One of the two genomic copies of the glycine decarboxylase cDNA has been deleted at a 5′ region in a patient with nonketotic hyperglycinemia

Autor: Akihiro Kume, Toshihiro Sakakibara, Koichi Hiraga, Shigeo Kure, Y Ishiguro, Keiya Tada, H Koyata
Rok vydání: 1990
Předmět:
Zdroj: Biochemical and Biophysical Research Communications. 173:801-806
ISSN: 0006-291X
DOI: 10.1016/s0006-291x(05)80858-7
Popis: Summary One of eight patients with nonketotic hyperglycinemia resulted by the lesion in glycine decarboxylase showed the deletion of 0.6-kb Sac I and 1.5-kb Pst I fragments identified by the cDNA for this protein. A genomic clone, λHGDG10, encodes a 5′ region of this cDNA in an organized structure and can produce these two fragments. The other clone, λHGDG8, carries a processed gene. Southern analysis using a limited segment of this cDNA demonstrated that the 1.7-kb and 1.5-kb Pst I fragments predicted from its recognition sites in both genomic clones occur actually in the human genome, indicating that at least two copies of glycine decarboxylase cDNA exist in the haploid genome, and the patient has the glycine decarboxylase gene deleted at a 5′ region.
Databáze: OpenAIRE