Alu = Alu repeat, ID4 =  ID4 short interspersed nuclear repeat (SINE), L1 =  L1 long interspersed nuclear element (LINE), L2 =  L2 LINE, MIR = MIR SINE, MLT1L = MLT1L long terminal repeat (LTR), (TATG)n = TATG tetranucleotide repeat, tis = transcription initiation site.