Characterization of the human EDF-1 minimal promoter: involvement of NFY and Sp1 in the regulation of basal transcription

Fabrizio Bolognese, Marià Pitarque-Martì, Viviana Lo Cicero, Roberto Mantovani, Jeanette A M Maier
Gene 2006 June 7, 374: 87-95
Endothelial Differentiation Factor (EDF)-1 is a calmodulin binding protein involved in the repression of endothelial cell differentiation, a crucial, late step in angiogenesis. Its expression is cell cycle regulated, although its transcriptional regulation is yet to be determined. To map the promoter region and to understand its regulation, we cloned and fused 2300 bp upstream of EDF-1 translational start site to a luciferase reporter gene. After transient transfection in HeLa cells, this fragment was shown to possess a promoter activity. Deletion constructs of the 5' flanking region of EDF-1 lead to the identification of the minimal promoter region which was highly homologous to the mouse sequence. No TATA box was detected, whereas three consensus sequences--two GC boxes and a CAAT box--were identified. EMSA supershift and chromatin immunoprecipitation demonstrated that these sequences were binding sites for Sp1/Sp3 and NFY, respectively. Deletion of Sp1/Sp3 and NF-Y consensus sequences resulted in the total loss of EDF-1 promoter activity. Our studies indicate that Sp1 and NFY binding is essential for EDF-1 promoter activity.

Full Text Links

Find Full Text Links for this Article


You are not logged in. Sign Up or Log In to join the discussion.

Related Papers

Remove bar
Read by QxMD icon Read

Save your favorite articles in one place with a free QxMD account.


Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"