Green Fluorescent Protein Mutant F99S, M153T and V163A

Experimental Data Snapshot

  • Resolution: 2.40 Å
  • R-Value Free: 0.280 
  • R-Value Work: 0.204 
  • R-Value Observed: 0.204 

Starting Model: experimental
View more details

wwPDB Validation   3D Report Full Report

This is version 1.5 of the entry. See complete history


Crystal structure and refolding properties of the mutant F99S/M153T/V163A of the green fluorescent protein.

Battistutta, R.Negro, A.Zanotti, G.

(2000) Proteins 41: 429-437

  • DOI: https://doi.org/10.1002/1097-0134(20001201)41:4<429::aid-prot10>3.0.co;2-d
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    The mutant F99S/M153T/V163A of the Green Fluorescent Protein (c3-GFP) has spectral characteristics similar to the wild-type GFP, but it is 42-fold more fluorescent in vivo. Here, we report the crystal structure and the refolding properties of c3-GFP and compare them with those of the less fluorescent wt-GFP and S65T mutant. The topology and the overall structure of c3-GFP is similar to the wild-type GFP. The three mutated residues, Ser99, Thr153, and Ala163, lie on the surface of the protein in three different beta-strands. The side chains of Ser99 and Thr153 are exposed to the solvent, whereas that of Ala163 points toward the interior of the protein. No significant deviation from the structure of the wild-type molecule is found around these positions, and there is not clear evidence of any distortion in the position of the chromophore or of the surrounding residues induced by the mutated amino acids. In vitro refolding experiments on urea-denatured c3-GFP reveal a renaturation behavior similar to that of the S65T molecule, with kinetic constants of the same order of magnitude. We conclude that the higher fluorescence activity of c3-GFP can be attributed neither to particular structural features nor to a faster folding process, as previously proposed.

  • Organizational Affiliation

    Dipartimento di Chimica Organica and Centro Studi sui Biopolimeri, Università di Padova, Padova, Italy. roberto@chor.unipd.it

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
A, B, C, D
236Aequorea victoriaMutation(s): 5 
Find proteins for P42212 (Aequorea victoria)
Explore P42212 
Go to UniProtKB:  P42212
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP42212
Sequence Annotations
  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChains TypeFormula2D DiagramParent
Query on CRO
A, B, C, D
Experimental Data & Validation

Experimental Data

  • Resolution: 2.40 Å
  • R-Value Free: 0.280 
  • R-Value Work: 0.204 
  • R-Value Observed: 0.204 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 83.48α = 90
b = 85.37β = 90
c = 140.06γ = 90
Software Package:
Software NamePurpose
MOSFLMdata reduction
CCP4data scaling

Structure Validation

View Full Validation Report

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2000-11-17
    Type: Initial release
  • Version 1.1: 2008-04-26
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2018-03-14
    Changes: Database references
  • Version 1.4: 2023-08-09
    Changes: Data collection, Database references, Derived calculations, Refinement description
  • Version 1.5: 2023-11-15
    Changes: Data collection