2ELA

Crystal Structure of the PTB domain of human APPL1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.259 
  • R-Value Work: 0.222 
  • R-Value Observed: 0.222 

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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:  
    2ELB, 2ELA

  • 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 and PTB domains of human APPL1 ...

    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:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Adapter protein containing PH domain, PTB domain and leucine zipper motif 1A, B175Homo sapiensMutation(s): 0 
Gene Names: APPL1APPLDIP13AKIAA1428
Find proteins for Q9UKG1 (Homo sapiens)
Explore Q9UKG1 
Go to UniProtKB:  Q9UKG1
NIH Common Fund Data Resources
PHAROS:  Q9UKG1
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.259 
  • R-Value Work: 0.222 
  • R-Value Observed: 0.222 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 45.533α = 90
b = 61.593β = 101.22
c = 60.745γ = 90
Software Package:
Software NamePurpose
CNSrefinement
ADSCdata collection
DENZOdata reduction
SCALEPACKdata scaling
SnBphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

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