Zipf's Law Probably Existing in Protein Sequences

LI Yu-jian; XIAO Chuang-bo

doi:10.3969/j.issn.0254-0037.2005.04.007

Journal of Beijing University of Technology > 2005 > 31(4): 366-368. > DOI: 10.3969/j.issn.0254-0037.2005.04.007

LI Yu-jian, XIAO Chuang-bo. Zipf's Law Probably Existing in Protein Sequences[J]. Journal of Beijing University of Technology, 2005, 31(4): 366-368. DOI: 10.3969/j.issn.0254-0037.2005.04.007

Citation:

LI Yu-jian, XIAO Chuang-bo. Zipf's Law Probably Existing in Protein Sequences[J]. Journal of Beijing University of Technology, 2005, 31(4): 366-368. DOI: 10.3969/j.issn.0254-0037.2005.04.007

Citation:

LI Yu-jian, XIAO Chuang-bo. Zipf's Law Probably Existing in Protein Sequences[J]. Journal of Beijing University of Technology, 2005, 31(4): 366-368. DOI: 10.3969/j.issn.0254-0037.2005.04.007

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Zipf's Law Probably Existing in Protein Sequences

Beijing Municipal Key Laboratory of Multimedia and Intelligent Software Technology, College of Computer Science, Beijing University of Technology, Beijing 100022, China

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Received Date: October 31, 2004
Available Online: November 21, 2022

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In order to analyze whether Zipf's law in linguistics exists in protein sequences, this paper uses 1.735 7 × 10⁴ protein sequences labeled with secondary structures which are selected from the DSSP database. The segments of successive amino acid residues with a same code of secondary structure are defined as words. The results show that the distribution of word emerging frequency follows Zipf's law with the exponent as 0.981.
- protein sequence,
- word,
- Zipf's law

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[4]	游荣彦.Zipf定律与汉字字频分布[J].中文信息学报,1999,14(3):60-65. YOU Rong-yan. Zipf's law and the distribution of Chinese character frequency[J]. Journal of Chinese Information Processing, 1999, 14(3):60-65. (in Chinese)
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