3WCK

Crystal structure of monomeric photosensitizing fluorescent protein, Supernova


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.234 
  • R-Value Work: 0.181 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

SuperNova, a monomeric photosensitizing fluorescent protein for chromophore-assisted light inactivation

Takemoto, K.Matsuda, T.Sakai, N.Fu, D.Noda, M.Uchiyama, S.Kotera, I.Arai, Y.Horiuchi, M.Fukui, K.Ayabe, T.Inagaki, F.Suzuki, H.Nagai, T.

(2013) Sci Rep 3: 2629-2629

  • DOI: 10.1038/srep02629

  • PubMed Abstract: 
  • Chromophore-assisted light inactivation (CALI) is a powerful technique for acute perturbation of biomolecules in a spatio-temporally defined manner in living specimen with reactive oxygen species (ROS). Whereas a chemical photosensitizer including fl ...

    Chromophore-assisted light inactivation (CALI) is a powerful technique for acute perturbation of biomolecules in a spatio-temporally defined manner in living specimen with reactive oxygen species (ROS). Whereas a chemical photosensitizer including fluorescein must be added to specimens exogenously and cannot be restricted to particular cells or sub-cellular compartments, a genetically-encoded photosensitizer, KillerRed, can be controlled in its expression by tissue specific promoters or subcellular localization tags. Despite of this superiority, KillerRed hasn't yet become a versatile tool because its dimerization tendency prevents fusion with proteins of interest. Here, we report the development of monomeric variant of KillerRed (SuperNova) by direct evolution using random mutagenesis. In contrast to KillerRed, SuperNova in fusion with target proteins shows proper localization. Furthermore, unlike KillerRed, SuperNova expression alone doesn't perturb mitotic cell division. Supernova retains the ability to generate ROS, and hence promote CALI-based functional analysis of target proteins overcoming the major drawbacks of KillerRed.


    Organizational Affiliation

    1] Research Institute for Electronic Sciences, Hokkaido University, Kita-20 Nishi-10 Kita-ku, Sapporo, Hokkaido 001-0020, Japan [2] [3].




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Monomeric photosenitizing fluorescent protein supernova
A, B, C, D, E, F, G, H
273Anthomedusae sp. DC-2005Mutation(s): 0 
Find proteins for Q2TCH5 (Anthomedusae sp. DC-2005)
Go to UniProtKB:  Q2TCH5
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
CRQ
Query on CRQ
A, B, C, D, E, F, G, H
L-PEPTIDE LINKINGC16 H16 N4 O5GLN, TYR, GLY
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.234 
  • R-Value Work: 0.181 
  • Space Group: P 1
Unit Cell:
Length (Å)Angle (°)
a = 60.252α = 70.57
b = 89.304β = 89.95
c = 109.885γ = 71.62
Software Package:
Software NamePurpose
HKL-2000data reduction
REFMACrefinement
HKL-2000data scaling
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-10-02
    Type: Initial release