part_of INR_motif Binds TAF1, TAF2. initiator motif INR motif A sequence element characteristic of some RNA polymerase II promoters required for the correct positioning of the polymerase for the start of transcription. Overlaps the TSS. The mammalian consensus sequence is YYAN(T|A)YY; the Drosophila consensus sequence is TCA(G|T)t(T|C). In each the A is at position +1 with respect to the TSS. Functionally similar to the TATA box element. sequence DMp2 SO:0000014 initiator core_eukaryotic_promoter_element RNApol_II_core_promoter