Identification of putative PPREs in promoter of NHE1 and MnSOD. (A) Human MnSOD promoter sequence from NCBI and Ensembl (Sequence IDs indicated). Alu element underlined, with putative PPREs italicized and bold. Transcriptional start site (G) and ATG translational start codon shown in figure. (B) We predicted PPRE1 and PPRE3 with PPARγ binding efficiencies indicated.