4PFE

Crystal structure of vsfGFP-0


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.603 Å
  • R-Value Free: 0.255 
  • R-Value Work: 0.199 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Rational Structure-Based Design of Bright GFP-Based Complexes with Tunable Dimerization.

Eshaghi, M.Sun, G.Gruter, A.Lim, C.L.Chee, Y.C.Jung, G.Jauch, R.Wohland, T.Chen, S.L.

(2015) Angew.Chem.Int.Ed.Engl. 54: 13952-13956

  • DOI: 10.1002/anie.201506686

  • PubMed Abstract: 
  • Fluorescent proteins are transformative tools; thus, any brightness increase is a welcome improvement. We invented the "vGFP strategy" based on structural analysis of GFP bound to a single-domain antibody, predicting tunable dimerization, enhanced br ...

    Fluorescent proteins are transformative tools; thus, any brightness increase is a welcome improvement. We invented the "vGFP strategy" based on structural analysis of GFP bound to a single-domain antibody, predicting tunable dimerization, enhanced brightness (ca. 50%), and improved pH resistance. We verified all of these predictions using biochemistry, crystallography, and single-molecule studies. We applied the vsfGFP proteins in three diverse scenarios: single-step immunofluorescence in vitro (3× brighter due to dimerization); expression in bacteria and human cells in vivo (1.5× brighter); and protein fusions showing better pH resistance in human cells in vivo. The vGFP strategy thus allows upgrading of existing applications, is applicable to other fluorescent proteins, and suggests a method for tuning dimerization of arbitrary proteins and optimizing protein properties in general.


    Organizational Affiliation

    National University of Singapore, Department of Medicine, Yong Loo Lin School of Medicine, 1E Kent Ridge Road, NUHS Tower Block, Level 10, Singapore 119074 (Singapore).




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Green fluorescent protein
A, B
345Aequorea victoriaMutation(s): 11 
Gene Names: GFP
Find proteins for P42212 (Aequorea victoria)
Go to UniProtKB:  P42212
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
CRO
Query on CRO
A, B
L-PEPTIDE LINKINGC15 H17 N3 O5THR, TYR, GLY
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.603 Å
  • R-Value Free: 0.255 
  • R-Value Work: 0.199 
  • Space Group: P 41 21 2
Unit Cell:
Length (Å)Angle (°)
a = 83.426α = 90.00
b = 83.426β = 90.00
c = 228.691γ = 90.00
Software Package:
Software NamePurpose
PDB_EXTRACTdata extraction
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data

  • Deposited Date: 2014-04-29 
  • Released Date: 2015-06-24 
  • Deposition Author(s): Jauch, R., Chen, S.L.

Funding OrganizationLocationGrant Number
National Research FoundationSingaporeNRF-RF2010-10
Agency for Science, Technology, and Research/Genome Institute of SingaporeSingapore--

Revision History 

  • Version 1.0: 2015-06-24
    Type: Initial release
  • Version 1.1: 2016-02-10
    Type: Database references