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- PDB-9cpc: Atomic model of porcine brain ventricles cilia doublet microtubul... -
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Open data
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Basic information
Entry | Database: PDB / ID: 9cpc | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Title | Atomic model of porcine brain ventricles cilia doublet microtubule (48-nm periodicity) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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![]() | STRUCTURAL PROTEIN / axoneme / cilia / microtubule / dynein / brain ventricle / doublet microtubule (DMT) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Function / homology | ![]() outer dynein arm docking complex / regulation of cilium beat frequency / determination of heart left/right asymmetry / protein localization to motile cilium / 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 ...outer dynein arm docking complex / regulation of cilium beat frequency / determination of heart left/right asymmetry / protein localization to motile cilium / 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 / axonemal B tubule inner sheath / axonemal A tubule inner sheath / inner dynein arm assembly / regulation of calcineurin-NFAT signaling cascade / sperm axoneme assembly / regulation of microtubule nucleation / positive regulation of feeding behavior / outer dynein arm assembly / cilium-dependent cell motility / 9+0 non-motile cilium / sperm principal piece / regulation of cilium beat frequency involved in ciliary motility / cerebrospinal fluid circulation / epithelial cilium movement involved in extracellular fluid movement / 9+2 motile cilium / regulation of store-operated calcium entry / intraciliary transport / regulation of cilium assembly / axoneme assembly / microtubule sliding / ciliary transition zone / cilium movement / left/right axis specification / calcium ion sensor activity / axonemal microtubule / ciliary tip / gamma-tubulin ring complex / ventricular system development / ciliary rootlet / manchette / positive regulation of cilium assembly / seminiferous tubule development / flagellated sperm motility / UTP biosynthetic process / CTP biosynthetic process / determination of left/right symmetry / intermediate filament / positive regulation of cell motility / nucleoside diphosphate kinase activity / motile cilium / GTP biosynthetic process / ciliary base / receptor clustering / regulation of neuron projection development / cerebral cortex cell migration / microtubule organizing center / regulation of cell division / mitotic cytokinesis / homeostasis of number of cells / axoneme / cilium assembly / spermatid development / glial cell projection / alpha-tubulin binding / single fertilization / sperm flagellum / beta-tubulin binding / microtubule-based process / cytoplasmic microtubule / sperm midpiece / Hsp70 protein binding / 3'-5' exonuclease activity / centriole / acrosomal vesicle / lung development / cellular response to leukemia inhibitory factor / mitotic spindle organization / meiotic cell cycle / Hsp90 protein binding / G protein-coupled receptor binding / brain development / structural constituent of cytoskeleton / SH3 domain binding / centriolar satellite / microtubule cytoskeleton organization / multicellular organism growth / cell morphogenesis / spindle pole / mitotic spindle / intracellular protein localization / nuclear envelope / mitotic cell cycle / actin binding / heart development / cell body / microtubule cytoskeleton / vesicle / spermatogenesis / microtubule binding / gene expression Similarity search - Function | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Biological species | ![]() ![]() | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.65 Å | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
![]() | Sun, C. / Zeng, J. / Zhang, R. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Funding support | ![]()
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![]() | ![]() Title: Structural diversity of axonemes across mammalian motile cilia. Authors: Miguel Ricardo Leung / Chen Sun / Jianwei Zeng / Jacob R Anderson / Qingwei Niu / Wei Huang / Willem E M Noteborn / Alan Brown / Tzviya Zeev-Ben-Mordehai / Rui Zhang / ![]() ![]() Abstract: Reproduction, development and homeostasis depend on motile cilia, whose rhythmic beating is powered by a microtubule-based molecular machine called the axoneme. Although an atomic model of the ...Reproduction, development and homeostasis depend on motile cilia, whose rhythmic beating is powered by a microtubule-based molecular machine called the axoneme. Although an atomic model of the axoneme is available for the alga Chlamydomonas reinhardtii, structures of mammalian axonemes are incomplete. Furthermore, we do not fully understand how molecular structures of axonemes vary across motile-ciliated cell types in the body. Here we use cryoelectron microscopy, cryoelectron tomography and proteomics to resolve the 96-nm modular repeat of axonemal doublet microtubules (DMTs) from both sperm flagella and epithelial cilia of the oviduct, brain ventricles and respiratory tract. We find that sperm DMTs are the most specialized, with