7EEB

Structure of the CatSpermasome


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 2.90 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Structure of a mammalian sperm cation channel complex.

Lin, S.Ke, M.Zhang, Y.Yan, Z.Wu, J.

(2021) Nature 595: 746-750

  • DOI: 10.1038/s41586-021-03742-6
  • Primary Citation of Related Structures:  
    7EEB

  • PubMed Abstract: 
  • The cation channel of sperm (CatSper) is essential for sperm motility and fertility 1,2 . CatSper comprises the pore-forming proteins CATSPER1-4 and multiple auxiliary subunits, including CATSPERβ, γ, δ, ε, ζ, and EFCAB9 1,3-9 . Here we report the cryo-electron microscopy (cryo-EM) structure of the CatSper complex isolated from mouse sperm ...

    The cation channel of sperm (CatSper) is essential for sperm motility and fertility 1,2 . CatSper comprises the pore-forming proteins CATSPER1-4 and multiple auxiliary subunits, including CATSPERβ, γ, δ, ε, ζ, and EFCAB9 1,3-9 . Here we report the cryo-electron microscopy (cryo-EM) structure of the CatSper complex isolated from mouse sperm. In the extracellular view, CATSPER1-4 conform to the conventional domain-swapped voltage-gated ion channel fold 10 , following a counterclockwise arrangement. The auxiliary subunits CATSPERβ, γ, δ and ε-each of which contains a single transmembrane segment and a large extracellular domain-constitute a pavilion-like structure that stabilizes the entire complex through interactions with CATSPER4, 1, 3 and 2, respectively. Our EM map reveals several previously uncharacterized components, exemplified by the organic anion transporter SLCO6C1. We name this channel-transporter ultracomplex the CatSpermasome. The assembly and organization details of the CatSpermasome presented here lay the foundation for the development of CatSpermasome-related treatments for male infertility and non-hormonal contraceptives.


    Organizational Affiliation

    Institute of Biology, Westlake Institute for Advanced Study, Hangzhou, China. wujianping@westlake.edu.cn.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Enhanced green fluorescent protein,Cation channel sperm-associated protein 1A955Human betaherpesvirus 5Mus musculus
This entity is chimeric
Mutation(s): 0 
Gene Names: egfpCatsper1
Membrane Entity: Yes 
UniProt
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Find proteins for C5MKY7 (Human cytomegalovirus)
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Cation channel sperm-associated protein 2B588Mus musculusMutation(s): 0 
Gene Names: Catsper2
Membrane Entity: Yes 
UniProt
Find proteins for A2ARP9 (Mus musculus)
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Cation channel sperm-associated protein 3C395Mus musculusMutation(s): 0 
Gene Names: Catsper3
Membrane Entity: Yes 
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IMPC:  MGI:1924106
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
Cation channel sperm-associated protein 4D442Mus musculusMutation(s): 0 
Gene Names: Catsper4
Membrane Entity: Yes 
UniProt
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Entity ID: 5
MoleculeChainsSequence LengthOrganismDetailsImage
Cation channel sperm-associated protein subunit betaE1109Mus musculusMutation(s): 0 
Gene Names: Catsperb
Membrane Entity: Yes 
UniProt
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Entity ID: 6
MoleculeChainsSequence LengthOrganismDetailsImage
Cation channel sperm-associated protein subunit gamma 2F1145Mus musculusMutation(s): 0 
Gene Names: Catsperg2Catsperg
Membrane Entity: Yes 
UniProt
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Entity ID: 7
MoleculeChainsSequence LengthOrganismDetailsImage
Cation channel sperm-associated protein subunit deltaG805Mus musculusMutation(s): 0 
Gene Names: CatsperdTmem146
Membrane Entity: Yes 
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Entity ID: 8
MoleculeChainsSequence LengthOrganismDetailsImage
Cation channel sperm-associated protein subunit epsilonH985Mus musculusMutation(s): 0 
Gene Names: CatspereCatspere1Gm7068
Membrane Entity: Yes 
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Entity ID: 9
MoleculeChainsSequence LengthOrganismDetailsImage
Kazal-like domain-containing proteinI [auth L]706Mus musculusMutation(s): 0 
Gene Names: Slco6c1
Membrane Entity: Yes 
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IMPC:  MGI:1921691
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Entity ID: 10
MoleculeChainsSequence LengthOrganismDetailsImage
Transmembrane protein 249J171Mus musculusMutation(s): 0 
Gene Names: Tmem249
Membrane Entity: Yes 
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Entity ID: 11
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Transmembrane protein 262K [auth M]116Mus musculusMutation(s): 0 
Gene Names: Tmem262BC048609
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Entity ID: 12
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UnknownL [auth N]28Mus musculusMutation(s): 0 
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Entity ID: 13
MoleculeChainsSequence LengthOrganismDetailsImage
EF-hand calcium-binding domain-containing protein 9M [auth I]216Mus musculusMutation(s): 0 
Gene Names: Efcab9
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Entity ID: 14
MoleculeChainsSequence LengthOrganismDetailsImage
Cation channel sperm-associated protein subunit zetaN [auth K]194Mus musculusMutation(s): 0 
Gene Names: CatsperzTex40
Membrane Entity: Yes 
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IMPC:  MGI:1914327
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Oligosaccharides

