- The human S-adenosylmethionine decarboxylase gene: nucleotide sequence of a pseudogene and chromosomal localization of the active gene (AMD1) and the pseudogene (AMD2). Maric, S.C., Crozat, A., Louhimo, J., Knuutila, S., Jänne, O.A. Cytogenet. Cell Genet. (1995)