epithelial cilia having only minor differences across tissues. We build a model of the mammalian sperm DMT, defining the positions and interactions of 181 proteins including 34 newly identified proteins. We elucidate the composition of radial spoke 3 and uncover binding sites of kinases associated with regeneration of ATP and regulation of ciliary motility. We discover a sperm-specific, axoneme-tethered T-complex protein ring complex (TRiC) chaperone that may contribute to construction or maintenance of the long flagella of mammalian sperm. We resolve axonemal dyneins in their prestroke states, illuminating conformational changes that occur during ciliary movement. Our results illustrate how elements of chemical and mechanical regulation are embedded within the axoneme, providing valuable resources for understanding the aetiology of ciliopathy and infertility, and exemplifying the discovery power of modern structural biology. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 23.2 MB | Display | ![]() |
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PDB format | ![]() | Display | ![]() | |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 21.2 MB | Display | ![]() |
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Full document | ![]() | 24.5 MB | Display | |
Data in XML | ![]() | 3.6 MB | Display | |
Data in CIF | ![]() | 5.3 MB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 45802MC ![]() 9cpbC ![]() 9fqrC M: map data used to model this data C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
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Assembly
Deposited unit | ![]()
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Components
+Protein , 23 types, 332 molecules 1A1B1F1G1H1I1J1P1Q2I2J2K2M2N2O2P2Q2R3A3B3C3E3F3G3H3J3K3L3M3O...
-Outer dynein ... , 2 types, 5 molecules 1C1D1L1M1N
#2: Protein | Mass: 78707.766 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #5: Protein | Mass: 72117.602 Da / Num. of mol.: 3 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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-Cilia- and flagella-associated protein ... , 4 types, 14 molecules 1S1T1U1W1X1Y1Z2T2U2V2W2X5Q5R
#7: Protein | Mass: 68199.891 Da / Num. of mol.: 3 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #8: Protein | Mass: 65621.914 Da / Num. of mol.: 4 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #13: Protein | Mass: 22781.389 Da / Num. of mol.: 5 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #34: Protein | Mass: 62200.133 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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-Cilia and flagella associated protein ... , 6 types, 13 molecules 2B2C2E2F2G4Y4Z5L5W5X5Y5Z6A
#9: Protein | Mass: 66292.844 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #10: Protein | Mass: 19304.631 Da / Num. of mol.: 3 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #27: Protein | Mass: 35381.199 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #32: Protein | | Mass: 12197.253 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #36: Protein | Mass: 32726.729 Da / Num. of mol.: 4 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #37: Protein | | Mass: 16325.543 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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-EF-hand domain ... , 2 types, 5 molecules 4D4E4F5I5J
#21: Protein | Mass: 74113.344 Da / Num. of mol.: 3 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #31: Protein | Mass: 98402.180 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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-Ciliary microtubule inner protein ... , 2 types, 6 molecules 4M4N4P4Q4R4O
#23: Protein | Mass: 30596.564 Da / Num. of mol.: 5 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #24: Protein | | Mass: 28407.986 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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-Chromosome 1 ... , 2 types, 2 molecules 5B5G
#28: Protein | Mass: 26817.912 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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#30: Protein | Mass: 13888.583 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
-Non-polymers , 2 types, 269 molecules 


#42: Chemical | ChemComp-GTP / #43: Chemical | ChemComp-GDP / |
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-Details
Has ligand of interest | Y |
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Has protein modification | Y |
-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: cilia from porcine brain ventricles / Type: ORGANELLE OR CELLULAR COMPONENT / Entity ID: #1-#19, #21-#41, #20 / 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 |
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: TFS KRIOS |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2500 nm / Nominal defocus min: 500 nm |
Image recording | Electron dose: 50 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) |
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Processing
CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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3D reconstruction | Resolution: 3.65 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 113809 / Symmetry type: POINT |