Murakami, M.T., Rios-Steiner, J., Weaver, S.E., Tulinsky, A., Geiger, J.H., Arni , R.K. (2007)Intermolecular interactions and characterization of the novel factor Xa exosite involved in macromolecular recognition and inhibition: crystal structure of human Gla-domainless factor Xa complexed with the anticoagulant protein NAPc2 from the hematophagous nematode Ancylostoma caninum, J Mol Biol. , 366(2), pp.602-10.