2ELA

Crystal Structure of the PTB domain of human APPL1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.259 
  • R-Value Work: 0.222 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal Structures of the BAR-PH and PTB Domains of Human APPL1

Li, J.Mao, X.Dong, L.Q.Liu, F.Tong, L.

(2007) Structure 15: 525-533

  • DOI: 10.1016/j.str.2007.03.011
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • APPL1 interacts with adiponectin receptors and other important signaling molecules. It contains a BAR and a PH domain near its N terminus, and the two domains may function as a unit (BAR-PH domain). We report here the crystal structures of the BAR-PH ...

    APPL1 interacts with adiponectin receptors and other important signaling molecules. It contains a BAR and a PH domain near its N terminus, and the two domains may function as a unit (BAR-PH domain). We report here the crystal structures of the BAR-PH and PTB domains of human APPL1. The structures reveal novel features for BAR domain dimerization and for the interactions between the BAR and PH domains. The BAR domain dimer of APPL1 contains two four-helical bundles, whereas other BAR domain dimers have only three helices in each bundle. The PH domain is located at the opposite ends of the BAR domain dimer. Yeast two-hybrid assays confirm the interactions between the BAR and PH domains. Lipid binding assays show that the BAR, PH, and PTB domains can bind phospholipids. The ability of APPL1 to interact with multiple signaling molecules and phospholipids supports an important role for this adaptor in cell signaling.


    Organizational Affiliation

    Department of Biological Sciences, Columbia University, New York, NY 10027, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Adapter protein containing PH domain, PTB domain and leucine zipper motif 1
A, B
175Homo sapiensMutation(s): 0 
Gene Names: APPL1 (APPL, DIP13A, KIAA1428)
Find proteins for Q9UKG1 (Homo sapiens)
Go to Gene View: APPL1
Go to UniProtKB:  Q9UKG1
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.259 
  • R-Value Work: 0.222 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 45.533α = 90.00
b = 61.593β = 101.22
c = 60.745γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
SnBphasing
CNSrefinement
DENZOdata reduction
ADSCdata collection

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-05-29
    Type: Initial release
  • Version 1.1: 2008-04-30
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance