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. 2014 Mar 20;42(9):5937–5948. doi: 10.1093/nar/gku189

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© The Author(s) 2014. Published by Oxford University Press on behalf of Nucleic Acids Research.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 3. — B-to-Z transition induced by caZα_PKZ mutants. The Y-axis and X-axis display the ellipticity (mdeg) difference during B-to-Z transition at 292 nm and 255 nm, respectively. The wild-type, K34A, S35A, N38A, R39A, Y42A, K56A, W60A, R39A/K56A, S35A/R39A/K56A, K56A/P57A, S35A/K56A/P57A, R39A/K56A/P57A and S35A/R39A/K56A/P57A mutants of caZα_PKZ were tested at a [P]/[N] ratio of 4. The plots are clustered in three groups by using k-means clustering algorithm. The names of phosphate groups inside of parentheses indicate the possible interaction between the residues in the mutants and the backbone phosphates. An asterisk indicates the phosphate groups that lose one of their residue interactions by mutation. In this case, their interactions with proteins partially remain.