A gene promoter is a DNA region involved in initiating transcription. Moving a coding sequence into a nuclear genome does not guarantee that its original gene promoter can drive nuclear gene expression.
A plastid gene promoter directing expression of a photosystem II component. A blue-light-responsive promoter in Arabidopsis thaliana is regulated through SIG5.
The region containing sequence information used for local assembly and initiation by the transcription machinery. Different architectures can support focused or dispersed transcription start sites.
A core promoter element overlapping a transcription start site. In focused human gene promoters, its position has a defined relationship to initiation.[ref]
A core promoter sequence element recognized by TATA-binding protein. Its position and spacing relative to other elements can affect initiation geometry.
