Structural complex of FTO/fluorescein

Experimental Data Snapshot

  • Resolution: 2.16 Å
  • R-Value Free: 0.229 
  • R-Value Work: 0.198 
  • R-Value Observed: 0.199 

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Fluorescein Derivatives as Bifunctional Molecules for the Simultaneous Inhibiting and Labeling of FTO Protein

Wang, T.Hong, T.Huang, Y.Su, H.Wu, F.Chen, Y.Wei, L.Huang, W.Hua, X.Xia, Y.Xu, J.Gan, J.Yuan, B.Feng, Y.Zhang, X.Yang, C.G.Zhou, X.

(2015) J Am Chem Soc 137: 13736-13739

  • DOI: https://doi.org/10.1021/jacs.5b06690
  • Primary Citation of Related Structures:  
    4ZS2, 4ZS3

  • PubMed Abstract: 

    The FTO protein is unequivocally reported to play a critical role in human obesity and in the regulation of cellular levels of m(6)A modification, which makes FTO a significant and worthy subject of study. Here, we identified that fluorescein derivatives can selectively inhibit FTO demethylation, and the mechanisms behind these activities were elucidated after we determined the X-ray crystal structures of FTO/fluorescein and FTO/5-aminofluorescein. Furthermore, these inhibitors can also be applied to the direct labeling and enrichment of FTO protein combined with photoaffinity labeling assay.

  • Organizational Affiliation

    State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , Shanghai 201203, China.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Alpha-ketoglutarate-dependent dioxygenase FTO478Homo sapiensMutation(s): 0 
Gene Names: FTOKIAA1752
EC: 1.14.11
UniProt & NIH Common Fund Data Resources
Find proteins for Q9C0B1 (Homo sapiens)
Explore Q9C0B1 
Go to UniProtKB:  Q9C0B1
GTEx:  ENSG00000140718 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9C0B1
Sequence Annotations
  • Reference Sequence
Small Molecules
Experimental Data & Validation

Experimental Data

  • Resolution: 2.16 Å
  • R-Value Free: 0.229 
  • R-Value Work: 0.198 
  • R-Value Observed: 0.199 
  • Space Group: H 3
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 142.66α = 90
b = 142.66β = 90
c = 83.218γ = 120
Software Package:
Software NamePurpose
HKL-3000data reduction
HKL-3000data scaling

Structure Validation

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Ligand Structure Quality Assessment 

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2015-11-04
    Type: Initial release
  • Version 1.1: 2015-11-18
    Changes: Database references