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Open data
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Basic information
| Entry | ![]() | |||||||||
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| Title | HURP(65-174) bound to GMPCPP-stabilized microtubule | |||||||||
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Keywords | microtubule / nucleation / spindle / oncogene / CELL CYCLE | |||||||||
| Function / homology | Function and homology informationmitotic chromosome movement towards spindle pole / signaling / kinetochore assembly / positive regulation of mitotic metaphase/anaphase transition / spindle pole centrosome / Microtubule-dependent trafficking of connexons from Golgi to the plasma membrane / Resolution of Sister Chromatid Cohesion / Hedgehog 'off' state / Cilium Assembly / Intraflagellar transport ...mitotic chromosome movement towards spindle pole / signaling / kinetochore assembly / positive regulation of mitotic metaphase/anaphase transition / spindle pole centrosome / 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 / 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 / NOTCH3 Intracellular Domain Regulates Transcription / centrosome localization / COPI-mediated anterograde transport / regulation of mitotic cell cycle / mitotic spindle organization / chromosome segregation / structural constituent of cytoskeleton / microtubule cytoskeleton organization / neuron migration / mitotic spindle / mitotic cell cycle / microtubule cytoskeleton / microtubule binding / Hydrolases; Acting on acid anhydrides; Acting on GTP to facilitate cellular and subcellular movement / microtubule / GTPase activity / GTP binding / metal ion binding / nucleus / cytosol / cytoplasm Similarity search - Function | |||||||||
| Biological species | ![]() Homo sapiens (human) | |||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 2.8 Å | |||||||||
Authors | Ma M / Valdez V / Petry S / Zhang R | |||||||||
| Funding support | United States, 1 items
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Citation | Journal: Nat Commun / Year: 2024Title: HURP facilitates spindle assembly by stabilizing microtubules and working synergistically with TPX2. Authors: Venecia Alexandria Valdez / Meisheng Ma / Bernardo Gouveia / Rui Zhang / Sabine Petry / ![]() Abstract: In vertebrate spindles, most microtubules are formed via branching microtubule nucleation, whereby microtubules nucleate along the side of pre-existing microtubules. Hepatoma up-regulated protein ...In vertebrate spindles, most microtubules are formed via branching microtubule nucleation, whereby microtubules nucleate along the side of pre-existing microtubules. Hepatoma up-regulated protein (HURP) is a microtubule-associated protein that has been implicated in spindle assembly, but its mode of action is yet to be defined. In this study, we show that HURP is necessary for RanGTP-induced branching microtubule nucleation in Xenopus egg extract. Specifically, HURP stabilizes the microtubule lattice to promote microtubule formation from γ-TuRC. This function is shifted to promote branching microtubule nucleation through enhanced localization to TPX2 condensates, which form the core of the branch site on microtubules. Lastly, we provide a high-resolution cryo-EM structure of HURP on the microtubule, revealing how HURP binding stabilizes the microtubule lattice. We propose a model in which HURP stabilizes microtubules during their formation, and TPX2 preferentially enriches HURP to microtubules to promote branching microtubule nucleation and thus spindle assembly. | |||||||||
| History |
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Structure visualization
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Downloads & links
-EMDB archive
| Map data | emd_47173.map.gz | 63.9 MB | EMDB map data format | |
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| Header (meta data) | emd-47173-v30.xml emd-47173.xml | 22 KB 22 KB | Display Display | EMDB header |
| FSC (resolution estimation) | emd_47173_fsc.xml | 13.1 KB | Display | FSC data file |
| Images | emd_47173.png | 217.2 KB | ||
| Filedesc metadata | emd-47173.cif.gz | 6.8 KB | ||
| Others | emd_47173_additional_1.map.gz emd_47173_half_map_1.map.gz emd_47173_half_map_2.map.gz | 123 MB 226.7 MB 226.7 MB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-47173 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-47173 | HTTPS FTP |
-Validation report
| Summary document | emd_47173_validation.pdf.gz | 889.7 KB | Display | EMDB validaton report |
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| Full document | emd_47173_full_validation.pdf.gz | 889.3 KB | Display | |
| Data in XML | emd_47173_validation.xml.gz | 21.7 KB | Display | |
| Data in CIF | emd_47173_validation.cif.gz | 28.3 KB | Display | |
| Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-47173 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-47173 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 9duqMC 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_47173.map.gz / Format: CCP4 / Size: 244.1 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: 1.39 Å | ||||||||||||||||||||||||||||||||||||
| Density |
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
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-Supplemental data
-Additional map: #1
| File | emd_47173_additional_1.map | ||||||||||||
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| Density Histograms |
-Half map: #1
| File | emd_47173_half_map_1.map | ||||||||||||
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| Density Histograms |
-Half map: #2
| File | emd_47173_half_map_2.map | ||||||||||||
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| Density Histograms |
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Sample components
-Entire : HURP(65-174) bound to GMPCPP-stabilized microtubule
| Entire | Name: HURP(65-174) bound to GMPCPP-stabilized microtubule |
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| Components |
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-Supramolecule #1: HURP(65-174) bound to GMPCPP-stabilized microtubule
| Supramolecule | Name: HURP(65-174) bound to GMPCPP-stabilized microtubule / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#3 |
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| Source (natural) | Organism: ![]() |
-Macromolecule #1: Disks large-associated protein 5
| Macromolecule | Name: Disks large-associated protein 5 / type: protein_or_peptide / ID: 1 / Number of copies: 9 / Enantiomer: LEVO |
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| Source (natural) | Organism: Homo sapiens (human) |
| Molecular weight | Theoretical: 5.682775 KDa |
| Recombinant expression | Organism: ![]() |
| Sequence | String: GDQRKQMLQK YKEEKQLQKL KEQREKAKRG IFKVGRYRPD MPCFLL UniProtKB: Disks large-associated protein 5 |
-Macromolecule #2: Tubulin beta chain
| Macromolecule | Name: Tubulin beta chain / type: protein_or_peptide / ID: 2 / Number of copies: 9 / Enantiomer: LEVO |
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| Source (natural) | Organism: ![]() |
| Molecular weight | Theoretical: 47.940945 KDa |
| Sequence | String: MREIVHIQAG QCGNQIGAKF WEVISDEHGI DPTGSYHGDS DLQLERINVY YNEAAGNKYV PRAILVDLEP GTMDSVRSGP FGQIFRPDN FVFGQSGAGN NWAKGHYTEG AELVDSVLDV VRKESESCDC LQGFQLTHSL GGGTGSGMGT LLISKIREEY P DRIMNTFS ...String: MREIVHIQAG QCGNQIGAKF WEVISDEHGI DPTGSYHGDS DLQLERINVY YNEAAGNKYV PRAILVDLEP GTMDSVRSGP FGQIFRPDN FVFGQSGAGN NWAKGHYTEG AELVDSVLDV VRKESESCDC LQGFQLTHSL GGGTGSGMGT LLISKIREEY P DRIMNTFS VVPSPKVSDT VVEPYNATLS VHQLVENTDE TYCIDNEALY DICFRTLKLT TPTYGDLNHL VSATMSGVTT CL RFPGQLN ADLRKLAVNM VPFPRLHFFM PGFAPLTSRG SQQYRALTVP ELTQQMFDAK NMMAACDPRH GRYLTVAAVF RGR MSMKEV DEQMLNVQNK NSSYFVEWIP NNVKTAVCDI PPRGLKMSAT FIGNSTAIQE LFKRISEQFT AMFRRKAFLH WYTG EGMDE MEFTEAESNM NDLVSEYQQY QD UniProtKB: Tubulin beta chain |
