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Structures of factor XI and prekallikrein bound to domain 6 of high–molecular weight kininogen reveal alternate domain 6 conformations and exosites (2023)
Journal Article

Background: High–molecular weight kininogen (HK) circulates in plasma as a complex with zymogen prekallikrein (PK). HK is both a substrate and a cofactor for activated plasma kallikrein, and the principal exosite interactions occur between PK N-termi... Read More about Structures of factor XI and prekallikrein bound to domain 6 of high–molecular weight kininogen reveal alternate domain 6 conformations and exosites.

Crystal structures of the recombinant β-factor XIIa protease with bound Thr-Arg and Pro-Arg substrate mimetics (2019)
Journal Article
Pathak, M., Manna, R., Li, C., Kaira, B. G., Hamad, B. K., Belviso, B. D., …Emsley, J. (2019). Crystal structures of the recombinant β-factor XIIa protease with bound Thr-Arg and Pro-Arg substrate mimetics. Acta Crystallographica. Section d, Structural Biology, 75(6), 578-591. https://doi.org/10.1107/s2059798319006910

© 2019 International Union of Crystallography. Coagulation factor XII (FXII) is a key initiator of the contact pathway, which contributes to inflammatory pathways. FXII circulates as a zymogen, which when auto-activated forms factor XIIa (FXIIa). Her... Read More about Crystal structures of the recombinant β-factor XIIa protease with bound Thr-Arg and Pro-Arg substrate mimetics.

Plasma kallikrein structure reveals apple domain disc rotated conformation compared to factor XI (2019)
Journal Article
Li, C., Voos, K. M., Pathak, M., Hall, G., McCrae, K. R., Dreveny, I., …Emsley, J. (2019). Plasma kallikrein structure reveals apple domain disc rotated conformation compared to factor XI. Journal of Thrombosis and Haemostasis, 17(5), 759-770. https://doi.org/10.1111/jth.14418

Background Plasma prekallikrein (PK) and factor XI (FXI) are apple domain‐containing serine proteases that when activated to PKa and FXIa cleave substrates kininogen, factor XII, and factor IX, respectively, directing plasma coagulation, bradykinin... Read More about Plasma kallikrein structure reveals apple domain disc rotated conformation compared to factor XI.

Assessment of the protein interaction between coagulation factor XII and corn trypsin inhibitor by molecular docking and biochemical validation (2017)
Journal Article
Hamad, B. K., Pathak, M., Manna, R., Fischer, P. M., Emsley, J., & Dekker, L. V. (2017). Assessment of the protein interaction between coagulation factor XII and corn trypsin inhibitor by molecular docking and biochemical validation. Journal of Thrombosis and Haemostasis, 15(9), 1818-1828. https://doi.org/10.1111/jth.13773

Background: Corn trypsin inhibitor (CTI) has selectivity for serine proteases coagulation factor XII (FXII) and trypsin. CTI is in widespread use as a reagent that specifically inhibits the intrinsic pathway of blood coagulation but not the extrinsic... Read More about Assessment of the protein interaction between coagulation factor XII and corn trypsin inhibitor by molecular docking and biochemical validation.