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. 2010 Apr 25;38(16):5493–5506. doi: 10.1093/nar/gkq276

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© The Author(s) 2010. Published by Oxford University Press.

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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Figure 3. — Inhibition of the phosphohydrolase activity by 6-methyl-thio-ITP. (A) Dose-response inhibition of the ATPase activity by 2-amino-ATP (P₈). (B) Competitive inhibition of the ATPase reaction by 6-methyl-thio-ITP (P₁₄). The ATPase activity was evaluated in the absence (filled square) or presence of 0.5 (filled triangle) or 1 mM (filled circle) of P₁₄. Each value represents the average of at least three independent experiments. Error bars represent the S.D. of the mean values.