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. 2010 Feb 1;27(6):1449–1459. doi: 10.1093/molbev/msq033

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© The Authors 2010. Published by Oxford University Press on behalf of the Society for Molecular Biology and Evolution.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/2.5), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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FIG. 3. — Distribution of amino acid sequence lengths for TFs. On x axis, the intervals of protein size are shown and on y axis, the normalized frequency of TFs per interval is shown. Thousand groups of 3,918 protein sequences were randomly retrieved from archaeal genome sequences to compare the length distribution of TFs against other protein-coding genes. In each length internal, bars marked as random represent the proportion of proteins in an interval ± their standard deviations from the average in the random samples.