Biological Assembly 1  

 3D View: Structure | Electron Density

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Biological Assembly 2  

 3D View: Structure | Electron Density

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 2 assigned by authors.

Macromolecule Content

• Total Structure Weight: 55.56 kDa 
• Atom Count: 3481 
• Modelled Residue Count: 382 
• Deposited Residue Count: 506 
• Unique protein chains: 1

1YYH

Crystal structure of the human Notch 1 ankyrin domain

• DOI: 10.2210/pdb1YYH/pdb

• Classification: CELL CYCLE,TRANSCRIPTION
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2005-02-25 Released: 2005-08-16 
• Deposition Author(s): Ehebauer, M.T., Chirgadze, D.Y., Hayward, P., Martinez-Arias, A., Blundell, T.L.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 0.193 
• R-Value Work: 0.161 
• R-Value Observed: 0.163 

Literature

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

• PubMed: 16011479 
• DOI: 10.1042/BJ20050515
• Primary Citation of Related Structures:  
  1YYH


• 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.

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Organizational Affiliation: 

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

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Notch 1, ankyrin domain	A, B	253	Homo sapiens	Mutation(s): 0  Gene Names: NOTCH1, TAN1
Find proteins for P46531 (Homo sapiens) Explore P46531  Go to UniProtKB:  P46531
NIH Common Fund Data Resources
PHAROS:  P46531 GTEx:  ENSG00000148400

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• 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 = 96.84	α = 90
b = 96.84	β = 90
c = 108.996	γ = 120

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
AMoRE	phasing
REFMAC	refinement

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2005-02-25 
• Released Date: 2005-08-16 
Deposition Author(s): Ehebauer, M.T., Chirgadze, D.Y., Hayward, P., Martinez-Arias, A., Blundell, T.L.

Revision History  

• 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