5DU0

Crystal structure of rsFolder in the non-fluorescent off-state

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.35 Å
  • R-Value Free: 0.257 
  • R-Value Work: 0.208 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history. 

Literature

Rational design of ultrastable and reversibly photoswitchable fluorescent proteins for super-resolution imaging of the bacterial periplasm.

El Khatib, M., Martins, A., Bourgeois, D., Colletier, J.P., Adam, V.

(2016) Sci Rep 6: 18459-18459

  • DOI: 10.1038/srep18459
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    • Phototransformable fluorescent proteins are central to several nanoscopy approaches. As yet however, there is no available variant allowing super-resolution imaging in cell compartments that maintain oxidative conditions. Here, we report the rational ...

    Phototransformable fluorescent proteins are central to several nanoscopy approaches. As yet however, there is no available variant allowing super-resolution imaging in cell compartments that maintain oxidative conditions. Here, we report the rational design of two reversibly switchable fluorescent proteins able to fold and photoswitch in the bacterial periplasm, rsFolder and rsFolder2. rsFolder was designed by hybridisation of Superfolder-GFP with rsEGFP2, and inherited the fast folding properties of the former together with the rapid switching of the latter, but at the cost of a reduced switching contrast. Structural characterisation of the switching mechanisms of rsFolder and rsEGFP2 revealed different scenarios for chromophore cis-trans isomerisation and allowed designing rsFolder2, a variant of rsFolder that exhibits improved switching contrast and is amenable to RESOLFT nanoscopy. The rsFolders can be efficiently expressed in the E. coli periplasm, opening the door to the nanoscale investigation of proteins localised in hitherto non-observable cellular compartments.

    Organizational Affiliation: 

    Univ. Grenoble Alpes, IBS, F-38044 Grenoble, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Green fluorescent protein
A, B, C, D
266Aequorea victoriaMutation(s): 5 
Gene Names: GFP
Find proteins for P42212 (Aequorea victoria)
Go to UniProtKB:  P42212
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
PIA
Query on PIA
A, B, C, D
L-PEPTIDE LINKINGC14 H15 N3 O4ALA,TYR,GLY
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.35 Å
  • R-Value Free: 0.257 
  • R-Value Work: 0.208 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 141.290α = 90.00
b = 134.800β = 105.58
c = 51.050γ = 90.00
Software Package:
Software NamePurpose
XSCALEdata scaling
REFMACrefinement
XDSdata reduction
PHASERphasing

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2016-01-27
    Type: Initial release
  • Version 1.1: 2017-09-20
    Type: Database references