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NS5ATP9 gene regulated by NF-kappaB signal pathway
Kang Li1, Qingyong Ma, Lei Shi
1The First Hospital of Xi'an Jiaotong University, Xi'an, PR China.
Abstract:
NS5ATP9 was previously identified as p15 PAF [proliferating cell nuclear antigen (PCNA)-associated factor] to bind with PCNA. We earlier identified the promoter region of NS5ATP9 and found NS5ATP9 is a NS5A up-regulation gene. However little is known about how it is regulated. To investigate the gene regulation of NS5ATP9, we screened NS5ATP9 promoter binding proteins using phage display and verified by electrophoretic mobility shift assay (EMSA). We found that the nuclear protein rhNF-kappaB (p50) could bind to the NS5ATP9 promoter and the binding region contained within a 156 bp (nucleotides -5 to -161bp) immediately upstream of the transcription initiation site. Our results suggest that NF-kappaB could participate in the regulation of NS5ATP9 gene expression in carcinogenesis.
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