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Open data
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Basic information
| Entry | ![]()  | |||||||||
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| Title | Overall consensus map of the mouse sperm doublet microtubule | |||||||||
 Map data | Consensus map of the mouse sperm doublet microtubule | |||||||||
 Sample | 
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 Keywords | doublet microtubule / STRUCTURAL PROTEIN | |||||||||
| Biological species | ![]()  | |||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 3.52 Å | |||||||||
 Authors | Zhou LN / Gui M / Wu JP | |||||||||
| Funding support |   China, 1 items 
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 Citation |  Journal: Cell / Year: 2023Title: Structures of sperm flagellar doublet microtubules expand the genetic spectrum of male infertility. Authors: Lunni Zhou / Haobin Liu / Siyu Liu / Xiaoyu Yang / Yue Dong / Yun Pan / Zhuang Xiao / Beihong Zheng / Yan Sun / Pengyu Huang / Xixi Zhang / Jin Hu / Rui Sun / Shan Feng / Yi Zhu / Mingxi Liu ...Authors: Lunni Zhou / Haobin Liu / Siyu Liu / Xiaoyu Yang / Yue Dong / Yun Pan / Zhuang Xiao / Beihong Zheng / Yan Sun / Pengyu Huang / Xixi Zhang / Jin Hu / Rui Sun / Shan Feng / Yi Zhu / Mingxi Liu / Miao Gui / Jianping Wu / ![]() Abstract: Sperm motility is crucial for successful fertilization. Highly decorated doublet microtubules (DMTs) form the sperm tail skeleton, which propels the movement of spermatozoa. Using cryo-electron ...Sperm motility is crucial for successful fertilization. Highly decorated doublet microtubules (DMTs) form the sperm tail skeleton, which propels the movement of spermatozoa. Using cryo-electron microscopy (cryo-EM) and artificial intelligence (AI)-based modeling, we determined the structures of mouse and human sperm DMTs and built an atomic model of the 48-nm repeat of the mouse sperm DMT. Our analysis revealed 47 DMT-associated proteins, including 45 microtubule inner proteins (MIPs). We identified 10 sperm-specific MIPs, including seven classes of Tektin5 in the lumen of the A tubule and FAM166 family members that bind the intra-tubulin interfaces. Interestingly, the human sperm DMT lacks some MIPs compared with the mouse sperm DMT. We also discovered variants in 10 distinct MIPs associated with a subtype of asthenozoospermia characterized by impaired sperm motility without evident morphological abnormalities. Our study highlights the conservation and tissue/species specificity of DMTs and expands the genetic spectrum of male infertility.  | |||||||||
| History | 
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Structure visualization
| Supplemental images | 
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Downloads & links
-EMDB archive
| Map data |  emd_36498.map.gz | 1.8 GB |  EMDB map data format | |
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| Header (meta data) |  emd-36498-v30.xml emd-36498.xml | 19.3 KB 19.3 KB  | Display Display  |  EMDB header | 
| Images |  emd_36498.png | 202.9 KB | ||
| Others |  emd_36498_half_map_1.map.gz emd_36498_half_map_2.map.gz | 1.8 GB 1.8 GB  | ||
| Archive directory |  http://ftp.pdbj.org/pub/emdb/structures/EMD-36498 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-36498 | HTTPS FTP  | 
-Validation report
| Summary document |  emd_36498_validation.pdf.gz | 1.3 MB | Display |  EMDB validaton report | 
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| Full document |  emd_36498_full_validation.pdf.gz | 1.3 MB | Display | |
| Data in XML |  emd_36498_validation.xml.gz | 26.2 KB | Display | |
| Data in CIF |  emd_36498_validation.cif.gz | 31 KB | Display | |
| Arichive directory |  https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-36498 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-36498 | HTTPS FTP  | 
-Related structure data
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Links
| EMDB pages |  EMDB (EBI/PDBe) /  EMDataResource | 
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Map
| File |  Download / File: emd_36498.map.gz / Format: CCP4 / Size: 1.9 GB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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| Annotation | Consensus map of the mouse sperm doublet microtubule | ||||||||||||||||||||||||||||||||||||
| Projections & slices | Image control
 
 Images are generated by Spider.  | ||||||||||||||||||||||||||||||||||||
| Voxel size | X=Y=Z: 1.087 Å | ||||||||||||||||||||||||||||||||||||
| Density | 
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
| Details | EMDB XML: 
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-Supplemental data
-Half map: #1
| File | emd_36498_half_map_1.map | ||||||||||||
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| Projections & Slices | 
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| Density Histograms | 
-Half map: #2
| File | emd_36498_half_map_2.map | ||||||||||||
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| Projections & Slices | 
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| Density Histograms | 
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Sample components
-Entire : Mouse sperm DMT
| Entire | Name: Mouse sperm DMT | 
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| Components | 
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-Supramolecule #1: Mouse sperm DMT
| Supramolecule | Name: Mouse sperm DMT / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#49 | 
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| Source (natural) | Organism: ![]()  | 
-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: 7.5 | 
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| Vitrification | Cryogen name: ETHANE / Instrument: FEI VITROBOT MARK IV | 
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Electron microscopy
| Microscope | FEI TITAN KRIOS | 
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| Image recording | Film or detector model: GATAN K3 (6k x 4k) / Number real images: 25135 / Average exposure time: 2.56 sec. / Average electron dose: 50.0 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: 2.6 µm / Nominal defocus min: 1.5 µm / Nominal magnification: 81000 | 
| Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER | 
| 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: 3.52 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 95290 | 
| Initial angle assignment | Type: NOT APPLICABLE | 
| Final angle assignment | Type: NOT APPLICABLE | 
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Keywords
Authors
China, 1 items 
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FIELD EMISSION GUN

