<sequence type="unambiguous_DNA"> <seq>acggatattatcgcggcatcgat...ctatgcgatcatcg</seq> <name>Regulatory gene ...</name> <gcContent>0.57</gcContent> </sequence>
oligonucleotides -> GC content -> melting temperature -> palindromes -> repeats -> ... These analysis could both be used in separate programs for simlar but slightly different tasks such as designing PCR primers and hybridization probes