- Factor X Nagoya 1 and Nagoya 2: a CRM- factor X deficiency and a dysfunctional CRM+ factor X deficiency characterized by substitution of Arg306 by Cys and of Gly366 by Ser, respectively. Miyata, T., Kojima, T., Suzuki, K., Umeyama, H., Yamazaki, T., Kamiya, T., Toyoda, H., Kato, H. Thromb. Haemost. (1998)