4CUE

Human Notch1 EGF domains 11-13 mutant T466V


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.282 
  • R-Value Work: 0.260 
  • R-Value Observed: 0.261 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Fringe-Mediated Extension of O-Linked Fucose in the Ligand-Binding Region of Notch1 Increases Binding to Mammalian Notch Ligands.

Taylor, P.Takeuchi, H.Sheppard, D.Chillakuri, C.Lea, S.M.Haltiwanger, R.S.Handford, P.A.

(2014) Proc Natl Acad Sci U S A 111: 7290

  • DOI: 10.1073/pnas.1319683111
  • Primary Citation of Related Structures:  
    4D0E, 4D0F, 4CUD, 4CUE, 4CUF

  • PubMed Abstract: 
  • The Notch signaling pathway is essential for many aspects of development, cell fate determination, and tissue homeostasis. Notch signaling can be modulated by posttranslational modifications to the Notch receptor, which are known to alter both ligand ...

    The Notch signaling pathway is essential for many aspects of development, cell fate determination, and tissue homeostasis. Notch signaling can be modulated by posttranslational modifications to the Notch receptor, which are known to alter both ligand binding and receptor activation. We have modified the ligand-binding region (EGF domains 11-13) of human Notch1 (hN1) with O-fucose and O-glucose glycans and shown by flow cytometry and surface plasmon resonance that the Fringe-catalyzed addition of GlcNAc to the O-fucose at T466 in EGF12 substantially increases binding to Jagged1 and Delta-like 1 (DLL1) ligands. We have subsequently determined the crystal structures of EGF domains 11-13 of hN1 modified with either the O-fucose monosaccharide or the GlcNAc-fucose disaccharide at T466 of EGF12 and observed no change in backbone structure for each variant. Collectively, these data demonstrate a role for GlcNAc in modulating the ligand-binding site in hN1 EGF12, resulting in an increased affinity of this region for ligands Jagged1 and DLL1. We propose that this finding explains the Fringe-catalyzed enhancement of Notch-Delta signaling observed in flies and humans, but suggest that the inhibitory effect of Fringe on Jagged/Serrate mediated signaling involves other regions of Notch.


    Organizational Affiliation

    Department of Biochemistry, University of Oxford, Oxford OX1 3QU, United Kingdom; penny.handford@bioch.ox.ac.uk.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
NEUROGENIC LOCUS NOTCH HOMOLOG PROTEIN 1A135Homo sapiensMutation(s): 1 
Gene Names: NOTCH1TAN1
Find proteins for P46531 (Homo sapiens)
Explore P46531 
Go to UniProtKB:  P46531
NIH Common Fund Data Resources
PHAROS  P46531
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CA
Query on CA

Download CCD File 
A
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.282 
  • R-Value Work: 0.260 
  • R-Value Observed: 0.261 
  • Space Group: P 61 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 63.78α = 90
b = 63.78β = 90
c = 127.27γ = 120
Software Package:
Software NamePurpose
BUSTERrefinement
xia2data reduction
xia2data scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-05-21
    Type: Initial release
  • Version 1.1: 2014-06-04
    Changes: Database references
  • Version 1.2: 2018-02-07
    Changes: Structure summary