1XI5

Clathrin D6 coat with auxilin J-domain


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 12 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of an auxilin-bound clathrin coat and its implications for the mechanism of uncoating

Fotin, A.Cheng, Y.Grigorieff, N.Walz, T.Harrison, S.C.Kirchhausen, T.

(2004) Nature 432: 649-653

  • DOI: 10.1038/nature03078
  • Also Cited By: 3IYV, 1XI4

  • PubMed Abstract: 
  • Clathrin-coated pits invaginate from specific membrane compartments and pinch off as coated vesicles. These vesicles then uncoat rapidly once released. The Hsc70 molecular chaperone effects the uncoating reaction, and is guided to appropriate locatio ...

    Clathrin-coated pits invaginate from specific membrane compartments and pinch off as coated vesicles. These vesicles then uncoat rapidly once released. The Hsc70 molecular chaperone effects the uncoating reaction, and is guided to appropriate locations on clathrin lattices by the J-domain-containing co-chaperone molecule auxilin. This raises the question of how a local event such as ATP hydrolysis by Hsc70 can catalyse a global disassembly. Here, we have used electron cryomicroscopy to determine 12-A-resolution structures of in-vitro-assembled clathrin coats in association with a carboxy-terminal fragment of auxilin that contains both the clathrin-binding region and the J domain. We have located the auxilin fragment by computing differences between these structures and those lacking auxilin (described in an accompanying paper). Auxilin binds within the clathrin lattice near contacts between an inward-projecting C-terminal helical tripod and the crossing of two 'ankle' segments; it also contacts the terminal domain of yet another clathrin 'leg'. It therefore recruits Hsc70 to the neighbourhood of a set of critical interactions. Auxilin binding produces a local change in heavy-chain contacts, creating a detectable global distortion of the clathrin coat. We propose a mechanism by which local destabilization of the lattice promotes general uncoating.


    Related Citations: 
    • Molecular model for a complete clathrin lattice from electron cryomicroscopy
      Fotin, A.,Cheng, Y.,Sliz, P.,Grigorieff, N.,Harrison, S.C.,Kirchhausen, T.,Walz, T.
      (2004) Nature 432: 573


    Organizational Affiliation

    Biophysics Graduate Program, Department of Cell Biology, Harvard Medical School, 240 Longwood Avenue, Boston, Massachusetts 02115, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Clathrin heavy chain
A, B, C, D, E, F, G, H, I
1630Bos taurusMutation(s): 0 
Gene Names: CLTC
Find proteins for P49951 (Bos taurus)
Go to Gene View: CLTC
Go to UniProtKB:  P49951
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Auxilin J-domain
J, K, L, M, N, O, P, Q, R
114Bos taurusMutation(s): 0 
Gene Names: DNAJC6
EC: 3.1.3.48
Find proteins for Q27974 (Bos taurus)
Go to Gene View: DNAJC6
Go to UniProtKB:  Q27974
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 12 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2004-11-02
    Type: Initial release
  • Version 1.1: 2008-04-30
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance