6GP0

Structure of mEos4b in the red fluorescent state


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.50 Å
  • R-Value Free: 0.190 
  • R-Value Work: 0.154 
  • R-Value Observed: 0.155 

wwPDB Validation   3D Report Full Report


This is version 3.1 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: https://doi.org/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 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.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Green to red photoconvertible GFP-like protein EosFP257Lobophyllia hemprichiiMutation(s): 1 
UniProt
Find proteins for Q5S6Z9 (Lobophyllia hemprichii)
Explore Q5S6Z9 
Go to UniProtKB:  Q5S6Z9
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ5S6Z9
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Modified Residues  2 Unique
IDChains TypeFormula2D DiagramParent
5SQ
Query on 5SQ
A
L-PEPTIDE LINKINGC17 H17 N5 O4HIS, TYR, GLY
NFA
Query on NFA
A
L-PEPTIDE LINKINGC9 H12 N2 OPHE
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.50 Å
  • R-Value Free: 0.190 
  • R-Value Work: 0.154 
  • R-Value Observed: 0.155 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 38.61α = 90
b = 57.9β = 90
c = 102.64γ = 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
France--

Revision History  (Full details and data files)

  • 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
  • Version 2.0: 2021-10-13
    Changes: Advisory, Atomic model, Author supporting evidence, Data collection, Database references, Derived calculations, Non-polymer description, Polymer sequence, Source and taxonomy, Structure summary
  • Version 3.0: 2023-11-15
    Changes: Atomic model, Data collection, Derived calculations
  • Version 3.1: 2024-01-17
    Changes: Refinement description