5O5I

Robo1 Ig5


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.01 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.193 

wwPDB Validation 3D Report Full Report


This is version 1.2 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:  

  • 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.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Roundabout homolog 1
A
92Homo sapiensMutation(s): 0 
Gene Names: ROBO1 (DUTT1)
Find proteins for Q9Y6N7 (Homo sapiens)
Go to Gene View: ROBO1
Go to UniProtKB:  Q9Y6N7
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.01 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.193 
  • Space Group: P 61
Unit Cell:
Length (Å)Angle (°)
a = 80.820α = 90.00
b = 80.820β = 90.00
c = 26.830γ = 120.00
Software Package:
Software NamePurpose
PHASERphasing
XDSdata reduction
BUSTERrefinement
XSCALEdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

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