CORRELATION APPROACH TO COMPARING NUCLEOT IDE-SEQUENCES

A new method of evaluation of similarity between two nucleotide sequen ces is proposed. It is based on comparing frequency/correlation dictio naries of the sequences under investigation. The dictionary is a set o f all strings of various length occurring within the sequences accompa nied by their frequencies. The method proposed allows to compare seque nces of arbitrary lengths, its advantage is absence of necessity of in formal (expert) choice of the best fit. Efficiency of the method is de monstrated by comparison of several human genes and viruses.