2G6X

Crystal structure of a novel green fluorescent protein from marine copepod Pontellina plumata


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.246 
  • R-Value Work: 0.192 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural basis for the fast maturation of Arthropoda green fluorescent protein.

Evdokimov, A.G.Pokross, M.E.Egorov, N.S.Zaraisky, A.G.Yampolsky, I.V.Merzlyak, E.M.Shkoporov, A.N.Sander, I.Lukyanov, K.A.Chudakov, D.M.

(2006) Embo Rep. 7: 1006-1012

  • DOI: 10.1038/sj.embor.7400787
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Since the cloning of Aequorea victoria green fluorescent protein (GFP) in 1992, a family of known GFP-like proteins has been growing rapidly. Today, it includes more than a hundred proteins with different spectral characteristics cloned from Cnidaria ...

    Since the cloning of Aequorea victoria green fluorescent protein (GFP) in 1992, a family of known GFP-like proteins has been growing rapidly. Today, it includes more than a hundred proteins with different spectral characteristics cloned from Cnidaria species. For some of these proteins, crystal structures have been solved, showing diversity in chromophore modifications and conformational states. However, we are still far from a complete understanding of the origin, functions and evolution of the GFP family. Novel proteins of the family were recently cloned from evolutionarily distant marine Copepoda species, phylum Arthropoda, demonstrating an extremely rapid generation of fluorescent signal. Here, we have generated a non-aggregating mutant of Copepoda fluorescent protein and solved its high-resolution crystal structure. It was found that the protein beta-barrel contains a pore, leading to the chromophore. Using site-directed mutagenesis, we showed that this feature is critical for the fast maturation of the chromophore.


    Organizational Affiliation

    X-ray crystallography, HCRC, Discovery, Procter&Gamble Pharmaceuticals, 8700 Mason-Montgomery Road, Mason, Ohio 45040, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
green fluorescent protein 2
A, B, C, D
219Pontellina plumataMutation(s): 8 
Find proteins for Q6WV12 (Pontellina plumata)
Go to UniProtKB:  Q6WV12
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
CR2
Query on CR2
A, B, C, D
L-PEPTIDE LINKINGC13 H13 N3 O4GLY, TYR, GLY
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.246 
  • R-Value Work: 0.192 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 97.747α = 90.00
b = 97.910β = 90.00
c = 172.316γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
SCALEPACKdata scaling
HKL-2000data reduction
PDB_EXTRACTdata extraction
AMoREphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2006-03-28
    Type: Initial release
  • Version 1.1: 2008-05-01
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance