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ZNF10 inhibits HIV-1 LTR activity through interaction with NF-κB and Sp1 binding motifs. | LitMetric

ZNF10 inhibits HIV-1 LTR activity through interaction with NF-κB and Sp1 binding motifs.

FEBS Lett

Department of Life and Environmental Sciences, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba 275-0016, Japan; Research Institute, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba 275-0016, Japan. Electronic address:

Published: July 2015

AI Article Synopsis

Article Abstract

Kruppel-associated box-containing zinc finger (KRAB-ZNF) genes constitute the single largest gene family of transcriptional repressors in the genomes of higher organisms. In this study, we isolated 52 cDNA clones of KRAB-ZFPs from U1 cell lines and screened them to identify which were capable of regulating HIV-1 gene expression. We identified 5 KRAB-ZFPs that suppressed ⩾50% of HIV-1 LTR. Of the 5 identified KRAB-ZFPs, the expression of ZNF10 significantly enhanced the transcriptional repression activity of the LTR compared with other ZNFs. In addition, the depletion of endogenous ZNF10 led to the activation of HIV-1 LTR. The repressor activity of ZNF10 was required for TRIM28, SETDB1 and HP1-gamma binding. These results indicate that ZNF10 could be involved in a potent intrinsic antiretroviral defense.

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Source
http://dx.doi.org/10.1016/j.febslet.2015.06.013DOI Listing

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