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The plot thickens: How thrombin modulates blood clotting

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The tide of the blood coagulation cascade turns by a switch in thrombin specificity. Two new structures reveal how thrombomodulin's EGF domains flip the switch by blocking old substrates and docking new ones.

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Figure 1: The blood coagulation cascade involves proteolytic activation of a series of membrane bound proteases.
Figure 2: Structure of thrombomodulin's EGF domains in the thrombin-bound and free states.

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Acknowledgements

We thank P. Fuentes-Prior and M.J. Wood for providing atomic coordinates, and J. Mamay for helping with figure preparation.

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Correspondence to Michael Overduin.

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Overduin, M., de Beer, T. The plot thickens: How thrombin modulates blood clotting. Nat Struct Mol Biol 7, 267–269 (2000). https://doi.org/10.1038/74015

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