5OPE

Robo1 Ig1-4 crystals form 2


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.54 Å
  • R-Value Free: 0.271 
  • R-Value Work: 0.212 
  • R-Value Observed: 0.215 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Robo1 Forms a Compact Dimer-of-Dimers Assembly.

Aleksandrova, N.Gutsche, I.Kandiah, E.Avilov, S.V.Petoukhov, M.V.Seiradake, E.McCarthy, A.A.

(2018) Structure 26: 320-328.e4

  • DOI: 10.1016/j.str.2017.12.003
  • Primary Citation of Related Structures:  
    5O5G, 5O5I, 5OPE

  • PubMed Abstract: 
  • Roundabout (Robo) receptors provide an essential repulsive cue in neuronal development following Slit ligand binding. This important signaling pathway can also be hijacked in numerous cancers, making Slit-Robo an attractive therapeutic target. Howeve ...

    Roundabout (Robo) receptors provide an essential repulsive cue in neuronal development following Slit ligand binding. This important signaling pathway can also be hijacked in numerous cancers, making Slit-Robo an attractive therapeutic target. However, little is known about how Slit binding mediates Robo activation. Here we present the crystal structure of Robo1 Ig1-4 and Robo1 Ig5, together with a negative stain electron microscopy reconstruction of the Robo1 ectodomain. These results show how the Robo1 ectodomain is arranged as compact dimers, mainly mediated by the central Ig domains, which can further interact in a "back-to-back" fashion to generate a tetrameric assembly. We also observed no change in Robo1 oligomerization upon interaction with the dimeric Slit2-N ligand using fluorescent imaging. Taken together with previous studies we propose that Slit2-N binding results in a conformational change of Robo1 to trigger cell signaling.


    Organizational Affiliation

    European Molecular Biology Laboratory, Grenoble Outstation, 71 avenue des Martyrs, 38042 Grenoble, France. Electronic address: andrewmc@embl.fr.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Roundabout homolog 1A385Homo sapiensMutation(s): 0 
Gene Names: ROBO1DUTT1
Find proteins for Q9Y6N7 (Homo sapiens)
Explore Q9Y6N7 
Go to UniProtKB:  Q9Y6N7
NIH Common Fund Data Resources
PHAROS  Q9Y6N7
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PO4
Query on PO4

Download CCD File 
A
PHOSPHATE ION
O4 P
NBIIXXVUZAFLBC-UHFFFAOYSA-K
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.54 Å
  • R-Value Free: 0.271 
  • R-Value Work: 0.212 
  • R-Value Observed: 0.215 
  • Space Group: C 2 2 21
  • Diffraction Data DOI: 10.15785/SBGRID/504 SBGrid
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 43.457α = 90
b = 99.134β = 90
c = 247.175γ = 90
Software Package:
Software NamePurpose
BUSTERrefinement
XDSdata reduction
Aimlessdata scaling
PHASERphasing
MxCuBEdata collection

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2018-01-17
    Type: Initial release
  • Version 1.1: 2018-02-14
    Changes: Database references
  • Version 1.2: 2018-05-02
    Changes: Data collection
  • Version 1.3: 2018-08-08
    Changes: Data collection, Database references