Biological Assembly 1  

 3D View: Structure | Electron Density

Standalone Viewers  
Protein Workshop | Ligand Explorer

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

Biological assembly 1 assigned by authors.

Biological Assembly 2  

 3D View: Structure | Electron Density

Standalone Viewers  
Protein Workshop | Ligand Explorer

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

Biological assembly 2 assigned by authors.

Macromolecule Content

• Total Structure Weight: 55557.69 
• Atom Count: 2944 
• Residue Count: 506 
• Unique protein chains: 1

1YYH

Crystal structure of the human Notch 1 ankyrin domain

• DOI: 10.2210/pdb1YYH/pdb

• Classification: CELL CYCLETRANSCRIPTION
• Organism(s): Homo sapiens
• Expression System: Escherichia coli


• 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.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.901 Å
• R-Value Free: 0.193 
• R-Value Work: 0.161 

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


• 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.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
Notch 1, ankyrin domain	A, B	253	Homo sapiens	Mutation(s): 0  Gene Names: NOTCH1 (TAN1)
Find proteins for P46531 (Homo sapiens) Go to Gene View: NOTCH1 Go to UniProtKB:  P46531

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.901 Å
• R-Value Free: 0.193 
• R-Value Work: 0.161 
• Space Group: P 6₅

Unit Cell:

Length (Å)	Angle (°)
a = 96.840	α = 90.00
b = 96.840	β = 90.00
c = 108.996	γ = 120.00

Software Package:

Software Name	Purpose
SCALEPACK	data scaling
DENZO	data reduction
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
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance
• Version 1.3: 2018-07-18
  Type: Data collection, Database references