1W8A

Third LRR domain of Drosophila Slit


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.269 
  • R-Value Work: 0.199 
  • R-Value Observed: 0.199 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Binding Site for Robo Receptors Revealed by Dissection of the Leucine-Rich Repeat Region of Slit.

Howitt, J.A.Clout, N.J.Hohenester, E.

(2004) EMBO J 23: 4406

  • DOI: 10.1038/sj.emboj.7600446
  • Primary Citation of Related Structures:  
    1W8A

  • PubMed Abstract: 
  • Recognition of the large secreted protein Slit by receptors of the Robo family provides fundamental signals in axon guidance and other developmental processes. In Drosophila, Slit-Robo signalling regulates midline crossing and the lateral position of longitudinal axon tracts ...

    Recognition of the large secreted protein Slit by receptors of the Robo family provides fundamental signals in axon guidance and other developmental processes. In Drosophila, Slit-Robo signalling regulates midline crossing and the lateral position of longitudinal axon tracts. We report the functional dissection of Drosophila Slit, using structure analysis, site-directed mutagenesis and in vitro assays. The N-terminal region of Slit consists of a tandem array of four independently folded leucine-rich repeat (LRR) domains, connected by disulphide-tethered linkers. All three Drosophila Robos were found to compete for a single highly conserved site on the concave face of the second LRR domain of Slit. We also found that this domain is sufficient for biological activity in a chemotaxis assay. Other Slit activities may require Slit dimerisation mediated by the fourth LRR domain. Our results show that a small portion of Slit is able to induce Robo signalling and indicate that the distinct functions of Drosophila Robos are encoded in their divergent cytosolic domains.


    Organizational Affiliation

    Department of Biological Sciences, Imperial College London, London, UK. e.hohenester@imperial.ac.uk



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
SLIT PROTEIN A192Drosophila melanogasterMutation(s): 0 
Gene Names: sliCG43758
Find proteins for P24014 (Drosophila melanogaster)
Explore P24014 
Go to UniProtKB:  P24014
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.269 
  • R-Value Work: 0.199 
  • R-Value Observed: 0.199 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 121.213α = 90
b = 31.852β = 100.72
c = 49.526γ = 90
Software Package:
Software NamePurpose
CNSrefinement
MOSFLMdata reduction
SCALAdata scaling
AMoREphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2004-10-25
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2017-11-08
    Changes: Advisory, Source and taxonomy