8WZB

RS head-neck monomer


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.28 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


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Literature

Multi-scale structures of the mammalian radial spoke and divergence of axonemal complexes in ependymal cilia.

Meng, X.Xu, C.Li, J.Qiu, B.Luo, J.Hong, Q.Tong, Y.Fang, C.Feng, Y.Ma, R.Shi, X.Lin, C.Pan, C.Zhu, X.Yan, X.Cong, Y.

(2024) Nat Commun 15: 362-362

  • DOI: https://doi.org/10.1038/s41467-023-44577-1
  • Primary Citation of Related Structures:  
    8WZB, 8X2U

  • PubMed Abstract: 

    Radial spokes (RS) transmit mechanochemical signals between the central pair (CP) and axonemal dynein arms to coordinate ciliary motility. Atomic-resolution structures of metazoan RS and structures of axonemal complexes in ependymal cilia, whose rhythmic beating drives the circulation of cerebrospinal fluid, however, remain obscure. Here, we present near-atomic resolution cryo-EM structures of mouse RS head-neck complex in both monomer and dimer forms and reveal the intrinsic flexibility of the dimer. We also map the genetic mutations related to primary ciliary dyskinesia and asthenospermia on the head-neck complex. Moreover, we present the cryo-ET and sub-tomogram averaging map of mouse ependymal cilia and build the models for RS1-3, IDAs, and N-DRC. Contrary to the conserved RS structure, our cryo-ET map reveals the lack of IDA-b/c/e and the absence of Tektin filaments within the A-tubule of doublet microtubules in ependymal cilia compared with mammalian respiratory cilia and sperm flagella, further exemplifying the structural diversity of mammalian motile cilia. Our findings shed light on the stepwise mammalian RS assembly mechanism, the coordinated rigid and elastic RS-CP interaction modes beneficial for the regulation of asymmetric ciliary beating, and also facilitate understanding on the etiology of ciliary dyskinesia-related ciliopathies and on the ependymal cilia in the development of hydrocephalus.


  • Organizational Affiliation

    Shanghai Nanoport, Thermofisher Scientific, Shanghai, China.


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
DPY30 domain containing 2159Mus musculusMutation(s): 0 
Gene Names: Dydc2
UniProt
Find proteins for Q9D3X8 (Mus musculus)
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UniProt GroupQ9D3X8
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
DnaJ homolog subfamily B member 13
B, C
349Mus musculusMutation(s): 0 
Gene Names: Dnajb13TsargTsarg3Tsarg6
UniProt
Find proteins for Q80Y75 (Mus musculus)
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UniProt GroupQ80Y75
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
Radial spoke head protein 3 homolog B389Mus musculusMutation(s): 0 
Gene Names: Rsph3bRshl2Rshl2b
UniProt & NIH Common Fund Data Resources
Find proteins for Q9DA80 (Mus musculus)
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IMPC:  MGI:3630308
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UniProt GroupQ9DA80
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Entity ID: 4
MoleculeChains Sequence LengthOrganismDetailsImage
Nucleoside diphosphate kinase homolog 5225Mus musculusMutation(s): 0 
Gene Names: Nme5
UniProt
Find proteins for Q99MH5 (Mus musculus)
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UniProt GroupQ99MH5
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Entity ID: 5
MoleculeChains Sequence LengthOrganismDetailsImage
Radial spoke head 1 homologF,
K [auth I]
313Mus musculusMutation(s): 0 
Gene Names: Rsph1Tsga2
UniProt
Find proteins for Q8VIG3 (Mus musculus)
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UniProt GroupQ8VIG3
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Entity ID: 6
MoleculeChains Sequence LengthOrganismDetailsImage
Radial spoke head protein 4 homolog AG,
I [auth S]
716Mus musculusMutation(s): 0 
Gene Names: Rsph4aRshl3
UniProt
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Entity ID: 7
MoleculeChains Sequence LengthOrganismDetailsImage
Radial spoke head protein 9 homologH,
J [auth c]
276Mus musculusMutation(s): 0 
Gene Names: Rsph9
UniProt & NIH Common Fund Data Resources
Find proteins for Q9D9V4 (Mus musculus)
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IMPC:  MGI:1922814
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UniProt GroupQ9D9V4
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Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.28 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Chinese Academy of SciencesChina--

Revision History  (Full details and data files)

  • Version 1.0: 2024-02-07
    Type: Initial release