Mutations affecting disulphide bonds contribute to a fairly common prevalence of F13B gene defects: results of a genetic study in 14 families with factor XIII B deficiency.
Ivaskevicius V, Biswas A, Loreth R, Schroeder V, Ohlenforst S, Rott H, Krause M, Kohler HP, Scharrer I, Oldenburg J. Haemophilia. 2010 Jul 1; 16(4):675-82. Epub 2010 Mar 10.