BINOTE AND TRISTAVE GRAPHIC CODE OF DNA SEQUENCE
DNA序列的“双符三阶”图形编码

The graphic coding of DNA sequence is the geometric representation of DNA sequences by means of different notes and line segments in different positions. The letter coding (C?T?A?G) of DNA is the most fundamental representation of DNA sequence for information storage, comparision and analyzing of the gene data. But as compared to the DNA letter coding, the DNA graphic coding is more intuitive, direct visualizing and more convenient for searching and comparing the similarity of DNA seg-ments. After analyzing different formats of DNA graphic representations,a new graphic coding pattern for DNA sequence with binote and tristave method was suggested. The binote-tristave graphic code of DNA sequence is originated from the horizontal displacement of the digital coding plane of DNA nu-cleotides. It is one to one corresponding to the DNA letter coding, plotable and readable by computer. The binote-tristave DNA graphic code is especially suitable for searching and comparing the unknown DNA short sequences and is of significant value for the bioinformatic analysis of gene data.