序列操作套件 SMS2：
DNA 过滤
去除文本中的非 DNA 字符（数字、空格等）。
载入示例数据
填充示例序列，方便快速体验
Paste the text into the text area below. Input limit is 500,000,000 characters.
1 ttaagatttg cgctttgcca actgtacacc caacctcggt 41 ttattgtcga acctcccgct tgtgccgcca tctgcatata 81 gatcccggtc agtccgtcac attctgccaa ttgagtatcc 121 tcgaagtctt attccacgtg ctcaaagcaa gggtatcgta 161 cagtgataac cgcctcgtgc agatccaaat tctcgattaa 201 cactcaagta ctgattttta tcatcaggta actaaaaact 241 cacaatttga agcaccagcg agaatcgttc tattctctag 281 cttcgcaaca tcgacagttg taatggcata acttcggcat 321 tcatagtggc tgagtttagc ggactaagcg aaaaactggt 361 cgttagatct tcctcaccat gattttacaa gaaaggtgaa 401 ctcaatttga cggcggtaaa gttagatggc tacgcgcgac 441 aagtctccgt atcgtcatga aattagcgaa gaggtaatgg 481 caaagcttgg ctacgaatac aggagcgcgc tgtgattaca 521 gtagggttag gatagcgaaa acgttcaacg tggatagact 561 cttatcggca cacgatcata tgcttccaag gttcccaagg 601 cgaattacta gggtgcacag agctacgagt acgctgtccg 641 gcttgattcg ctcgtacatc cactgttcaa aaagctccga 681 taccgacgat cactctcgat ctctgtgtgg gacgcactta 721 ttgtggaatc agtcaaccag tgaagcattc acatgtacgt 761 ggtacggcac gccgtggtat gttagcgttc cctgcgccgc 801 aagtaaaccc ttcagctgtc acctcctata gtaacacgct 841 cgcatgcaga gcctagcacc ttagctctga gttgcctgcc 881 ggaaggatat attctgtatg tgattaaagc gaagtcaaag 921 taaacccccc acatgcagac ctgggtaaat tctcactcag 961 ttgaaacgta ggggccaata cgtgtgtcct tgatactact
remove non 'gatcn' characters
remove non 'gatcryswkmbdhvnx' characters
remove 't'
remove 'u'
remove white space
remove digits
remove digits and white space
remove everything except lowercase letters
remove everything except uppercase letters
replace removed characters with nothing
replace removed characters with 'n'
replace removed characters with 'N'
replace removed characters with 't'
replace removed characters with 'T'
replace removed characters with 'u'
replace removed characters with 'U'
replace removed characters with '-'
replace removed characters with '?'
replace removed characters with '*'
convert remaining characters to uppercase
convert remaining characters to lowercase
don't change the case of remaining characters