Biological Assembly 1  

 3D View: Structure | Electron Density

Global Symmetry: Cyclic - C2  (3D View)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors and generated by PISA,PQS (software)

Macromolecule Content

• Total Structure Weight: 45.99 kDa 
• Atom Count: 2834 
• Residue Count: 351 
• Unique protein chains: 1

2ELB

Crystal Structure of the BAR-PH domain of human APPL1

• DOI: 10.2210/pdb2ELB/pdb

• Classification: PROTEIN BINDING
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): Yes 


• Deposited: 2007-03-27 Released: 2007-05-29 
• Deposition Author(s): Li, J., Mao, X., Dong, L.Q., Liu, F., Tong, L.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.60 Å
• R-Value Free: 0.327 
• R-Value Work: 0.236 
• R-Value Observed: 0.236 

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

• PubMed: 17502098 
• 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. 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.

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Organizational Affiliation: 

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

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Adapter protein containing PH domain, PTB domain and leucine zipper motif 1	A	396	Homo sapiens	Mutation(s): 15  Gene Names: APPL1, APPL, DIP13A, KIAA1428
Find proteins for Q9UKG1 (Homo sapiens) Explore Q9UKG1  Go to UniProtKB:  Q9UKG1
NIH Common Fund Data Resources
PHAROS  Q9UKG1 GTEx  ENSG00000157500

Small Molecules

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
MSE	A	L-PEPTIDE LINKING	C5 H11 N O2 Se		MET

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.60 Å
• R-Value Free: 0.327 
• R-Value Work: 0.236 
• R-Value Observed: 0.236 
• Space Group: P 2₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 100.568	α = 90
b = 104.126	β = 90
c = 37.074	γ = 90

Software Package:

Software Name	Purpose
CNS	refinement
ADSC	data collection
DENZO	data reduction
SCALEPACK	data scaling
SnB	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2007-03-27 
• Released Date: 2007-05-29 
Deposition Author(s): Li, J., Mao, X., Dong, L.Q., Liu, F., Tong, L.

Revision History 

• 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: Derived calculations, Version format compliance