3ST2

Dreiklang - equilibrium state


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.206 
  • R-Value Work: 0.158 
  • R-Value Observed: 0.161 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

A reversibly photoswitchable GFP-like protein with fluorescence excitation decoupled from switching.

Brakemann, T.Stiel, A.C.Weber, G.Andresen, M.Testa, I.Grotjohann, T.Leutenegger, M.Plessmann, U.Urlaub, H.Eggeling, C.Wahl, M.C.Hell, S.W.Jakobs, S.

(2011) Nat Biotechnol 29: 942-947

  • DOI: 10.1038/nbt.1952
  • Primary Citation of Related Structures:  
    3ST2, 3ST3, 3ST4

  • PubMed Abstract: 
  • Photoswitchable fluorescent proteins have enabled new approaches for imaging cells, but their utility has been limited either because they cannot be switched repeatedly or because the wavelengths for switching and fluorescence imaging are strictly co ...

    Photoswitchable fluorescent proteins have enabled new approaches for imaging cells, but their utility has been limited either because they cannot be switched repeatedly or because the wavelengths for switching and fluorescence imaging are strictly coupled. We report a bright, monomeric, reversibly photoswitchable variant of GFP, Dreiklang, whose fluorescence excitation spectrum is decoupled from that for optical switching. Reversible on-and-off switching in living cells is accomplished at illumination wavelengths of ∼365 nm and ∼405 nm, respectively, whereas fluorescence is elicited at ∼515 nm. Mass spectrometry and high-resolution crystallographic analysis of the same protein crystal in the photoswitched on- and off-states demonstrate that switching is based on a reversible hydration/dehydration reaction that modifies the chromophore. The switching properties of Dreiklang enable far-field fluorescence nanoscopy in living mammalian cells using both a coordinate-targeted and a stochastic single molecule switching approach.


    Organizational Affiliation

    Max Planck Institute for Biophysical Chemistry, Department of NanoBiophotonics, Göttingen, Germany.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
DreiklangABC250Aequorea victoriaMutation(s): 0 
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PO4
Query on PO4

Download CCD File 
A, B, C
PHOSPHATE ION
O4 P
NBIIXXVUZAFLBC-UHFFFAOYSA-K
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
CR2
Query on CR2
A,B,CL-PEPTIDE LINKINGC13 H13 N3 O4GLY, TYR, GLY
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.206 
  • R-Value Work: 0.158 
  • R-Value Observed: 0.161 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 68.057α = 90
b = 136.213β = 90
c = 81.247γ = 90
Software Package:
Software NamePurpose
MAR345data collection
PHASERphasing
PHENIXrefinement
XDSdata reduction
XDSdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-09-14
    Type: Initial release
  • Version 1.1: 2011-09-28
    Changes: Database references
  • Version 1.2: 2011-10-26
    Changes: Database references
  • Version 1.3: 2017-11-08
    Changes: Refinement description