3P8U image
Entry Detail
PDB ID:
3P8U
Title:
Crystal structure of mEosFP in its green state
Biological Source:
Source Organism:
Host Organism:
PDB Version:
Deposition Date:
2010-10-15
Release Date:
2011-10-19
Method Details:
Experimental Method:
Resolution:
2.25 Å
R-Value Free:
0.28
R-Value Work:
0.23
R-Value Observed:
0.23
Space Group:
P 21 21 21
Macromolecular Entities
Polymer Type:polypeptide(L)
Description:Green to red photoconvertible GPF-like protein EosFP
Mutations:V123T T158H
Chain IDs:A, B, C, D
Chain Length:232
Number of Molecules:4
Biological Source:Lobophyllia hemprichii
Modified Residue
Compound ID Chain ID Parent Comp ID Details 2D Image
CR8 A HIS CIRCULARIZED TRI-PEPTIDE CHROMOPHORE
Primary Citation
Rational design of photoconvertible and biphotochromic fluorescent proteins for advanced microscopy applications.
Chem.Biol. 18 1241 1251 (2011)
PMID: 22035793 DOI: 10.1016/j.chembiol.2011.08.007

Abstact

Advanced fluorescence imaging, including subdiffraction microscopy, relies on fluorophores with controllable emission properties. Chief among these fluorophores are the photoactivatable fluorescent proteins capable of reversible on/off photoswitching or irreversible green-to-red photoconversion. IrisFP was recently reported as the first fluorescent protein combining these two types of phototransformations. The introduction of this protein resulted in new applications such as super-resolution pulse-chase imaging. However, the spectroscopic properties of IrisFP are far from being optimal and its tetrameric organization complicates its use as a fusion tag. Here, we demonstrate how four-state optical highlighting can be rationally introduced into photoconvertible fluorescent proteins and develop and characterize a new set of such enhanced optical highlighters derived from mEosFP and Dendra2. We present in particular NijiFP, a promising new fluorescent protein with photoconvertible and biphotochromic properties that make it ideal for advanced fluorescence-based imaging applications.

Legend

Protein

Chemical

Disease

Primary Citation of related structures