2F8Y

Crystal structure of human Notch1 ankyrin repeats to 1.55A resolution.

• PDB DOI:  https://doi.org/10.2210/pdb2F8Y/pdb

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


• Deposited: 2005-12-04 Released: 2006-04-04 
• Deposition Author(s): Nam, Y., Sliz, P., Blacklow, S.C.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.55 Å
• R-Value Free: 0.187 
• R-Value Work: 0.150 
• R-Value Observed: 0.152 

Literature

Structural basis for cooperativity in recruitment of MAML coactivators to Notch transcription complexes.

Nam, Y., Sliz, P., Song, L., Aster, J.C., Blacklow, S.C.

(2006) Cell 124: 973-983

• PubMed: 16530044 
• DOI: https://doi.org/10.1016/j.cell.2005.12.037
• Primary Citation of Related Structures:  
  2F8X, 2F8Y


• PubMed Abstract: 
  

Notch receptors transduce essential developmental signals between neighboring cells by forming a complex that leads to transcription of target genes upon activation. We report here the crystal structure of a Notch transcriptional activation complex containing the ankyrin domain of human Notch1 (ANK), the transcription factor CSL on cognate DNA, and a polypeptide from the coactivator Mastermind-like-1 (MAML-1). Together, CSL and ANK create a groove to bind the MAML-1 polypeptide as a kinked, 70 A helix. The composite binding surface likely restricts the recruitment of MAML proteins to promoters on which Notch:CSL complexes have been preassembled, ensuring tight transcriptional control of Notch target genes.

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Organizational Affiliation: 

Biological and Biomedical Sciences Graduate Program in the Division of Medical Sciences, Harvard Medical School, Boston, MA 02115, USA.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly 2  

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

Biological assembly 2 assigned by authors.

Macromolecule Content

• Total Structure Weight: 49.2 kDa 
• Atom Count: 3,695 
• Modelled Residue Count: 424 
• Deposited Residue Count: 446 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Notch homolog 1, translocation-associated (Drosophila)	A, B	223	Homo sapiens	Mutation(s): 0  Gene Names: NOTCH1, TAN1
UniProt & NIH Common Fund Data Resources
Find proteins for P46531 (Homo sapiens) Explore P46531  Go to UniProtKB:  P46531
PHAROS:  P46531

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SO4	C [auth B], D [auth B]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.55 Å
• R-Value Free: 0.187 
• R-Value Work: 0.150 
• R-Value Observed: 0.152 
• Space Group: P 6₅

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 97.933	α = 90
b = 97.933	β = 90
c = 109.068	γ = 120

Software Package:

Software Name	Purpose
CNS	refinement
HKL-2000	data reduction
SCALEPACK	data scaling
MOLREP	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2006-04-04 
Deposition Author(s): Nam, Y., Sliz, P., Blacklow, S.C.

Revision History  

• Version 1.0: 2006-04-04
  Type: Initial release
  
• Version 1.1: 2008-05-01
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2023-08-30
  Changes: Data collection, Database references, Derived calculations, Refinement description