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Open data
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Basic information
Entry | Database: PDB / ID: 8to0 | ||||||||||||
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Title | 48-nm repeating structure of doublets from mouse sperm flagella | ||||||||||||
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![]() | STRUCTURAL PROTEIN / Mammalian sperm / axoneme / microtubule-based structure / microtubule inner protein / non-motor proteins / cellular motility / fertility | ||||||||||||
Function / homology | ![]() ERKs are inactivated / receptor signaling protein tyrosine kinase inhibitor activity / protein localization to motile cilium / left/right pattern formation / axonemal microtubule doublet inner sheath / Microtubule-dependent trafficking of connexons from Golgi to the plasma membrane / Cilium Assembly / Sealing of the nuclear envelope (NE) by ESCRT-III / outer acrosomal membrane / epithelial cilium movement involved in determination of left/right asymmetry ...ERKs are inactivated / receptor signaling protein tyrosine kinase inhibitor activity / protein localization to motile cilium / left/right pattern formation / axonemal microtubule doublet inner sheath / Microtubule-dependent trafficking of connexons from Golgi to the plasma membrane / Cilium Assembly / Sealing of the nuclear envelope (NE) by ESCRT-III / 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 / sperm flagellum assembly / manchette assembly / axonemal B tubule inner sheath / axonemal A tubule inner sheath / Intraflagellar transport / manchette / Carboxyterminal post-translational modifications of tubulin / sperm axoneme assembly / protein polyglutamylation / inner dynein arm assembly / regulation of calcineurin-NFAT signaling cascade / positive regulation of feeding behavior / regulation of microtubule nucleation / COPI-independent Golgi-to-ER retrograde traffic / HSP90 chaperone cycle for steroid hormone receptors (SHR) in the presence of ligand / Transferases; Transferring phosphorus-containing groups / cerebrospinal fluid circulation / sperm principal piece / regulation of cilium beat frequency involved in ciliary motility / epithelial cilium movement involved in extracellular fluid movement / protein tyrosine/serine/threonine phosphatase activity / cilium movement involved in cell motility / COPI-mediated anterograde transport / Aggrephagy / regulation of store-operated calcium entry / Kinesins / 9+2 motile cilium / Mitotic Prometaphase / EML4 and NUDC in mitotic spindle formation / intraciliary transport / Resolution of Sister Chromatid Cohesion / PKR-mediated signaling / The role of GTSE1 in G2/M progression after G2 checkpoint / microtubule sliding / acrosomal membrane / RHO GTPases activate IQGAPs / cilium movement / Recycling pathway of L1 / axoneme assembly / ciliary transition zone / left/right axis specification / COPI-dependent Golgi-to-ER retrograde traffic / calcium ion sensor activity / axonemal microtubule / RHO GTPases Activate Formins / Separation of Sister Chromatids / organelle transport along microtubule / Hedgehog 'off' state / 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 / Recruitment of NuMA to mitotic centrosomes / Anchoring of the basal body to the plasma membrane / AURKA Activation by TPX2 / forebrain morphogenesis / gamma-tubulin ring complex / Regulation of PLK1 Activity at G2/M Transition / glial cell differentiation / cerebellar cortex morphogenesis / positive regulation of cilium assembly / dentate gyrus development / neuron projection arborization / flagellated sperm motility / cell projection organization / MHC class II antigen presentation / UTP biosynthetic process / CTP biosynthetic process / centrosome cycle / determination of left/right symmetry / intermediate filament / pyramidal neuron differentiation / positive regulation of cell motility / nucleoside diphosphate kinase activity / regulation of focal adhesion assembly / response to L-glutamate / GTP biosynthetic process / tubulin complex / smoothened signaling pathway / regulation of synapse organization / protein-serine/threonine phosphatase / AMP binding / receptor clustering / ciliary base / startle response / negative regulation of epidermal growth factor receptor signaling pathway / protein serine/threonine phosphatase activity Similarity search - Function | ||||||||||||
Biological species | ![]() ![]() | ||||||||||||
Method | ELECTRON MICROSCOPY / subtomogram averaging / cryo EM / Resolution: 7.7 Å | ||||||||||||
![]() | Chen, Z. / Shiozak, M. / Hass, K.M. / Skinner, W. / Zhao, S. / Guo, C. / Polacco, B.J. / Yu, Z. / Krogan, N.J. / Kaake, R.M. ...Chen, Z. / Shiozak, M. / Hass, K.M. / Skinner, W. / Zhao, S. / Guo, C. / Polacco, B.J. / Yu, Z. / Krogan, N.J. / Kaake, R.M. / Vale, R.D. / Agard, D.A. | ||||||||||||
Funding support | ![]()
