3TUO

Crystal structure of N-terminal domain of DNA-binding protein satb1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.697 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.158 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

The structural basis for the oligomerization of the N-terminal domain of SATB1

Wang, Z.Yang, X.Chu, X.Zhang, J.Zhou, H.Shen, Y.Long, J.

(2012) Nucleic Acids Res. 40: 4193-4202

  • DOI: 10.1093/nar/gkr1284

  • PubMed Abstract: 
  • Special AT-rich sequence-binding protein 1 (SATB1) is a global chromatin organizer and gene expression regulator essential for T-cell development and breast cancer tumor growth and metastasis. The oligomerization of the N-terminal domain of SATB1 is ...

    Special AT-rich sequence-binding protein 1 (SATB1) is a global chromatin organizer and gene expression regulator essential for T-cell development and breast cancer tumor growth and metastasis. The oligomerization of the N-terminal domain of SATB1 is critical for its biological function. We determined the crystal structure of the N-terminal domain of SATB1. Surprisingly, this domain resembles a ubiquitin domain instead of the previously proposed PDZ domain. Our results also reveal that SATB1 can form a tetramer through its N-terminal domain. The tetramerization of SATB1 plays an essential role in its binding to highly specialized DNA sequences. Furthermore, isothermal titration calorimetry results indicate that the SATB1 tetramer can bind simultaneously to two DNA targets. Based on these results, we propose a molecular model whereby SATB1 regulates the expression of multiple genes both locally and at a distance.


    Organizational Affiliation

    State Key Laboratory of Medicinal Chemical Biology and College of Life Sciences, Nankai University, 94 Weijin Road, Tianjin 300071, China.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
DNA-binding protein SATB1
A, B, C, D
105Homo sapiensMutation(s): 0 
Gene Names: SATB1
Find proteins for Q01826 (Homo sapiens)
Go to Gene View: SATB1
Go to UniProtKB:  Q01826
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.697 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.158 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 35.895α = 90.00
b = 71.027β = 90.00
c = 153.763γ = 90.00
Software Package:
Software NamePurpose
PHENIXmodel building
HKL-2000data scaling
MAR345dtbdata collection
PHENIXrefinement
PHENIXphasing
HKL-2000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-02-01
    Type: Initial release
  • Version 1.1: 2013-06-26
    Type: Database references