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Yorodumi- EMDB-40619: cryo-EM structure of sea urchin sperm doublet microtubule (48-nm ... -
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Basic information
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| Title | cryo-EM structure of sea urchin sperm doublet microtubule (48-nm periodicity) | |||||||||
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Keywords | sperm / doublet microtubule / DMT / microtubule inner protein / cilia / flagella / FAP / CFAP / MIP / MAP / cytoskeleton / tublin / sea urchin / TEX / Tektin / SAXO / ODF / SPATA / RIB / STRUCTURAL PROTEIN | |||||||||
| Function / homology | Function and homology informationaxonemal A tubule inner sheath / cilium-dependent cell motility / regulation of cilium beat frequency involved in ciliary motility / cilium movement involved in cell motility / axoneme assembly / axonemal microtubule / cilium organization / flagellated sperm motility / nucleoside-diphosphate kinase / UTP biosynthetic process ...axonemal A tubule inner sheath / cilium-dependent cell motility / regulation of cilium beat frequency involved in ciliary motility / cilium movement involved in cell motility / axoneme assembly / axonemal microtubule / cilium organization / flagellated sperm motility / nucleoside-diphosphate kinase / UTP biosynthetic process / CTP biosynthetic process / positive regulation of cell motility / nucleoside diphosphate kinase activity / motile cilium / GTP biosynthetic process / ciliary base / regulation of neuron projection development / microtubule organizing center / mitotic cytokinesis / axoneme / cilium assembly / sperm flagellum / phosphatase binding / alpha-tubulin binding / microtubule-based process / cytoplasmic microtubule / Hsp70 protein binding / acrosomal vesicle / mitotic spindle organization / meiotic cell cycle / cell projection / Hsp90 protein binding / structural constituent of cytoskeleton / microtubule cytoskeleton organization / mitotic spindle / mitotic cell cycle / microtubule cytoskeleton / spermatogenesis / microtubule binding / vesicle / microtubule / cytoskeleton / calmodulin binding / neuron projection / hydrolase activity / cilium / ciliary basal body / GTPase activity / calcium ion binding / centrosome / GTP binding / positive regulation of transcription by RNA polymerase II / ATP binding / metal ion binding / nucleus / plasma membrane / cytoplasm / cytosol Similarity search - Function | |||||||||
| Biological species | ![]() | |||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 3.3 Å | |||||||||
Authors | Zeng J / Zhang R | |||||||||
| Funding support | United States, 1 items
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Citation | Journal: Cell / Year: 2023Title: Structural specializations of the sperm tail. Authors: Miguel Ricardo Leung / Jianwei Zeng / Xiangli Wang / Marc C Roelofs / Wei Huang / Riccardo Zenezini Chiozzi / Johannes F Hevler / Albert J R Heck / Susan K Dutcher / Alan Brown / Rui Zhang / ...Authors: Miguel Ricardo Leung / Jianwei Zeng / Xiangli Wang / Marc C Roelofs / Wei Huang / Riccardo Zenezini Chiozzi / Johannes F Hevler / Albert J R Heck / Susan K Dutcher / Alan Brown / Rui Zhang / Tzviya Zeev-Ben-Mordehai / ![]() Abstract: Sperm motility is crucial to reproductive success in sexually reproducing organisms. Impaired sperm movement causes male infertility, which is increasing globally. Sperm are powered by a microtubule- ...Sperm motility is crucial to reproductive success in sexually reproducing organisms. Impaired sperm movement causes male infertility, which is increasing globally. Sperm are powered by a microtubule-based molecular machine-the axoneme-but it is unclear how axonemal microtubules are ornamented to support motility in diverse fertilization environments. Here, we present high-resolution structures of native axonemal doublet microtubules (DMTs) from sea urchin and bovine sperm, representing external and internal fertilizers. We identify >60 proteins decorating sperm DMTs; at least 15 are sperm associated and 16 are linked to infertility. By comparing DMTs across species and cell types, we define core microtubule inner proteins (MIPs) and analyze evolution of the tektin bundle. We identify conserved axonemal microtubule-associated proteins (MAPs) with unique tubulin-binding modes. Additionally, we identify a testis-specific serine/threonine kinase that links DMTs to outer dense fibers in mammalian sperm. Our study provides structural foundations for understanding sperm evolution, motility, and dysfunction at a molecular level. | |||||||||
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Structure visualization
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Downloads & links
-EMDB archive
| Map data | emd_40619.map.gz | 151.4 MB | EMDB map data format | |
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| Header (meta data) | emd-40619-v30.xml emd-40619.xml | 80 KB 80 KB | Display Display | EMDB header |
| Images | emd_40619.png | 121.1 KB | ||
| Filedesc metadata | emd-40619.cif.gz | 19.2 KB | ||
| Others | emd_40619_additional_1.map.gz emd_40619_half_map_1.map.gz emd_40619_half_map_2.map.gz | 482.5 MB 466.3 MB 466.3 MB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-40619 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-40619 | HTTPS FTP |
