4.4 Article

Arsenic trioxide preferentially binds to the ring finger protein PML: understanding target selection of the drug

Journal

METALLOMICS
Volume 10, Issue 11, Pages 1564-1569

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c8mt00202a

Keywords

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Funding

  1. National Key R&D Program of China [2017YFA0505400]
  2. National Science Foundation of China [21877103, 21573213]
  3. Major Program of Development Foundation of Hefei Center for Physical Science and Technology [2018ZYFX004]
  4. Suzhou Science and Technology Project [SYG201624]
  5. Jiangsu Natural Science Foundation [BK20151238]
  6. Collaborative Innovation Center of Suzhou Nano Science and Technology

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Arsenic trioxide (ATO) is used in the clinic for the treatment of acute promyelocytic leukemia by targeting the protein PML. However, many zinc-finger proteins could also be reactive to arsenic in cells. Here we found that ATO preferentially binds to the ring-finger domain of PML in a protein mixture with zinc-finger domains. These results provide the molecular basis of the target selection of ATO in cells.

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