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摘要: A novel 3-D graphical representation of protein sequence has been introduced. right cone a unit base and height selected to represent sequences on its surface. The twenty amino acids have represented by 20 circles all protein's residues n lines the cone's All spots which shown in top view. spatial median is used as new descriptor any sequence. This approach was applied two short segments yeast Saccharomyces cerevisiae. examination similarities/dissimilarities for eight ND5 proteins six β-globin illustrate utility our approach. linear correlation significance analysis provided compare results percentage alignment identity.