>upstream.mmu.U6atac.104659677.104659777.chrX.-1.cut
TTTCTGGCAATTTCAGAGAACGTCTTTAAAAAAAATAATTACACAATTATTACACAAACTGTTGTGTAAACAGAATCTAT
TCATTAAGAATGTAAATCTGG
>upstream.mmu.U6atac.68360994.68361094.chr5.-1.cut
TAATGAACCATTACCTAGATCTGGGCTCCCAACCTCAGCCTTAACGTGTAGCTCAACACAAAGTAATCAAAATGATAAAT
TAATTAAAACATTACAACTTG
