6GP1

Structure of mEos4b in the red long-lived dark state


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.50 Å
  • R-Value Free: 0.304 
  • R-Value Work: 0.249 
  • R-Value Observed: 0.252 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Mechanistic investigation of mEos4b reveals a strategy to reduce track interruptions in sptPALM.

De Zitter, E.Thedie, D.Monkemoller, V.Hugelier, S.Beaudouin, J.Adam, V.Byrdin, M.Van Meervelt, L.Dedecker, P.Bourgeois, D.

(2019) Nat Methods 16: 707-710

  • DOI: 10.1038/s41592-019-0462-3
  • Primary Citation of Related Structures:  
    6GOY, 6GP0, 6GP1

  • PubMed Abstract: 
  • Green-to-red photoconvertible fluorescent proteins repeatedly enter dark states, causing interrupted tracks in single-particle-tracking localization microscopy (sptPALM). We identified a long-lived dark state in photoconverted mEos4b that results fro ...

    Green-to-red photoconvertible fluorescent proteins repeatedly enter dark states, causing interrupted tracks in single-particle-tracking localization microscopy (sptPALM). We identified a long-lived dark state in photoconverted mEos4b that results from isomerization of the chromophore and efficiently absorbs cyan light. Addition of weak 488-nm light swiftly reverts this dark state to the fluorescent state. This strategy largely eliminates slow blinking and enables the recording of longer tracks in sptPALM with minimum effort.


    Organizational Affiliation

    University Grenoble Alpes, CEA, CNRS, IBS, Grenoble, France. dominique.bourgeois@ibs.fr.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Green to red photoconvertible GFP-like protein EosFPA94Lobophyllia hemprichiiMutation(s): 0 
Find proteins for Q5S6Z9 (Lobophyllia hemprichii)
Explore Q5S6Z9 
Go to UniProtKB:  Q5S6Z9
Protein Feature View
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Green to red photoconvertible GFP-like protein EosFPB163Lobophyllia hemprichiiMutation(s): 0 
Find proteins for Q5S6Z9 (Lobophyllia hemprichii)
Explore Q5S6Z9 
Go to UniProtKB:  Q5S6Z9
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Modified Residues  2 Unique
IDChainsTypeFormula2D DiagramParent
NFA
Query on NFA
AL-PEPTIDE LINKINGC9 H12 N2 OPHE
IEY
Query on IEY
BL-PEPTIDE LINKINGC17 H16 N4 O4HIS, TYR, GLY
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.50 Å
  • R-Value Free: 0.304 
  • R-Value Work: 0.249 
  • R-Value Observed: 0.252 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 38.7α = 90
b = 58.29β = 90
c = 104.03γ = 90
Software Package:
Software NamePurpose
XDSdata reduction
XSCALEdata scaling
PHENIXrefinement
PDB_EXTRACTdata extraction
PHENIXphasing

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Research Foundation - FlandersBelgium--
Grenoble Instruct-ERIC CenterFranceUMS 3518 CNRS-CEA-UGA-EMBL
FranceANR-10-INBS-05-02
FranceANR-10-LABX-49-01

Revision History 

  • Version 1.0: 2019-05-22
    Type: Initial release
  • Version 1.1: 2019-07-17
    Changes: Data collection, Database references
  • Version 1.2: 2019-08-07
    Changes: Data collection, Database references