The Lowe's oculocerebrorenal syndrome gene encodes a protein highly homologous to inositol polyphosphate-5-phosphatase

Autor: Olivos Im, Ichiro Okabe, David L. Nelson, Robert L. Nussbaum, O. Attree, L. C. Bailey, Richard A. Lewis, McInnes Rr
Rok vydání: 1992
Předmět:
Zdroj: Nature. 358:239-242
ISSN: 1476-4687
0028-0836
DOI: 10.1038/358239a0
Popis: LOWE'S oculocerebrorenal syndrome1–3 (OCRL) is a human X-linked developmental disorder of unknown pathogenesis4–8 and has a pleiotropic phenotype affecting the lens, brain and kidneys. The OCRL locus has been mapped to Xq25-q26 by linkage9–11 and by finding de novoX; autosome translocations at Xq25-q26 in two unrelated females with OCRL12,13. Here we use yeast artificial chromosomes with inserts that span the X chromosomal breakpoint from a female OCRL patient in order to isolate complementary DNAs for a gene that is interrupted by the translocation. We show that the transcript is absent in both female OCRL patients with X; autosome translocations and that it is absent or abnormally sized in 9 of 13 unrelated male OCRL patients with no detectable genomic rearrangement. The open reading frame encodes a new protein with 71% similarity to human inositol polyphosphate-5-phosphatase. Our results suggest that OCRL may be an inborn error of inositol phosphate metabolism.
Databáze: OpenAIRE