>upstream.ptr.U4atac.163970549.163970649.chr5.-1.cut CAGCTGAGTTAGGCATACTATAGTCTCAGTTTCAGTATCTAACCAGCTTCAAGTCACCATTTCAAATGAAATATCAACGC ATGATGAAAGTTAACTTACTA >upstream.ptr.U4atac.33661691.33661791.chr11.1.cut TAACCATCCTGAAATCTTCCAGAATGTCAAGGTCATGATAGTCAAAGACTGAGAAAATGTTCTCATCACAATTTTGAAGG AAAATAAAGAGAAATAACTAA >upstream.ptr.U4atac.65803823.65803923.chr1.-1.cut AGATTCTAATCTGATCTGTGTCTCTAATGCCCACTGTTCTCCCATTGCTTAATATCACCGTATGTTAGGCTGTTCTTGCA TTGCTATAAAGAAATATCTAA