Normalized subband adaptive filter for gene identification application

An important topic in genomic signal processing is the identification of protein coding segments. At first, we review the EIIP values which map the alphabetic DNA sequence into the digital series. Secondly, according to the period-3 behavior of protein coding regions, the Normalized Subband Adaptive Filter (NSAF) approach for gene identification is proposed. Thirdly, the presented approach is applied to identify the protein coding regions in a real nucleotide sequence. It is shown that the developed method is useful for gene prediction by experiments.