6IWV

Crystal structure of a single strand DNA binding protein


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.52 Å
  • R-Value Free: 0.181 
  • R-Value Work: 0.146 
  • R-Value Observed: 0.147 

wwPDB Validation   3D Report Full Report


This is version 1.0 of the entry. See complete history


Literature

Crystal structure of the LUFS domain of human single-stranded DNA binding Protein 2 (SSBP2).

Wang, H.Wang, Z.Tang, Q.Yan, X.X.Xu, W.

(2019) Protein Sci 28: 788-793

  • DOI: 10.1002/pro.3581
  • Primary Citation of Related Structures:  
    6IWV

  • PubMed Abstract: 
  • The human single-stranded DNA binding Protein 2 (SSBP2) is a tumor suppressor implicated in multiple cancer forms. The SSBP2 and related SSBP3/SSBP4 proteins are predicted to be intrinsically disordered excepted for their highly conserved N-terminal LUFS (LUG/LUH, Flo8, and SSBP/SSDP) domain ...

    The human single-stranded DNA binding Protein 2 (SSBP2) is a tumor suppressor implicated in multiple cancer forms. The SSBP2 and related SSBP3/SSBP4 proteins are predicted to be intrinsically disordered excepted for their highly conserved N-terminal LUFS (LUG/LUH, Flo8, and SSBP/SSDP) domain. LUFS domains are found in a number of proteins including some transcriptional co-repressors. Although LUFS domains contain an N-terminal Lis homology (LisH) motif that typically forms a stable dimer, no 3D structure of any LUFS domain is available. Here, we report a crystal structure of the LUFS domain of human SSBP2 at 1.52 Å resolution. We show that the SSBP2 LUFS domain forms a homo-tetramer and reveal how an alpha-helix C-terminal to the LisH motif mediates SSBP2 tetramerization (dimerization of dimers). Conservation of the tetramerization interface among LUFS domains suggests that other LUFS domains may also form tetramers in similar manners.


    Organizational Affiliation

    Department of Biological Structure, University of Washington School of Medicine, Seattle, Washington, DC 98195.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Single-stranded DNA-binding protein 2A, B68Homo sapiensMutation(s): 0 
Gene Names: SSBP2SSDP2
UniProt & NIH Common Fund Data Resources
Find proteins for P81877 (Homo sapiens)
Explore P81877 
Go to UniProtKB:  P81877
PHAROS:  P81877
Protein Feature View
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.52 Å
  • R-Value Free: 0.181 
  • R-Value Work: 0.146 
  • R-Value Observed: 0.147 
  • Space Group: P 63 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 116.906α = 90
b = 116.906β = 90
c = 42.355γ = 120
Software Package:
Software NamePurpose
REFMACrefinement
HKL-3000data collection
HKL-3000data scaling
AutoSolphasing
HKL-3000data reduction

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

  • Deposited Date: 2018-12-07 
  • Released Date: 2019-08-14 
  • Deposition Author(s): Wang, H.Y., Yan, X.X.

Revision History  (Full details and data files)

  • Version 1.0: 2019-08-14
    Type: Initial release