5HZR

Crystal structure of MtSnf2


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.33 Å
  • R-Value Free: 0.213 
  • R-Value Work: 0.194 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structure of chromatin remodeler Swi2/Snf2 in the resting state

Xia, X.Liu, X.Li, T.Fang, X.Chen, Z.C.

(2016) Nat.Struct.Mol.Biol. 23: 722-729

  • DOI: 10.1038/nsmb.3259

  • PubMed Abstract: 
  • SWI2/SNF2 family proteins regulate a myriad of nucleic acid transactions by sliding, removing and reconstructing nucleosomes in eukaryotic cells. They contain two RecA-like core domains, which couple ATP hydrolysis and DNA translocation to chromatin ...

    SWI2/SNF2 family proteins regulate a myriad of nucleic acid transactions by sliding, removing and reconstructing nucleosomes in eukaryotic cells. They contain two RecA-like core domains, which couple ATP hydrolysis and DNA translocation to chromatin remodeling. Here we report the crystal structure of Snf2 from the yeast Myceliophthora thermophila. The data show the two RecA-like core domains of Snf2 stacking together and twisting their ATP-binding motifs away from each other, thus explaining the inactivity of the protein in the ground state. We identified several DNA-binding elements, which are fully exposed to solvent, thus suggesting that the protein is poised for its incoming substrate. The catalytic core of Snf2 showed a high chromatin-remodeling activity, which was suppressed by the N-terminal HSA domain. Our findings reveal that the catalytic core of Snf2 is a competent remodeling machine, which rests in an inactive conformation and requires a large conformational change upon activation.


    Organizational Affiliation

    MOE Key Laboratory of Protein Science, Tsinghua University, Beijing, China.,School of Life Science, Tsinghua University, Beijing, China.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
SNF2-family ATP dependent chromatin remodeling factor like protein
A
732Myceliophthora thermophila (strain ATCC 42464 / BCRC 31852 / DSM 1799)Mutation(s): 0 
Find proteins for G2QDW1 (Myceliophthora thermophila (strain ATCC 42464 / BCRC 31852 / DSM 1799))
Go to UniProtKB:  G2QDW1
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NA
Query on NA

Download SDF File 
Download CCD File 
A
SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
 Ligand Interaction
SO4
Query on SO4

Download SDF File 
Download CCD File 
A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
KH2
Query on KH2

Download SDF File 
Download CCD File 
A
3-(1-methylpiperidinium-1-yl)propane-1-sulfonate
C9 H19 N O3 S
DQNQWAVIDNVATL-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.33 Å
  • R-Value Free: 0.213 
  • R-Value Work: 0.194 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 122.613α = 90.00
b = 144.266β = 90.00
c = 121.290γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data scaling
PHENIXrefinement
HKL-2000data reduction
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data

  • Deposited Date: 2016-02-02 
  • Released Date: 2016-07-20 
  • Deposition Author(s): Chen, Z.C., Xia, X.

Funding OrganizationLocationGrant Number
Chinese Key Research Plan-Protein SciencesChina2014CB910100

Revision History 

  • Version 1.0: 2016-07-20
    Type: Initial release
  • Version 1.1: 2016-08-17
    Type: Database references