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Updated: Jun 30, 2026

Atomic Force Microscopy Investigations of DNA Lesion Recognition in Nucleotide Excision Repair
Published on: May 24, 2017
Dynamic intracellular distribution of Eaf2 and its potential involvement in UV-Induced DNA damage response
Fengfeng Zhuang1, Philip Yen, Jiangyue Zhao
1Department of Ophthalmology, Keck School of Medicine, University of Southern California, Los Angeles, California 90033, USA.
Abstract:
Eaf2 encodes a tumor suppressor that plays multiple functions in transcriptional activation, apoptosis, and embryonic development. In this study, we utilized GFP-EAF2 fusion protein to describe the dynamic subcellular movement of Eaf2. GFP-EAF2 is preferentially localized to the nucleus, and in the presence of ELL, it accumulates in nuclear speckles. However, Eaf2 is an unstable nuclear protein whose stability is affected by serum. Further, we provided first evidence that nuclear distribution of Eaf2 is responsive to DNA damage. Following UV irradiation, Eaf2 is relocalized to the nucleolus, suggesting a possible functional involvement of Eaf2 in DNA damage response.
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