1HFA

CALM-N N-terminal domain of clathrin assembly lymphoid myeloid leukaemia protein, PI(4,5)P2 complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.230 
  • R-Value Work: 0.197 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Simultaneous Binding of Ptdins(4,5)P2 and Clathrin by Ap180 in the Nucleation of Clathrin Lattices on Membranes

Ford, M.G.J.Pearse, B.M.F.Higgins, M.K.Vallis, Y.Owen, D.J.Gibson, A.Hopkins, C.R.Evans, P.R.Mcmahon, H.T.

(2001) Science 291: 1051

  • DOI: 10.1126/science.291.5506.1051
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Adaptor protein 180 (AP180) and its homolog, clathrin assembly lymphoid myeloid leukemia protein (CALM), are closely related proteins that play important roles in clathrin-mediated endocytosis. Here, we present the structure of the NH2-terminal domai ...

    Adaptor protein 180 (AP180) and its homolog, clathrin assembly lymphoid myeloid leukemia protein (CALM), are closely related proteins that play important roles in clathrin-mediated endocytosis. Here, we present the structure of the NH2-terminal domain of CALM bound to phosphatidylinositol-4,5- bisphosphate [PtdIns(4,5)P2] via a lysine-rich motif. This motif is found in other proteins predicted to have domains of similar structure (for example, Huntingtin interacting protein 1). The structure is in part similar to the epsin NH2-terminal (ENTH) domain, but epsin lacks the PtdIns(4,5)P2-binding site. Because AP180 could bind to PtdIns(4,5)P2 and clathrin simultaneously, it may serve to tether clathrin to the membrane. This was shown by using purified components and a budding assay on preformed lipid monolayers. In the presence of AP180, clathrin lattices formed on the monolayer. When AP2 was also present, coated pits were formed.


    Organizational Affiliation

    Medical Research Council (MRC) Laboratory of Molecular Biology, Hills Road, Cambridge, CB2 2QH, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
CLATHRIN ASSEMBLY PROTEIN SHORT FORM
A
289Rattus norvegicusMutation(s): 0 
Gene Names: Picalm (Calm)
Find proteins for O55012 (Rattus norvegicus)
Go to UniProtKB:  O55012
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PIO
Query on PIO

Download SDF File 
Download CCD File 
A
[(2R)-2-octanoyloxy-3-[oxidanyl-[(1R,2R,3S,4R,5R,6S)-2,3,6-tris(oxidanyl)-4,5-diphosphonooxy-cyclohexyl]oxy-phosphoryl]oxy-propyl] octanoate
dioctanoyl l-alpha-phosphatidyl-d-myo-inositol 4,5-diphosphate
C25 H49 O19 P3
XLNCEHRXXWQMPK-MJUMVPIBSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.230 
  • R-Value Work: 0.197 
  • Space Group: P 41 21 2
Unit Cell:
Length (Å)Angle (°)
a = 77.725α = 90.00
b = 77.725β = 90.00
c = 122.265γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2001-02-12
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance