Downregulation of Ke 6, a novel gene encoded within the major histocompatibility complex, in murine polycystic kidney disease.
Polycystic kidney disease (PKD) is characterized by progressive enlargement of the kidneys due to numerous expanding cysts ultimately leading to renal failure. We have identified a gene, Ke 6, located within the H-2K/tw5 region on mouse chromosome 17, which is downregulated in two distinct murine models of heritable PKD. Ke 6 is a member of the short-chain alcohol dehydrogenase family and possess remarkable amino acid sequence conservation with several bacterial proteins with oxidoreductase function. The Ke 6 gene gives rise to two transcripts--a 1-kb Ke 6a mRNA which is abundant in kidney and liver tissue and a 1.4-kb Ke 6b mRNA which is found at a moderate level in spleen tissue. We report here the complete nucleotide sequence of Ke 6a cDNA and the expression of the Ke 6 gene in murine models of PKD. The Ke 6 gene may be intimately involved in the manifestation of these cystic kidney diseases.
Aziz
N
N
Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts.
Maxwell
M M
MM
St Jacques
B
B
Brenner
B M
BM
D000426:Alcohol Dehydrogenase / Q000235:genetics; D000595:Amino Acid Sequence; D000818:Animals; D001426:Bacterial Proteins / Q000235:genetics; D001483:Base Sequence; D002474:Cell-Free System; D002874:Chromosome Mapping; D003001:Cloning, Molecular; D003360:Cosmids / Q000235:genetics; D004195:Disease Models, Animal; D015536:Down-Regulation; D006649:Histocompatibility Antigens; D008285:Major Histocompatibility Complex / Q000235:genetics*; D051379:Mice; D008817:Mice, Mutant Strains / Q000235:genetics*; D008969:Molecular Sequence Data; D010088:Oxidoreductases / Q000235:genetics; D007690:Polycystic Kidney Diseases / Q000209:etiology / Q000235:genetics*; D014176:Protein Biosynthesis; D012333:RNA, Messenger / Q000032:analysis; D051381:Rats; D011922:Rats, Mutant Strains / Q000235:genetics; D016415:Sequence Alignment; D014018:Tissue Distribution
D001426:Bacterial Proteins; C079876:H2-Ke6 protein, mouse; D006649:Histocompatibility Antigens; D012333:RNA, Messenger; D010088:Oxidoreductases; D000426:Alcohol Dehydrogenase