1B89

CLATHRIN HEAVY CHAIN PROXIMAL LEG SEGMENT (BOVINE)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.279 
  • R-Value Work: 0.254 
  • R-Value Observed: 0.254 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Clathrin self-assembly is mediated by a tandemly repeated superhelix.

Ybe, J.A.Brodsky, F.M.Hofmann, K.Lin, K.Liu, S.H.Chen, L.Earnest, T.N.Fletterick, R.J.Hwang, P.K.

(1999) Nature 399: 371-375

  • DOI: 10.1038/20708
  • Primary Citation of Related Structures:  
    1B89

  • PubMed Abstract: 
  • Clathrin is a triskelion-shaped cytoplasmic protein that polymerizes into a polyhedral lattice on intracellular membranes to form protein-coated membrane vesicles. Lattice formation induces the sorting of membrane proteins during endocytosis and organelle biogenesis by interacting with membrane-associated adaptor molecules ...

    Clathrin is a triskelion-shaped cytoplasmic protein that polymerizes into a polyhedral lattice on intracellular membranes to form protein-coated membrane vesicles. Lattice formation induces the sorting of membrane proteins during endocytosis and organelle biogenesis by interacting with membrane-associated adaptor molecules. The clathrin triskelion is a trimer of heavy-chain subunits (1,675 residues), each binding a single light-chain subunit, in the hub domain (residues 1,074-1,675). Light chains negatively modulate polymerization so that intracellular clathrin assembly is adaptor-dependent. Here we report the atomic structure, to 2.6 A resolution, of hub residues 1,210-1,516 involved in mediating spontaneous clathrin heavy-chain polymerization and light-chain association. The hub fragment folds into an elongated coil of alpha-helices, and alignment analyses reveal a 145-residue motif that is repeated seven times along the filamentous leg and appears in other proteins involved in vacuolar protein sorting. The resulting model provides a three-dimensional framework for understanding clathrin heavy-chain self-assembly, light-chain binding and trimerization.


    Organizational Affiliation

    The G. W. Hooper Foundation, Department of Microbiology and Immunology, University of California San Francisco, 94143, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
PROTEIN (CLATHRIN HEAVY CHAIN)A449Bos taurusMutation(s): 0 
Gene Names: CLTC
Find proteins for P49951 (Bos taurus)
Explore P49951 
Go to UniProtKB:  P49951
Protein Feature View
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  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
AL-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.279 
  • R-Value Work: 0.254 
  • R-Value Observed: 0.254 
  • Space Group: I 41 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 145.2α = 90
b = 145.2β = 90
c = 166.3γ = 90
Software Package:
Software NamePurpose
SOLVEphasing
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1999-06-04
    Type: Initial release
  • Version 1.1: 2007-10-16
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance