4HQ8

Crystal structure of a green-to-red photoconvertible DRONPA, pcDRONPA in the green-on-state


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Free: 0.235 
  • R-Value Work: 0.184 
  • R-Value Observed: 0.187 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Green-to-red photoconvertible Dronpa mutant for multimodal super-resolution fluorescence microscopy

Moeyaert, B.Nguyen Bich, N.De Zitter, E.Rocha, S.Clays, K.Mizuno, H.van Meervelt, L.Hofkens, J.Dedecker, P.

(2014) ACS Nano 8: 1664-1673

  • DOI: 10.1021/nn4060144
  • Primary Citation of Related Structures:  
    4HQ8, 4HQ9, 4HQC, 4IZN

  • PubMed Abstract: 
  • Advanced imaging techniques crucially depend on the labels used. In this work, we present the structure-guided design of a fluorescent protein that displays both reversibly photochromic and green-to-red photoconversion behavior. We first designed ffDronpa, a mutant of the photochromic fluorescent protein Dronpa that matures up to three times faster while retaining its interesting photochromic features ...

    Advanced imaging techniques crucially depend on the labels used. In this work, we present the structure-guided design of a fluorescent protein that displays both reversibly photochromic and green-to-red photoconversion behavior. We first designed ffDronpa, a mutant of the photochromic fluorescent protein Dronpa that matures up to three times faster while retaining its interesting photochromic features. Using a combined evolutionary and structure-driven rational design strategy, we developed a green-to-red photoconvertible ffDronpa mutant, called pcDronpa, and explored different optimization strategies that resulted in its improved version, pcDronpa2. This fluorescent probe combines a high brightness with low photobleaching and photoblinking. We herein show that, despite its tetrameric nature, pcDronpa2 allows for multimodal subdiffraction imaging by sequentially imaging a given sample using both super-resolution fluctuation imaging and localization microscopy.


    Organizational Affiliation

    Department of Chemistry, KU Leuven , Celestijnenlaan 200F, bus 2404, 3001 Heverlee, Belgium.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Fluorescent protein Dronpa
A, B, C, D, E, F
A, B, C, D, E, F
258Echinophyllia sp. SC22Mutation(s): 5 
Gene Names: Dronpa
UniProt
Find proteins for Q5TLG6 (Echinophyllia sp. SC22)
Explore Q5TLG6 
Go to UniProtKB:  Q5TLG6
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ5TLG6
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
EPE
Query on EPE

Download Ideal Coordinates CCD File 
G [auth A],
K [auth C],
L [auth E]
4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID
C8 H18 N2 O4 S
JKMHFZQWWAIEOD-UHFFFAOYSA-N
 Ligand Interaction
PGE
Query on PGE

Download Ideal Coordinates CCD File 
H [auth A]TRIETHYLENE GLYCOL
C6 H14 O4
ZIBGPFATKBEMQZ-UHFFFAOYSA-N
 Ligand Interaction
PEG
Query on PEG

Download Ideal Coordinates CCD File 
I [auth A],
J [auth B]
DI(HYDROXYETHYL)ETHER
C4 H10 O3
MTHSVFCYNBDYFN-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
CR8
Query on CR8
A, B, C, D, E, F
A, B, C, D, E, F
L-PEPTIDE LINKINGC17 H16 N5 O4HIS, TYR, GLY
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Free: 0.235 
  • R-Value Work: 0.184 
  • R-Value Observed: 0.187 
  • Space Group: P 2 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 72.378α = 90
b = 107.186β = 90
c = 180.183γ = 90
Software Package:
Software NamePurpose
MAR345dtbdata collection
PHASESphasing
PHENIXrefinement
MOSFLMdata reduction
SCALAdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2013-11-13
    Type: Initial release
  • Version 1.1: 2014-02-05
    Changes: Database references
  • Version 1.2: 2014-04-23
    Changes: Database references