Deletion of -5kb to immediately upstream of the start of transcription, within the run upstream region.
BglII-BamHI run enhancer fragment and 1.3kb run promoter fragment of immediate upstream DNA (-1300 to +450bp) drives lacZ expression.
This larger basal promoter alone confers transcriptional activation at a low level in all cells of the blastoderm embryo, activation above this level as well as inhibition could be detected.
This larger basal promoter alone confers transcriptional activation at a low level in all cells of the blastoderm embryo, activation above this level as well as inhibition could be detected.