OBSOLETE SO:0001058 promoter_targeting_sequence (obsolete SO:0001058)
A transcriptional_cis_regulatory_region that restricts the activity of a CRM to a single promoter and which functions only when both itself and an insulator are located between the CRM and the promoter.
SO:0001055
transcriptional_cis_regulatory_region
is_a
promoter targeting sequence
exact