3AI5

Crystal structure of yeast enhanced green fluorescent protein-ubiquitin fusion protein


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.4 Å
  • R-Value Free: 0.209 
  • R-Value Work: 0.179 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystallization of small proteins assisted by green fluorescent protein

Suzuki, N.Hiraki, M.Yamada, Y.Matsugaki, N.Igarashi, N.Kato, R.Dikic, I.Drew, D.Iwata, S.Wakatsuki, S.Kawasaki, M.

(2010) Acta Crystallogr.,Sect.D 66: 1059-1066

  • DOI: 10.1107/S0907444910032944
  • Primary Citation of Related Structures:  3AI4

  • PubMed Abstract: 
  • The generation of crystal lattice contacts by proteinaceous tags fused to target proteins is an attractive approach to aid in the crystallization of otherwise intractable proteins. Here, the use of green fluorescent protein (GFP) fusions for this pur ...

    The generation of crystal lattice contacts by proteinaceous tags fused to target proteins is an attractive approach to aid in the crystallization of otherwise intractable proteins. Here, the use of green fluorescent protein (GFP) fusions for this purpose is demonstrated, using ubiquitin and the ubiquitin-binding motif (UBM) of Y-family polymerase ι as examples. The structure of the GFP-ubiquitin fusion protein revealed that the crystal lattice was formed by GFP moieties. Ubiquitin was accommodated in the lattice through interactions with the peripheral loops of GFP. However, in the GFP-UBM fusion crystal UBM formed extensive interactions with GFP and these interactions, together with UBM dimerization, mediated the crystal packing. Interestingly, the tyrosine residues that are involved in mediating crystal contacts in both GFP-ubiquitin and GFP-UBM crystals are arranged in a belt on the surface of the β-barrel structure of GFP. Therefore, it is likely that GFP can assist in the crystallization of small proteins and of protein domains in general.


    Organizational Affiliation

    Structural Biology Research Center, Photon Factory, Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
yeast enhanced green fluorescent protein,Ubiquitin
A
309Mus musculusAequorea victoria
This entity is chimeric
Gene Names: Uba52 (Ubcep2), GFP
Find proteins for P62984 (Mus musculus)
Go to UniProtKB:  P62984
Find proteins for P42212 (Aequorea victoria)
Go to UniProtKB:  P42212
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
EDO
Query on EDO

Download SDF File 
Download CCD File 
A
1,2-ETHANEDIOL
ETHYLENE GLYCOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
CR2
Query on CR2
A
L-PEPTIDE LINKINGC13 H13 N3 O4GLY, TYR, GLY
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.4 Å
  • R-Value Free: 0.209 
  • R-Value Work: 0.179 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 92.515α = 90.00
b = 65.649β = 130.34
c = 70.225γ = 90.00
Software Package:
Software NamePurpose
ADSCdata collection
HKL-2000data scaling
HKL-2000data reduction
MOLREPphasing
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-09-29
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2017-06-14
    Type: Database references, Source and taxonomy, Structure summary