLIDGKG GGGRPMRECI SIHVGQAGVQ IGNACWELYC LEHGIQPDGQ MPSDKTVGGG DDSFNTFFSE TGAGKHVPR AVFVDLEPTV VDEVRTGTYR QLFHPEQLIT GKEDAANNYA RGHYTIGKEI VDLVLDRIRK LADQCTGLQG F LIFHSFGG GTGSGFTSLL MERLSVDYGK KSKLEFAIYP APQVSTAVVE PYNSILTTHT TLEHSDCAFM VDNEAIYDIC RR NLDIERP TYTNLNRLIG QIVSSITASL RFDGALNVDL TEFQTNLVPY PRIHFPLVTY APVISAEKAY HEQLSVAEIT NAC FEPANQ MVKCDPRHGK YMACCMLYRG DVVPKDVNAA IATIKTKRTI QFVDWCPTGF KVGINYQPPT VVPGGDLAKV QRAV CMLSN TTAIAEAWAR LDHKFDLMYA KRAFVHWYVG EGMEEGEFSE AREDLAALEK DYEEVGMDSG DGEGEGAEEY UniProtKB: Tubulin alpha-1 chain |
-Macromolecule #2: Tubulin beta-1 chain
Macromolecule | Name: Tubulin beta-1 chain / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: Drosophila melanogaster (fruit fly) |
Molecular weight | Theoretical: 50.194137 KDa |
Sequence | String: MREIVHIQAG QCGNQIGAKF WEIISDEHGI DATGAYHGDS DLQLERINVY YNEASGGKYV PRAVLVDLEP GTMDSVRSGP FGQIFRPDN FVFGQSGAGN NWAKGHYTEG AELVDSVLDV VRKEAESCDC LQGFQLTHSL GGGTGSGMGT LLISKIREEY P DRIMNTYS ...String: MREIVHIQAG QCGNQIGAKF WEIISDEHGI DATGAYHGDS DLQLERINVY YNEASGGKYV PRAVLVDLEP GTMDSVRSGP FGQIFRPDN FVFGQSGAGN NWAKGHYTEG AELVDSVLDV VRKEAESCDC LQGFQLTHSL GGGTGSGMGT LLISKIREEY P DRIMNTYS VVPSPKVSDT VVEPYNATLS VHQLVENTDE TYCIDNEALY DICFRTLKLT TPTYGDLNHL VSLTMSGVTT CL RFPGQLN ADLRKLAVNM VPFPRLHFFM PGFAPLTSRG SQQYRALTVP ELTQQMFDAK NMMAACDPRH GRYLTVAAIF RGR MSMKEV DEQMLNIQNK NSSYFVEWIP NNVKTAVCDI PPRGLKMSAT FIGNSTAIQE LFKRISEQFT AMFRRKAFLH WYTG EGMDE MEFTEAESNM NDLVSEYQQY QEATADEDAE FEEEQEAEVD EN UniProtKB: Tubulin beta-1 chain |
-Macromolecule #3: GUANOSINE-5'-TRIPHOSPHATE
Macromolecule | Name: GUANOSINE-5'-TRIPHOSPHATE / type: ligand / ID: 3 / Number of copies: 2 / Formula: GTP |
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Molecular weight | Theoretical: 523.18 Da |
Chemical component information | ChemComp-GTP: |
-Macromolecule #4: MAGNESIUM ION
Macromolecule | Name: MAGNESIUM ION / type: ligand / ID: 4 / Number of copies: 1 / Formula: MG |
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Molecular weight | Theoretical: 24.305 Da |
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 6.9 |
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Vitrification | Cryogen name: NITROGEN |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K3 (6k x 4k) / Number real images: 4037 / Average electron dose: 40.0 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: 3.0 µm / Nominal defocus min: 1.0 µm |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |