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- PDB-7rro: Structure of the 48-nm repeat doublet microtubule from bovine tra... -
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Basic information
Entry | Database: PDB / ID: 7rro | ||||||
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Title | Structure of the 48-nm repeat doublet microtubule from bovine tracheal cilia | ||||||
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![]() | STRUCTURAL PROTEIN / cilia / microtubule / dynein / motility | ||||||
Function / homology | ![]() outer dynein arm docking complex / protein localization to motile cilium / regulation of cilium movement / outer acrosomal membrane / epithelial cilium movement involved in determination of left/right asymmetry / regulation of brood size / establishment of left/right asymmetry / 9+0 motile cilium / mucociliary clearance / sperm flagellum assembly ...outer dynein arm docking complex / protein localization to motile cilium / regulation of cilium movement / outer acrosomal membrane / epithelial cilium movement involved in determination of left/right asymmetry / regulation of brood size / establishment of left/right asymmetry / 9+0 motile cilium / mucociliary clearance / sperm flagellum assembly / manchette assembly / axonemal B tubule inner sheath / axonemal A tubule inner sheath / regulation of flagellated sperm motility / protein polyglutamylation / inner dynein arm assembly / regulation of calcineurin-NFAT signaling cascade / Microtubule-dependent trafficking of connexons from Golgi to the plasma membrane / Cilium Assembly / Intraflagellar transport / Carboxyterminal post-translational modifications of tubulin / Sealing of the nuclear envelope (NE) by ESCRT-III / Kinesins / positive regulation of feeding behavior / Resolution of Sister Chromatid Cohesion / Mitotic Prometaphase / EML4 and NUDC in mitotic spindle formation / outer dynein arm assembly / cilium-dependent cell motility / COPI-dependent Golgi-to-ER retrograde traffic / COPI-independent Golgi-to-ER retrograde traffic / COPI-mediated anterograde transport / Transferases; Transferring phosphorus-containing groups / sperm principal piece / RHO GTPases activate IQGAPs / cerebrospinal fluid circulation / regulation of cilium beat frequency involved in ciliary motility / RHO GTPases Activate Formins / cilium movement involved in cell motility / regulation of store-operated calcium entry / 9+2 motile cilium / MHC class II antigen presentation / HSP90 chaperone cycle for steroid hormone receptors (SHR) in the presence of ligand / acrosomal membrane / regulation of cilium assembly / axoneme assembly / cilium movement / ciliary transition zone / Aggrephagy / calcium ion sensor activity / axonemal microtubule / The role of GTSE1 in G2/M progression after G2 checkpoint / Separation of Sister Chromatids / cilium organization / Loss of Nlp from mitotic centrosomes / Recruitment of mitotic centrosome proteins and complexes / 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 NuMA to mitotic centrosomes / ciliary tip / gamma-tubulin ring complex / ciliary rootlet / manchette / Regulation of PLK1 Activity at G2/M Transition / Hedgehog 'off' state / flagellated sperm motility / UTP biosynthetic process / CTP biosynthetic process / determination of left/right symmetry / Neutrophil degranulation / positive regulation of cell motility / motile cilium / nucleoside diphosphate kinase activity / GTP biosynthetic process / AMP binding / regulation of neuron projection development / cerebral cortex cell migration / microtubule organizing center / mitotic cytokinesis / regulation of cell division / cellular response to UV-C / axoneme / cilium assembly / glial cell projection / spermatid development / alpha-tubulin binding / regulation of signal transduction / beta-tubulin binding / single fertilization / sperm flagellum / intercellular bridge / sperm midpiece / Hsp70 protein binding / 3'-5' exonuclease activity / centriole / acrosomal vesicle / lung development / mitotic spindle organization / meiotic cell cycle Similarity search - Function | ||||||
Biological species | ![]() ![]() | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.4 Å | ||||||
![]() | Gui, M. / Anderson, J.R. / Botsch, J.J. / Meleppattu, S. / Singh, S.K. / Zhang, Q. / Brown, A. | ||||||
Funding support | ![]()
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![]() | ![]() Title: De novo identification of mammalian ciliary motility proteins using cryo-EM. Authors: Miao Gui / Hannah Farley / Priyanka Anujan / Jacob R Anderson / Dale W Maxwell / Jonathan B Whitchurch / J Josephine Botsch / Tao Qiu / Shimi Meleppattu / Sandeep K Singh / Qi Zhang / James ...Authors: Miao Gui / Hannah Farley / Priyanka Anujan / Jacob R Anderson / Dale W Maxwell / Jonathan B Whitchurch / J Josephine Botsch / Tao Qiu / Shimi Meleppattu / Sandeep K Singh / Qi Zhang / James Thompson / Jane S Lucas / Colin D Bingle / Dominic P Norris / Sudipto Roy / Alan Brown / ![]() ![]() ![]() Abstract: Dynein-decorated doublet microtubules (DMTs) are critical components of the oscillatory molecular machine of cilia, the axoneme, and have luminal surfaces patterned periodically by microtubule inner ...Dynein-decorated doublet microtubules (DMTs) are critical components of the oscillatory molecular machine of cilia, the axoneme, and have luminal surfaces patterned periodically by microtubule inner proteins (MIPs). Here we present an atomic model of the 48-nm repeat of a mammalian DMT, derived from a cryoelectron microscopy (cryo-EM) map of the complex isolated from bovine respiratory cilia. The structure uncovers principles of doublet microtubule organization and features specific to vertebrate cilia, including previously unknown MIPs, a luminal bundle of tektin filaments, and a pentameric dynein-docking complex. We identify a mechanism for bridging 48- to 24-nm periodicity across the microtubule wall and show that loss of the proteins involved causes defective ciliary motility and laterality abnormalities in zebrafish and mice. Our structure identifies candidate genes for diagnosis of ciliopathies and provides a framework to understand their functions in driving ciliary motility. | ||||||
History |
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Structure visualization
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Structure viewer | Molecule: ![]() ![]() |
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PDBx/mmCIF format | ![]() | 26.7 MB | Display | ![]() |
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PDB format | ![]() | Display | ![]() | |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
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-Validation report
Summary document | ![]() | 21.5 MB | Display | ![]() |
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Full document | ![]() | 23.4 MB | Display | |
Data in XML | ![]() | 3.5 MB | Display | |
Data in CIF | ![]() | 5.4 MB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 24664MC C: citing same article ( M: map data used to model this data |
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Similar structure data |
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Links
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Assembly
Deposited unit | ![]()
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Components
+Protein , 27 types, 407 molecules 073456ABA0A1A2A3A4AAACAEAGAIAKAMBABCBEBGBIBKBMCACCCE...
-EF-hand domain ... , 2 types, 5 molecules 12TUV
#2: Protein | Mass: 97960.547 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #25: Protein | Mass: 74125.344 Da / Num. of mol.: 3 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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-Uncharacterized protein ... , 2 types, 3 molecules 89C
#5: Protein | Mass: 23271.453 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #11: Protein | | Mass: 12361.437 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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-Cilia and flagella associated protein ... , 3 types, 9 molecules EFabcdefg
#15: Protein | Mass: 36519.594 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #29: Protein | Mass: 65800.328 Da / Num. of mol.: 4 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #30: Protein | Mass: 68719.602 Da / Num. of mol.: 3 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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-Coiled-coil domain containing ... , 2 types, 5 molecules H1H2H3op
#19: Protein | Mass: 77675.969 Da / Num. of mol.: 3 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #33: Protein | Mass: 65437.598 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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-Non-polymers , 3 types, 451 molecules 




#37: Chemical | ChemComp-GTP / #38: Chemical | ChemComp-MG / #39: Chemical | ChemComp-GDP / |
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-Details
Has ligand of interest | N |
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-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: FILAMENT / 3D reconstruction method: single particle reconstruction |
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Sample preparation
Component | Name: Doublet microtubule / Type: COMPLEX / Entity ID: #1-#36 / Source: NATURAL |
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Molecular weight | Experimental value: NO |
Source (natural) | Organism: ![]() ![]() |
Buffer solution | pH: 7.4 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Specimen support | Details: unspecified |
Vitrification | Cryogen name: ETHANE |
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Electron microscopy imaging
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Alignment procedure: COMA FREE |
Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
Image recording | Electron dose: 60 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) |
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Processing
EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||
Particle selection | Num. of particles selected: 1267170 | ||||||||||||||||||||||||||||
3D reconstruction | Resolution: 3.4 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 80503 / Symmetry type: POINT | ||||||||||||||||||||||||||||
Atomic model building | Protocol: AB INITIO MODEL |