PUBLICATION

Crystal structure of the RNA demethylase ALKBH5 from zebrafish

Authors
Chen, W., Zhang, L., Zheng, G., Fu, Y., Ji, Q., Liu, F., Chen, H., He, C.
ID
ZDB-PUB-140513-485
Date
2014
Source
FEBS letters   588: 892-8 (Journal)
Registered Authors
Chen, Hao
Keywords
ALKBH5, Crystal structure, Demethylation, N(6)-Hydroxymethyladenosine
MeSH Terms
  • Amino Acid Sequence
  • Animals
  • Catalytic Domain
  • Coordination Complexes/chemistry
  • Crystallography, X-Ray
  • Dioxygenases/chemistry*
  • Hydrogen Bonding
  • Manganese/chemistry
  • Membrane Proteins
  • Models, Molecular
  • Molecular Sequence Data
  • Protein Binding
  • Protein Structure, Secondary
  • Sequence Homology, Amino Acid
  • Zebrafish*
  • Zebrafish Proteins/chemistry*
PubMed
24561204 Full text @ FEBS Lett.
Abstract

ALKBH5, a member of AlkB family proteins, has been reported as a mammalian N 6-methyladenosine (m6A) RNA demethylase. Here we report the crystal structure of zebrafish ALKBH5 (fALKBH5) with the resolution of 1.65 Å. Structural superimposition shows that fALKBH5 is comprised of a conserved jelly-roll motif. However, it possesses a loop that interferes potential binding of a duplex nucleic acid substrate, suggesting an important role in substrate selection. In addition, several active site residues are different between the two known m6A RNA demethylases, ALKBH5 and FTO, which may result in their slightly different pathways of m6A demethylation.

Genes / Markers
Figures
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Antibodies
Orthology
Engineered Foreign Genes
Mapping