A active protein fragment containing a amino terminal domain from SREBP 1a [__NODE__] protein is involved in transcription of a luciferase reporter gene with a DNA endogenous promoter containing a NF Y binding site 1 3 and a __NODE__ binding site and a SRE 1 5 and a __NODE__ binding site 1 3 from the __SP__ __NODE__ gene that is decreased by __NODE__ protein .