Biological Assembly 1  

 3D View: Structure | 1D-3D View | Electron Density | Validation Report | Ligand Interaction

Global Symmetry: Cyclic - C2  (3D View)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors and generated by PQS (software)

Macromolecule Content

• Total Structure Weight: 73.75 kDa 
• Atom Count: 5594 
• Modelled Residue Count: 659 
• Deposited Residue Count: 674 
• Unique protein chains: 1

1GXR

WD40 Region of Human Groucho/TLE1

• PDB DOI: 10.2210/pdb1GXR/pdb

• Classification: TRANSCRIPTION
• Organism(s): Homo sapiens
• Expression System: Spodoptera frugiperda
• Mutation(s): No 


• Deposited: 2002-04-10 Released: 2002-06-13 
• Deposition Author(s): Pearl, L.H., Roe, S.M., Pickles, L.M.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.65 Å
• R-Value Free: 0.256 
• R-Value Work: 0.229 
• R-Value Observed: 0.229 

Literature

Crystal Structure of the C-Terminal Wd40 Repeat Domain of the Human Groucho/Tle1 Transcriptional Corepressor

Pickles, L.M., Roe, S.M., Hemingway, E.J., Stifani, S., Pearl, L.H.

(2002) Structure 10: 751

• PubMed: 12057191 
• DOI: 10.1016/s0969-2126(02)00768-2
• Primary Citation of Related Structures:  
  1GXR


• PubMed Abstract: 
  

Groucho (Gro)/TLE proteins are transcriptional corepressors that lack inherent DNA binding but interact with DNA-bound transcription factors and histones, and recruit histone deacetylases. Groucho-mediated repression is essential in embryonic development and involved in regulation of Wnt signaling in adult tissue. We have determined the 1.6 A crystal structure of a C-terminal fragment of human Groucho/TLE1, comprising part of the Ser/Pro-rich region and a seven-bladed beta propeller WD40 repeat domain, implicated in protein-protein interactions. The structure confirms the relationship to the yeast Tup1 corepressor, but reveals important structural differences specific to the metazoan system. Analysis of missense mutations in the C. elegans Groucho homolog UNC-37 identifies sites of interaction with repression effectors, and suggests an induced fit binding site for eh1 domains of Engrailed-type transcription factors.

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Organizational Affiliation: 

Section of Structural Biology, The Institute of Cancer Research, Chester Beatty Laboratories, 237 Fulham Road, SW3 6JB, London, United Kingdom.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
TRANSDUCIN-LIKE ENHANCER PROTEIN 1	A, B	337	Homo sapiens	Mutation(s): 0  Gene Names: TLE1
UniProt & NIH Common Fund Data Resources
Find proteins for Q04724 (Homo sapiens) Explore Q04724  Go to UniProtKB:  Q04724
PHAROS:  Q04724

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CA	C [auth A]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.65 Å
• R-Value Free: 0.256 
• R-Value Work: 0.229 
• R-Value Observed: 0.229 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 62.407	α = 90
b = 56.656	β = 102.29
c = 102.034	γ = 90

Software Package:

Software Name	Purpose
CNS	refinement
MOSFLM	data reduction
SCALA	data scaling
AMoRE	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2002-04-10 
• Released Date: 2002-06-13 
Deposition Author(s): Pearl, L.H., Roe, S.M., Pickles, L.M.

Revision History  

• Version 1.0: 2002-06-13
  Type: Initial release
  
• Version 1.1: 2013-02-06
  Changes: Database references, Derived calculations, Other, Refinement description, Structure summary, Version format compliance
• Version 1.2: 2019-05-08
  Changes: Data collection, Experimental preparation, Other