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Updated: May 8, 2026

Localization of SUMO-modified Proteins Using Fluorescent Sumo-trapping Proteins
Published on: April 27, 2019
Characterization of the nuclear localization signal of the mouse TET3 protein
Peng Xiao1, Xiao-long Zhou, Hong-xiao Zhang
1College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, People's Republic of China.
Abstract:
DNA demethylation is associated with gene activation and is mediated by a family of ten-eleven translocation (TET) dioxygenase. The TET3 protein is a 1668-amino-acid DNA demethylase that is predicted to possess five nuclear localization signals (NLSs). In this paper, we used a series of green fluorescent protein-tagged and mutation constructs to identify a conserved NLS (KKRK) embedded between amino acid 1615 and 1618 of mouse TET3. The KKRK sequence facilitates the cytoplasmic protein's translocation into the nucleus. Additionally TET3 may be imported into the nucleus by importin-α and importin-β.
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