3MX0

Crystal Structure of EphA2 ectodomain in complex with ephrin-A5


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.51 Å
  • R-Value Free: 0.295 
  • R-Value Work: 0.234 
  • R-Value Observed: 0.237 

wwPDB Validation 3D Report Full Report



Literature

Architecture of Eph receptor clusters.

Himanen, J.P.Yermekbayeva, L.Janes, P.W.Walker, J.R.Xu, K.Atapattu, L.Rajashankar, K.R.Mensinga, A.Lackmann, M.Nikolov, D.B.Dhe-Paganon, S.

(2010) Proc Natl Acad Sci U S A 107: 10860-10865

  • DOI: 10.1073/pnas.1004148107
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Eph receptor tyrosine kinases and their ephrin ligands regulate cell navigation during normal and oncogenic development. Signaling of Ephs is initiated in a multistep process leading to the assembly of higher-order signaling clusters that set off bid ...

    Eph receptor tyrosine kinases and their ephrin ligands regulate cell navigation during normal and oncogenic development. Signaling of Ephs is initiated in a multistep process leading to the assembly of higher-order signaling clusters that set off bidirectional signaling in interacting cells. However, the structural and mechanistic details of this assembly remained undefined. Here we present high-resolution structures of the complete EphA2 ectodomain and complexes with ephrin-A1 and A5 as the base unit of an Eph cluster. The structures reveal an elongated architecture with novel Eph/Eph interactions, both within and outside of the Eph ligand-binding domain, that suggest the molecular mechanism underlying Eph/ephrin clustering. Structure-function analysis, by using site-directed mutagenesis and cell-based signaling assays, confirms the importance of the identified oligomerization interfaces for Eph clustering.


    Organizational Affiliation

    Structural Biology Program, Memorial Sloan-Kettering Cancer Center, 1275 York Avenue, New York, NY 10065, USA.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Ephrin type-A receptor 2A, C409Homo sapiensMutation(s): 0 
Gene Names: EPHA2ECK
EC: 2.7.10.1
Find proteins for P29317 (Homo sapiens)
Explore P29317 
Go to UniProtKB:  P29317
NIH Common Fund Data Resources
PHAROS  P29317
Protein Feature View
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  • Reference Sequence

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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Ephrin-A5B, D138Homo sapiensMutation(s): 0 
Gene Names: EFNA5EPLG7LERK7
Find proteins for P52803 (Homo sapiens)
Explore P52803 
Go to UniProtKB:  P52803
NIH Common Fund Data Resources
PHAROS  P52803
Protein Feature View
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  • Reference Sequence
Oligosaccharides
Entity ID: 3
MoleculeChainsChain Length2D Diagram Glycosylation
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose
E, F
3 N-Glycosylation
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NAG
Query on NAG

Download CCD File 
A, C
2-acetamido-2-deoxy-beta-D-glucopyranose
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.51 Å
  • R-Value Free: 0.295 
  • R-Value Work: 0.234 
  • R-Value Observed: 0.237 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 57.859α = 90
b = 89.049β = 96.22
c = 198.15γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
PHENIXrefinement
PDB_EXTRACTdata extraction
HKL-2000data collection
PHENIXphasing

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-06-30
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2017-11-08
    Changes: Refinement description
  • Version 2.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Atomic model, Data collection, Derived calculations, Structure summary