Crystal structure of the human Notch 1 ankyrin domain

Experimental Data Snapshot

  • Resolution: 1.90 Å
  • R-Value Free: 0.193 
  • R-Value Work: 0.161 
  • R-Value Observed: 0.163 

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This is version 1.4 of the entry. See complete history


High-resolution crystal structure of the human Notch 1 ankyrin domain

Ehebauer, M.T.Chirgadze, D.Y.Hayward, P.Martinez-Arias, A.Blundell, T.L.

(2005) Biochem J 392: 13-20

  • DOI: https://doi.org/10.1042/BJ20050515
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    The Notch receptor is part of a highly conserved signalling system of central importance to animal development. Its ANK (ankyrin) domain is required for Notch-mediated signal transduction. The crystal structure of the human Notch 1 ANK domain was solved by molecular replacement at 1.9 A (1 A=0.1 nm) resolution, and it shows that the features identified in the Drosophila homologue are conserved. The domain has six of the seven ANK repeats predicted from sequence. The putative first repeat, which has only part of the consensus and a long insertion, is disordered in both molecules in the asymmetric unit, possibly due to the absence of the RAM (RBPJkappa-associated molecule) region N-terminal to it. The exposed hydrophobic core is involved in intermolecular interactions in the crystal. Evolutionary trace analysis identified several residues that map to the hairpins of the structure and may be of functional importance. Based on the Notch 1 ANK structure and analysis of homologous Notch ANK sequences, we predict two possible binding sites on the domain: one on the concave surface of repeat 2 and the other below the hairpins of repeats 6-7.

  • Organizational Affiliation

    Department of Biochemistry, University of Cambridge, 80 Tennis Court Road, Cambridge CB2 1GA, UK.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Notch 1, ankyrin domain
A, B
253Homo sapiensMutation(s): 0 
Gene Names: NOTCH1TAN1
UniProt & NIH Common Fund Data Resources
Find proteins for P46531 (Homo sapiens)
Explore P46531 
Go to UniProtKB:  P46531
PHAROS:  P46531
GTEx:  ENSG00000148400 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP46531
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 1.90 Å
  • R-Value Free: 0.193 
  • R-Value Work: 0.161 
  • R-Value Observed: 0.163 
  • Space Group: P 65
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 96.84α = 90
b = 96.84β = 90
c = 108.996γ = 120
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2005-08-16
    Type: Initial release
  • Version 1.1: 2008-04-30
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2018-07-18
    Changes: Data collection, Database references
  • Version 1.4: 2023-08-23
    Changes: Data collection, Database references, Refinement description