序列操作套件 SMS2：
DNA 模式查找
查找 DNA 序列中匹配指定模式的位点与数量。
载入示例数据
填充示例序列，方便快速体验
Paste a raw sequence or one or more FASTA sequences into the text area below. White space and digits are removed before the pattern matching is performed. Input limit is 500,000,000 characters.
>sample sequence one ttaaggaccccatgccctcgaataggcttgagcttgccaattaacgcgcacgggctggccgggcgtataagccaaggtgtagtgaggttgcattatacatgccggcttgtgattaacgcatgccataggacggttaggctcagaacccgcaaccaatacacgtgattttctcgtcccctg >sample sequence two aggcgtatgcgatcctgaccatgcaaaactccagcgtaaatacctagccatggcgacacaaggcgcaagacaggagatgacggcgtttagatcggcgaaatattaaagcaaacgacgatgacttcttcgggaaattagttccctactcgtgtactccaattagccataacactgttcgtcaagatatagggggtcacccatgaatgtcctctaaccagaccatttcgttacacgaacgtatct >sample sequence three tactcagggctccagaggtacaagttggtaatcggttaggtgtatcgccgccaggggtgcgtcgtcatgactcggttaga
Enter the
search pattern
to be used. The default pattern "ctt[ca]" searches for occurrences of "cttc" and "ctta".