Help

Entity ID: 15
MoleculeChainsChain Length2D DiagramGlycosylation3D Interactions
beta-D-mannopyranose-(1-2)-beta-D-mannopyranose-(1-3)-[beta-D-mannopyranose-(1-3)-beta-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranoseO7N-Glycosylation Oligosaccharides Interaction
Entity ID: 16
MoleculeChainsChain Length2D DiagramGlycosylation3D Interactions
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranoseAA [auth a], DA [auth d], P, S, T, V, X2N-Glycosylation Oligosaccharides Interaction
Glycosylation Resources
GlyTouCan:  G42666HT
GlyCosmos:  G42666HT
GlyGen:  G42666HT
Entity ID: 17
MoleculeChainsChain Length2D DiagramGlycosylation3D Interactions
beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranoseBA [auth b], Q, R, U, W3N-Glycosylation Oligosaccharides Interaction
Glycosylation Resources
GlyTouCan:  G15407YE
GlyCosmos:  G15407YE
GlyGen:  G15407YE
Entity ID: 18
MoleculeChainsChain Length2D DiagramGlycosylation3D Interactions
beta-D-mannopyranose-(1-3)-[beta-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranoseCA [auth c], Y5N-Glycosylation Oligosaccharides Interaction
Glycosylation Resources
GlyTouCan:  G89225LT
GlyCosmos:  G89225LT
GlyGen:  G89225LT
Entity ID: 19
MoleculeChainsChain Length2D DiagramGlycosylation3D Interactions
beta-D-mannopyranose-(1-3)-[beta-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-6)-[beta-D-mannopyranose-(1-3)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranoseZ7N/A Oligosaccharides Interaction
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
9Z9 (Subject of Investigation/LOI)
Query on 9Z9

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FA [auth A], GA [auth A], HA [auth A](3beta,14beta,17beta,25R)-3-[4-methoxy-3-(methoxymethyl)butoxy]spirost-5-en
C34 H56 O5
CEEBZAXXSRFQIC-GZSGZGDASA-N
 Ligand Interaction
NAG (Subject of Investigation/LOI)
Query on NAG

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JA [auth E] , KA [auth E] , LA [auth E] , MA [auth E] , NA [auth F] , OA [auth G] , PA [auth G] , QA [auth G] , 
JA [auth E],  KA [auth E],  LA [auth E],  MA [auth E],  NA [auth F],  OA [auth G],  PA [auth G],  QA [auth G],  RA [auth H]
2-acetamido-2-deoxy-beta-D-glucopyranose
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
NA
Query on NA

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EA [auth A], IA [auth D]SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 2.90 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

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Entry History 

Deposition Data

  • Deposited Date: 2021-03-18 
  • Released Date: 2021-07-28 
  • Deposition Author(s): Wu, J.P., Ke, M.

Revision History  (Full details and data files)

  • Version 1.0: 2021-07-28
    Type: Initial release
  • Version 1.1: 2021-08-11
    Changes: Database references