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Comparative Study
. 1982 Jan 11;10(1):365-74.
doi: 10.1093/nar/10.1.365.

Two-dimensional graphic analysis of DNA sequence homologies

R Harr, P Hagblom, P Gustafsson
Free PMC article
Comparative Study

Two-dimensional graphic analysis of DNA sequence homologies

R Harr et al. Nucleic Acids Res. .
Free PMC article

Abstract

We describe a computer program designed to facilitate the pattern matching analysis of homologies between DNA sequences. It takes advantage of a two-dimensional plot in order to simplify the evaluation of significant structures inherited in the sequences. The program can be divided into three parts, i) algorithm for search of homologies, ii) two-dimensional graphic display of the result, iii) further graphic treatment to enhance significant structures. The power of the graphic display is presented by the following application of the program. We conducted a search for direct repeats in the mouse immunoglobulin kappa-chain genes. Both the five J DNA sequences and other shorter repeats were found. We also found a longer stretch of homology that could indicate the presence of duplicated DNA in the J4, J5 region.

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References

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