MRE
CCGCCCATTGCGTTCACAGGGTTCTGGCGCCTCTAGGGAGGCCTCGCCTTCAC
                Sp1                                        Sp1   
CGTGACGCCCCACTCTTCCGGGCACGCCCCTGCCCAAAGGCTTTAAAGGCGCC
                     ARE                                                        IRE
GTGTGGGACGTCACTTTAATGCGACCTCATCTTTGTCAGTGCACAAAatggcgcccta
cagcctactggtgactcggctgcagg