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SWORDS: a statistical tool for analysing large DNA sequences.

Probal Chaudhuri¹, Sandip Das

¹Theoretical Statistics and Mathematics Unit, Indian Statistical Institute, 203 BT Road, Kolkata 700 108, India. probal@isical.ac.in

Journal of Biosciences

|April 3, 2002

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This study introduces SWORDS, a software tool using DNA word frequency analysis for large DNA sequence comparison. It helps biologists find significant biological features within DNA data.

Area of Science:

Bioinformatics
Computational Biology
Genomics

Background:

Analyzing large DNA sequences is crucial for understanding biological functions.
Existing methods may lack efficiency or accessibility for complex sequence data.

Purpose of the Study:

To present statistical techniques for analyzing and comparing large DNA sequences.
To introduce the SWORDS software package for practical application of these techniques.

Main Methods:

Utilizing frequency distributions of DNA words within large sequences.
Developing and packaging these statistical methods into user-friendly software (SWORDS).

Main Results:

SWORDS provides a convenient method for analyzing DNA sequence data.

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The software effectively unmasks biologically significant features and assesses their statistical relevance.

Conclusions:

SWORDS offers a valuable tool for molecular biologists and geneticists.
Statistical analysis of DNA word frequencies is effective for uncovering hidden biological information in large sequences.