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![]() | ![]() Title: De novo protein identification in mammalian sperm using in situ cryoelectron tomography and AlphaFold2 docking. Authors: Zhen Chen / Momoko Shiozaki / Kelsey M Haas / Will M Skinner / Shumei Zhao / Caiying Guo / Benjamin J Polacco / Zhiheng Yu / Nevan J Krogan / Polina V Lishko / Robyn M Kaake / Ronald D Vale / David A Agard / ![]() Abstract: To understand the molecular mechanisms of cellular pathways, contemporary workflows typically require multiple techniques to identify proteins, track their localization, and determine their ...To understand the molecular mechanisms of cellular pathways, contemporary workflows typically require multiple techniques to identify proteins, track their localization, and determine their structures in vitro. Here, we combined cellular cryoelectron tomography (cryo-ET) and AlphaFold2 modeling to address these questions and understand how mammalian sperm are built in situ. Our cellular cryo-ET and subtomogram averaging provided 6.0-Å reconstructions of axonemal microtubule structures. The well-resolved tertiary structures allowed us to unbiasedly match sperm-specific densities with 21,615 AlphaFold2-predicted protein models of the mouse proteome. We identified Tektin 5, CCDC105, and SPACA9 as novel microtubule-associated proteins. These proteins form an extensive interaction network crosslinking the lumen of axonemal doublet microtubules, suggesting their roles in modulating the mechanical properties of the filaments. Indeed, Tekt5 -/- sperm possess more deformed flagella with 180° bends. Together, our studies presented a cellular visual proteomics workflow and shed light on the in vivo functions of Tektin 5. | ||||||||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 20.2 MB | Display | ![]() |
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PDB format | ![]() | Display | ![]() | |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 4.6 MB | Display | ![]() |
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Full document | ![]() | 4.6 MB | Display | |
Data in XML | ![]() | 2.3 MB | Display | |
Data in CIF | ![]() | 4.5 MB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 41431MC C: citing same article ( M: map data used to model this data |
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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
-Cilia- and flagella-associated protein ... , 9 types, 27 molecules 0734AB89AyBHFhFiFjFkFlFmFnBAAcAxdBGBaBoEHEWEl
#1: Protein | Mass: 26633.035 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #10: Protein | Mass: 62036.609 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #12: Protein | | Mass: 12278.145 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #17: Protein | Mass: 23062.510 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #18: Protein | Mass: 34433.383 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #22: Protein | Mass: 22781.389 Da / Num. of mol.: 7 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #27: Protein | Mass: 65962.016 Da / Num. of mol.: 5 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #28: Protein | Mass: 68322.164 Da / Num. of mol.: 3 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #32: Protein | Mass: 18960.092 Da / Num. of mol.: 3 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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+Protein , 22 types, 436 molecules LMIJKNPRTVXZnprtvxzBQBSBUBWBYAWAYAjAlAnAp...
-EF-hand domain-containing family member ... , 2 types, 6 molecules 12FgFSFoFv
#6: Protein | Mass: 95891.961 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #21: Protein | Mass: 87758.023 Da / Num. of mol.: 4 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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-Piercer of microtubule wall ... , 2 types, 2 molecules GFw
#25: Protein | Mass: 13728.513 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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#35: Protein | Mass: 18862.852 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: CELL / 3D reconstruction method: subtomogram averaging |
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Sample preparation
Component | Name: Mouse sperm / Type: CELL / Entity ID: all / Source: NATURAL |
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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: FEI TITAN KRIOS |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 6000 nm / Nominal defocus min: 2000 nm |
Image recording | Electron dose: 4 e/Å2 / Avg electron dose per subtomogram: 100 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) |
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Processing
EM software | Name: RELION / Version: 4.0-beta2 / Category: 3D reconstruction |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION |
Symmetry | Point symmetry: C1 (asymmetric) |
3D reconstruction | Resolution: 7.7 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 12848 / Symmetry type: POINT |
EM volume selection | Details: 32288 particles were initially picked every 24 nm along the microtubules. Num. of tomograms: 76 / Num. of volumes extracted: 32288 |