Abstract:
:SND p102 is a rat liver endoplasmic reticulum cholesterol ester hydrolase recently described as a member of a conserved family of transcriptional coactivators that promotes phospholipid secretion into lipoproteins when overexpressed in hepatocytes. In this work, we report first evidence for a mechanism of transcriptional regulation for the SND p102 (Snd1) gene. Promoter activity of 5' deletion fragments determined in human HepG2 and rat McA-RH7777 hepatoma cells by luciferase reporter gene assays showed a minimal promoter involving two inverted CCAAT boxes. EMSA demonstrated specific binding of Sp1 to GC boxes in the proximal, highly active promoter region besides that of NF-Y to CCAAT boxes reported earlier. Site-directed disruption of such CCAAT and GC boxes led to reduction in transcriptional activity, confirming the functional implication of NF-Y and Sp1 in SND p102 gene transcription.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Rodríguez L,Ochoa B,Martínez MJdoi
10.1016/j.bbrc.2007.02.110subject
Has Abstractpub_date
2007-04-27 00:00:00pages
226-32issue
1eissn
0006-291Xissn
1090-2104pii
S0006-291X(07)00418-4journal_volume
356pub_type
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