Paper Title
Identification of Ubiquitous Forbidden Order in R-Group Classified Amino Acid Sequences

Abstract
Each amino acid in a polypeptide chain has a distinctive R-group associated with it. We report here a novel method of species characterization based upon the order of these R-group classified amino acids in the linear sequence of the side chains associated with the codon triplets. In an otherwise pseudo-random sequence, we search for forbidden combinations of kth order. We demonstrate the efficacy of this method to analyse the available protein sequences of various viruses including SARS-CoV-2. We found that these ubiquitous forbidden orders are unique to each of the viruses we analysed. This unique structure of the viruses may provide an insight into the genomic character of the species. Here we show the application of the method in the analysis of species evolution patterns, phylogenetic comparison, and virus mutations. This finding may have a broad significance for the analysis of coding sequences of species in general. Keywords - Fractals, Amino Acids, Codons, COVID-19