Putative cis-acting regulatory elements in the miR399f promoter. A, Genomic organization of miR399f (At2g34208) flanking regions. The location of the TATA-like sequence (TATAATTA) of the miR399f gene is indicated. B, Putative cis-acting regulatory sequences on the miR399 promoter. An area 1,384 bp upstream of the transcription start site was analyzed using PlantCARE. The selected matrix score for all cis-acting elements was 5 or greater. MBS, MYB2-binding site; LTR, low-temperature response; ARE, anaerobic response element; ACE, ACGT-containing element; MRE, MYB recognition element; AE-box, activating element box.