-Validation report
| Summary document | emd_40619_validation.pdf.gz | 1.2 MB | Display | EMDB validaton report |
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| Full document | emd_40619_full_validation.pdf.gz | 1.2 MB | Display | |
| Data in XML | emd_40619_validation.xml.gz | 19.2 KB | Display | |
| Data in CIF | emd_40619_validation.cif.gz | 23.1 KB | Display | |
| Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-40619 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-40619 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 8snbMC ![]() 8otzC ![]() 8ou0C C: citing same article ( M: atomic model generated by this map |
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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_40619.map.gz / Format: CCP4 / Size: 512 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: 1.34 Å | ||||||||||||||||||||||||||||||||||||
| Density |
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
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-Supplemental data
-Additional map: #1
| File | emd_40619_additional_1.map | ||||||||||||
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-Half map: #2
| File | emd_40619_half_map_1.map | ||||||||||||
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-Half map: #1
| File | emd_40619_half_map_2.map | ||||||||||||
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Sample components
+Entire : sea urchin sperm doublet microtubule
+Supramolecule #1: sea urchin sperm doublet microtubule
+Macromolecule #1: CFAP96(C4orf47)
+Macromolecule #2: Coiled-coil domain-containing protein 105
+Macromolecule #3: Coiled-coil domain-containing protein 81
+Macromolecule #4: FAM166C
+Macromolecule #5: Protein FAM166B
+Macromolecule #6: CFAP144(FAM183A)
+Macromolecule #7: Outer dense fiber protein 3
+Macromolecule #8: Tex33
+Macromolecule #9: C20Orf85
+Macromolecule #10: ATP6V1FNB
+Macromolecule #11: Tex26(LOC100888047)
+Macromolecule #12: Meiosis-specific nuclear structural protein 1
+Macromolecule #13: Enkurin domain-containing protein
+Macromolecule #14: CFAP107
+Macromolecule #15: Cilia- and flagella-associated protein 126
+Macromolecule #16: Flagellar FliJ protein
+Macromolecule #17: Meiosis-specific nuclear structural protein 1
+Macromolecule #18: Cilia- and flagella-associated protein 161
+Macromolecule #19: CFA20 domain-containing protein
+Macromolecule #20: EF-hand domain-containing protein
+Macromolecule #21: Trichohyalin-plectin-homology domain-containing protein
+Macromolecule #22: CFAP276
+Macromolecule #23: Cilia- and flagella-associated protein 45
+Macromolecule #24: Cilia- and flagella-associated protein 52
+Macromolecule #25: Trichohyalin-plectin-homology domain-containing protein
+Macromolecule #26: Nucleoside diphosphate kinase
+Macromolecule #27: Cilia- and flagella-associated protein 77
+Macromolecule #28: Cilia- and flagella-associated protein 97
+Macromolecule #29: HeLo_like_N(LOC577943)
+Macromolecule #30: Outer dense fiber protein 3
+Macromolecule #31: PACRG
+Macromolecule #32: Pierce1
+Macromolecule #33: Protein phosphatase 1 regulatory subunit 32
+Macromolecule #34: RIB35
+Macromolecule #35: RIB43A-like with coiled-coils protein 2
+Macromolecule #36: EF-hand domain-containing family member C2
+Macromolecule #37: Flagellar protofilament ribbon protein rib74
+Macromolecule #38: SAXO3(LOC115918676)
+Macromolecule #39: TEPP protein
+Macromolecule #40: SPATA48
+Macromolecule #41: Sperm-associated antigen 8
+Macromolecule #42: Testicular haploid expressed gene protein-like
+Macromolecule #43: Tektin
+Macromolecule #44: Tektin
+Macromolecule #45: Tektin
+Macromolecule #46: Tex43
+Macromolecule #47: Tex36(CFAP95, C9orf135)
+Macromolecule #48: CFAP90(C5orf49)
+Macromolecule #49: Tex49
+Macromolecule #50: Tex49_homologue(LOC580808)
+Macromolecule #51: CFAP68(UPF0686, C11orf1)
+Macromolecule #52: SPATA45
+Macromolecule #53: C4orf45
+Macromolecule #54: Tubulin alpha chain
+Macromolecule #55: Tubulin beta chain
+Macromolecule #56: GUANOSINE-5'-TRIPHOSPHATE
+Macromolecule #57: MAGNESIUM ION
+Macromolecule #58: GUANOSINE-5'-DIPHOSPHATE
-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: 7.4 |
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| Vitrification | Cryogen name: ETHANE |
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Electron microscopy
| Microscope | FEI TITAN KRIOS |
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| Image recording | Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 34.0 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: 2.5 µm / Nominal defocus min: 0.5 µm |
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
| Startup model | Type of model: EMDB MAP EMDB ID: |
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| Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 3.3 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 127673 |
| Initial angle assignment | Type: MAXIMUM LIKELIHOOD |
| Final angle assignment | Type: MAXIMUM LIKELIHOOD |
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About Yorodumi



Keywords
Authors
United States, 1 items
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FIELD EMISSION GUN

