Codon usage trajectories and 7-cluster structure of 143 complete bacterial genomic sequences

Alexander Gorban, Tatyana Popova and Andrey Zinovyev

Physica A: Statistical Mechanics and its Applications, 2005, vol. 353, issue C, 365-387

Abstract: Three results are presented. First, we prove the existence of a universal 7-cluster structure in all 143 completely sequenced bacterial genomes available in Genbank in August 2004, and explained its properties. The 7-cluster structure is responsible for the main part of sequence heterogeneity in bacterial genomes. In this sense, our 7 clusters is the basic model of bacterial genome sequence. We demonstrated that there are four basic “pure” types of this model, observed in nature: “parallel triangles”, “perpendicular triangles”, degenerated case and the flower-like type.

Keywords: Genome; Cluster; Codon usage; Correlations; Entropy; Mean field (search for similar items in EconPapers)
Date: 2005
References: View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:353:y:2005:i:c:p:365-387

DOI: 10.1016/j.physa.2005.01.043

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