7SC0

CryoEM structure of the Caveolin-1 8S complex


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.40 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

Molecular architecture of the human caveolin-1 complex.

Porta, J.C.Han, B.Gulsevin, A.Chung, J.M.Peskova, Y.Connolly, S.Mchaourab, H.S.Meiler, J.Karakas, E.Kenworthy, A.K.Ohi, M.D.

(2022) Sci Adv 8: eabn7232-eabn7232

  • DOI: https://doi.org/10.1126/sciadv.abn7232
  • Primary Citation of Related Structures:  
    7SC0

  • PubMed Abstract: 

    Membrane-sculpting proteins shape the morphology of cell membranes and facilitate remodeling in response to physiological and environmental cues. Complexes of the monotopic membrane protein caveolin function as essential curvature-generating components of caveolae, flask-shaped invaginations that sense and respond to plasma membrane tension. However, the structural basis for caveolin's membrane remodeling activity is currently unknown. Here, we show that, using cryo-electron microscopy, the human caveolin-1 complex is composed of 11 protomers organized into a tightly packed disc with a flat membrane-embedded surface. The structural insights suggest a previously unrecognized mechanism for how membrane-sculpting proteins interact with membranes and reveal how key regions of caveolin-1, including its scaffolding, oligomerization, and intramembrane domains, contribute to its function.


  • Organizational Affiliation

    Life Sciences Institute, University of Michigan, Ann Arbor, MI, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Caveolin-1
A, B, C, D, E
A, B, C, D, E, F, G, H, I, J, K
178Homo sapiensMutation(s): 0 
Gene Names: CAV1CAV
Membrane Entity: Yes 
UniProt & NIH Common Fund Data Resources
Find proteins for Q03135 (Homo sapiens)
Explore Q03135 
Go to UniProtKB:  Q03135
PHAROS:  Q03135
GTEx:  ENSG00000105974 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ03135
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.40 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
EM Software:
TaskSoftware PackageVersion
RECONSTRUCTIONcryoSPARC3.2.0
MODEL REFINEMENTPHENIX1.19.1_4122

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Heart, Lung, and Blood Institute (NIH/NHLBI)United StatesR01HL144131

Revision History  (Full details and data files)

  • Version 1.0: 2022-05-25
    Type: Initial release
  • Version 1.1: 2024-06-05
    Changes: Data collection