2GY7

Angiopoietin-2/Tie2 Complex Crystal Structure


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.7 Å
  • R-Value Free: 0.317 
  • R-Value Work: 0.240 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structures of the Tie2 receptor ectodomain and the angiopoietin-2-Tie2 complex.

Barton, W.A.Tzvetkova-Robev, D.Miranda, E.P.Kolev, M.V.Rajashankar, K.R.Himanen, J.P.Nikolov, D.B.

(2006) Nat.Struct.Mol.Biol. 13: 524-532

  • DOI: 10.1038/nsmb1101
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The Tie receptor tyrosine kinases and their angiopoietin (Ang) ligands play central roles in developmental and tumor-induced angiogenesis. Here we present the crystal structures of the Tie2 ligand-binding region alone and in complex with Ang2. In con ...

    The Tie receptor tyrosine kinases and their angiopoietin (Ang) ligands play central roles in developmental and tumor-induced angiogenesis. Here we present the crystal structures of the Tie2 ligand-binding region alone and in complex with Ang2. In contrast to prediction, Tie2 contains not two but three immunoglobulin (Ig) domains, which fold together with the three epidermal growth factor domains into a compact, arrowhead-shaped structure. Ang2 binds at the tip of the arrowhead utilizing a lock-and-key mode of ligand recognition-unique for a receptor kinase-where two complementary surfaces interact with each other with no domain rearrangements and little conformational change in either molecule. Ang2-Tie2 recognition is similar to antibody-protein antigen recognition, including the location of the ligand-binding site within the Ig fold. Analysis of the structures and structure-based mutagenesis provide insight into the mechanism of receptor activation and support the hypothesis that all angiopoietins interact with Tie2 in a structurally similar manner.


    Organizational Affiliation

    Structural Biology Program, Memorial Sloan-Kettering Cancer Center, 1275 York Avenue, New York, New York 10021, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Angiopoietin-2
A
216Homo sapiensMutation(s): 0 
Gene Names: ANGPT2
Find proteins for O15123 (Homo sapiens)
Go to Gene View: ANGPT2
Go to UniProtKB:  O15123
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Angiopoietin-1 receptor
B
423Homo sapiensMutation(s): 0 
Gene Names: TEK (TIE2, VMCM, VMCM1)
EC: 2.7.10.1
Find proteins for Q02763 (Homo sapiens)
Go to Gene View: TEK
Go to UniProtKB:  Q02763
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

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Download CCD File 
B
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
CA
Query on CA

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Download CCD File 
A
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
NDG
Query on NDG

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Download CCD File 
B
2-(ACETYLAMINO)-2-DEOXY-A-D-GLUCOPYRANOSE
C8 H15 N O6
OVRNDRQMDRJTHS-PVFLNQBWSA-N
 Ligand Interaction
NAG
Query on NAG

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Download CCD File 
B
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.7 Å
  • R-Value Free: 0.317 
  • R-Value Work: 0.240 
  • Space Group: P 41 21 2
Unit Cell:
Length (Å)Angle (°)
a = 165.636α = 90.00
b = 165.636β = 90.00
c = 115.310γ = 90.00
Software Package:
Software NamePurpose
AMoREphasing
CNSrefinement
ADSCdata collection
PDB_EXTRACTdata extraction
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2006-06-06
    Type: Initial release
  • Version 1.1: 2008-05-01
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Non-polymer description, Version format compliance