-Macromolecule #3: Tubulin alpha chain
| Macromolecule | Name: Tubulin alpha chain / type: protein_or_peptide / ID: 3 / Number of copies: 9 / Enantiomer: LEVO |
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| Source (natural) | Organism: ![]() |
| Molecular weight | Theoretical: 48.867195 KDa |
| Sequence | String: MRECISIHVG QAGVQIGNAC WELYCLEHGI QPDGQMPSDK TIGGGDDSFN TFFSETGAGK HVPRAVFVDL EPTVIDEVRT GTYRQLFHP EQLITGKEDA ANNYARGHYT IGKEIIDLVL DRIRKLADQC TGLQGFLVFH SFGGGTGSGF TSLLMERLSV D YGKKSKLE ...String: MRECISIHVG QAGVQIGNAC WELYCLEHGI QPDGQMPSDK TIGGGDDSFN TFFSETGAGK HVPRAVFVDL EPTVIDEVRT GTYRQLFHP EQLITGKEDA ANNYARGHYT IGKEIIDLVL DRIRKLADQC TGLQGFLVFH SFGGGTGSGF TSLLMERLSV D YGKKSKLE FSIYPAPQVS TAVVEPYNSI LTTHTTLEHS DCAFMVDNEA IYDICRRNLD IERPTYTNLN RLISQIVSSI TA SLRFDGA LNVDLTEFQT NLVPYPRIHF PLATYAPVIS AEKAYHEQLS VAEITNACFE PANQMVKCDP RHGKYMACCL LYR GDVVPK DVNAAIATIK TKRSIQFVDW CPTGFKVGIN YQPPTVVPGG DLAKVQRAVC MLSNTTAIAE AWARLDHKFD LMYA KRAFV HWYVGEGMEE GEFSEAREDM AALEKDYEEV GVDS UniProtKB: Tubulin alpha-1B chain |
-Macromolecule #4: PHOSPHOMETHYLPHOSPHONIC ACID GUANYLATE ESTER
| Macromolecule | Name: PHOSPHOMETHYLPHOSPHONIC ACID GUANYLATE ESTER / type: ligand / ID: 4 / Number of copies: 9 / Formula: G2P |
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| Molecular weight | Theoretical: 521.208 Da |
| Chemical component information | ![]() ChemComp-G2P: |
-Macromolecule #5: MAGNESIUM ION
| Macromolecule | Name: MAGNESIUM ION / type: ligand / ID: 5 / Number of copies: 18 / Formula: MG |
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| Molecular weight | Theoretical: 24.305 Da |
-Macromolecule #6: GUANOSINE-5'-TRIPHOSPHATE
| Macromolecule | Name: GUANOSINE-5'-TRIPHOSPHATE / type: ligand / ID: 6 / Number of copies: 9 / Formula: GTP |
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| Molecular weight | Theoretical: 523.18 Da |
| Chemical component information | ![]() ChemComp-GTP: |
-Experimental details
-Structure determination
| Method | cryo EM |
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Processing | single particle reconstruction |
| Aggregation state | filament |
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Sample preparation
| Buffer | pH: 6.8 Details: BRB80 (1X): 80 mM PIPES, 1 mM MgCl2, 1 mM EGTA, pH 6.8 with KOH |
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| Grid | Model: C-flat-1.2/1.3 / Material: COPPER / Mesh: 300 / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 30 sec. / Pretreatment - Atmosphere: AIR |
| Vitrification | Cryogen name: ETHANE / Chamber humidity: 95 % / Chamber temperature: 298.15 K / Instrument: FEI VITROBOT MARK IV |
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Electron microscopy
| Microscope | TFS KRIOS |
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| 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: 1-30 / Number grids imaged: 2 / Number real images: 1728 / Average exposure time: 9.0 sec. / Average electron dose: 39.6 e/Å2 |
| Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
| Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 0.01 mm / Nominal defocus max: 2.5 µm / Nominal defocus min: 1.0 µm / Nominal magnification: 81000 |
| Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN |
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
-Atomic model buiding 1
| Refinement | Space: RECIPROCAL / Protocol: BACKBONE TRACE |
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| Output model | ![]() PDB-9duq: |
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About Yorodumi




Keywords
Homo sapiens (human)
Authors
United States, 1 items
Citation





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















































FIELD EMISSION GUN


