6YAF

AP2 on a membrane containing tyrosine-based cargo peptide

Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 9.10 Å
  • Aggregation State: 3D ARRAY 
  • Reconstruction Method: SUBTOMOGRAM AVERAGING 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history. 


Literature

Architecture of the AP2/clathrin coat on the membranes of clathrin-coated vesicles.

Kovtun, O., Dickson, V.K., Kelly, B.T., Owen, D.J., Briggs, J.A.G.

(2020) Sci Adv 6: eaba8381-eaba8381

  • DOI: 10.1126/sciadv.aba8381
  • Primary Citation of Related Structures:  
    6YAE, 6YAF, 6YAH, 6YAI

  • PubMed Abstract: 

    • Clathrin-mediated endocytosis (CME) is crucial for modulating the protein composition of a cell's plasma membrane. Clathrin forms a cage-like, polyhedral outer scaffold around a vesicle, to which cargo-selecting clathrin adaptors are attached. Adaptor protein complex (AP2) is the key adaptor in CME ...

    Clathrin-mediated endocytosis (CME) is crucial for modulating the protein composition of a cell's plasma membrane. Clathrin forms a cage-like, polyhedral outer scaffold around a vesicle, to which cargo-selecting clathrin adaptors are attached. Adaptor protein complex (AP2) is the key adaptor in CME. Crystallography has shown AP2 to adopt a range of conformations. Here, we used cryo-electron microscopy, tomography, and subtomogram averaging to determine structures, interactions, and arrangements of clathrin and AP2 at the key steps of coat assembly, from AP2 in solution to membrane-assembled clathrin-coated vesicles (CCVs). AP2 binds cargo and PtdIns(4,5) P 2 (phosphatidylinositol 4,5-bisphosphate)-containing membranes via multiple interfaces, undergoing conformational rearrangement from its cytosolic state. The binding mode of AP2 β2 appendage into the clathrin lattice in CCVs and buds implies how the adaptor structurally modulates coat curvature and coat disassembly.

    Organizational Affiliation: 

    Structural and Computational Biology Unit, European Molecular Biology Laboratory, 69117 Heidelberg , Germany.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
AP-2 complex subunit alpha-2A628Rattus norvegicusMutation(s): 0 
Gene Names: Ap2a2, Adtab
UniProt
Find proteins for P18484 (Rattus norvegicus)
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UniProt GroupP18484
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
AP-2 complex subunit betaB944Homo sapiensMutation(s): 0 
Gene Names: AP2B1, ADTB2, CLAPB1
UniProt & NIH Common Fund Data Resources
Find proteins for P63010 (Homo sapiens)
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PHAROS:  P63010
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
AP-2 complex subunit muC [auth M]446Rattus norvegicusMutation(s): 0 
Gene Names: Ap2m1
UniProt
Find proteins for P84092 (Rattus norvegicus)
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
Tyrosine type cargo signal derived from TGN38D [auth P]16Homo sapiensMutation(s): 0 
Gene Names: TGOLN2, TGN46, TGN51
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PHAROS:  O43493
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Entity ID: 5
MoleculeChainsSequence LengthOrganismDetailsImage
AP-2 complex subunit sigmaE [auth S]142Mus musculusMutation(s): 0 
Gene Names: Ap2s1, Ap17, Claps2
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Find proteins for P62743 (Mus musculus)
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IMPC:  MGI:2141861
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Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 9.10 Å
  • Aggregation State: 3D ARRAY 
  • Reconstruction Method: SUBTOMOGRAM AVERAGING 

Structure Validation

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Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
Wellcome TrustUnited Kingdom207455/Z/17/Z
Medical Research Council (MRC, United Kingdom)United KingdomMC_UP_1201/16

Revision History  (Full details and data files)

  • Version 1.0: 2020-07-29
    Type: Initial release
  • Version 1.1: 2020-08-12
    Changes: Database references
  • Version 1.2: 2020-08-19
    Changes: Database references